def _get_explorer_config(self):
from ibvpy.api import TLine, RTraceGraph, BCDof
ec = super(MATS1DDamage, self)._get_explorer_config()
ec['mats_eval'] = MATS1DDamage(E=1.0, epsilon_0=1.0, epsilon_f=5)
ec['bcond_list'] = [
BCDof(var='u',
dof=0,
value=1.7,
time_function=lambda t: (1 + 0.1 * t) * sin(t))
]
ec['tline'] = TLine(step=0.1, max=10)
ec['rtrace_list'] = [
RTraceGraph(name='strain - stress',
var_x='eps_app',
idx_x=0,
var_y='sig_app',
idx_y=0,
record_on='update'),
RTraceGraph(name='time - damage',
var_x='time',
idx_x=0,
var_y='omega',
idx_y=0,
record_on='update')
]
return ec
def _get_explorer_config(self):
from ibvpy.api import TLine, BCDof, RTraceGraph
c = super(MATS1DPlastic, self)._get_explorer_config()
# overload the default configuration
c['bcond_list'] = [
BCDof(var='u', dof=0, value=2.0, time_function=lambda t: sin(t))
]
c['rtrace_list'] = [
RTraceGraph(name='strain - stress',
var_x='eps_app',
idx_x=0,
var_y='sig_app',
idx_y=0,
record_on='update'),
RTraceGraph(name='time - plastic_strain',
var_x='time',
idx_x=0,
var_y='eps_p',
idx_y=0,
record_on='update'),
RTraceGraph(name='time - back stress',
var_x='time',
idx_x=0,
var_y='q',
idx_y=0,
record_on='update'),
RTraceGraph(name='time - hardening',
var_x='time',
idx_x=0,
var_y='alpha',
idx_y=0,
record_on='update')
]
c['tline'] = TLine(step=0.3, max=10)
return c
def test_bar1(self):
'''Clamped bar loaded at the right end with unit displacement
[00]-[01]-[02]-[03]-[04]-[05]-[06]-[07]-[08]-[09]-[10]
'u[0] = 0, u[10] = 1'''
self.domain.coord_max = (10, 0, 0)
self.domain.shape = (10, )
self.ts.bcond_list = [
BCDof(var='u', dof=0, value=0.),
BCDof(var='u', dof=10, value=1.)
]
self.ts.rtrace_list = [
RTraceGraph(name='Fi,right over u_right (iteration)',
var_y='F_int',
idx_y=10,
var_x='U_k',
idx_x=10)
]
u = self.tloop.eval()
# expected solution
u_ex = array([0., 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.],
dtype=float)
difference = sqrt(norm(u - u_ex))
self.assertAlmostEqual(difference, 0)
# compare the reaction at the left end
F = self.ts.F_int[0]
self.assertAlmostEqual(F, -1)
def _get_rt_list(self):
'''Prepare the list of tracers
'''
right_dof = self.fe_grid[-1, -1].dofs[0, 0, 0]
eps_app = RTraceDomainListField(name='Strain',
position='int_pnts',
var='eps_app',
warp=False)
damage = RTraceDomainListField(name='Damage',
position='int_pnts',
var='omega',
warp=False)
disp = RTraceDomainListField(name='Displacement',
position='int_pnts',
var='u',
warp=False)
sig_app = RTraceDomainListField(name='Stress',
position='int_pnts',
var='sig_app')
rt_fu = RTraceGraph(name='Fi,right over u_right (iteration)',
var_y='F_int',
idx_y=right_dof,
var_x='U_k',
idx_x=right_dof)
return [rt_fu, eps_app, damage, sig_app, disp]
def test_bar2():
'''Clamped bar composed of two linked bars loaded at the right end
[00]-[01]-[02]-[03]-[04]-[05]-[06]-[07]-[08]-[09]-[10]
[11]-[12]-[13]-[14]-[15]-[16]-[17]-[18]-[19]-[20]-[21]
u[0] = 0, u[5] = u[16], R[-1] = R[21] = 10
'''
fets_eval = FETS1D2L(mats_eval=MATS1DElastic(E=10., A=1.))
# Discretization
fe_domain1 = FEGrid(coord_max=(10., 0., 0.),
shape=(10, ),
n_nodal_dofs=1,
dof_r=fets_eval.dof_r,
geo_r=fets_eval.geo_r)
fe_domain2 = FEGrid(coord_min=(10., 0., 0.),
coord_max=(20., 0., 0.),
shape=(10, ),
n_nodal_dofs=1,
dof_r=fets_eval.dof_r,
geo_r=fets_eval.geo_r)
ts = TS(iterms=[(fets_eval, fe_domain1), (fets_eval, fe_domain2)],
dof_resultants=True,
bcond_list=[
BCDof(var='u', dof=0, value=0.),
BCDof(var='u',
dof=5,
link_dofs=[16],
link_coeffs=[1.],
value=0.),
BCDof(var='f', dof=21, value=10)
],
rtrace_list=[
RTraceGraph(name='Fi,right over u_right (iteration)',
var_y='F_int',
idx_y=0,
var_x='U_k',
idx_x=1),
])
# Add the time-loop control
tloop = TLoop(tstepper=ts, tline=TLine(min=0.0, step=1, max=1.0))
u = tloop.eval()
print 'u', u
#
# '---------------------------------------------------------------'
# 'Clamped bar composed of two linked bars control displ at right'
# 'u[0] = 0, u[5] = u[16], u[21] = 1'
# Remove the load and put a unit displacement at the right end
# Note, the load is irrelevant in this case and will be rewritten
#
ts.bcond_list = [
BCDof(var='u', dof=0, value=0.),
BCDof(var='u', dof=5, link_dofs=[16], link_coeffs=[1.], value=0.),
BCDof(var='u', dof=21, value=1.)
]
# system solver
u = tloop.eval()
print 'u', u
def _get_f_dof(self):
return RTraceGraph(name='Fi,right over u_right (iteration)',
var_y='F_int',
idx_y=self.dof,
var_x='U_k',
idx_x=self.dof + 2,
record_on='update')
def example_3d():
from ibvpy.mats.mats3D.mats3D_elastic.mats3D_elastic import MATS3DElastic
from ibvpy.fets.fets3D.fets3D8h import FETS3D8H
fets_eval = FETS3D8H(mats_eval=MATS3DElastic())
fe_domain = FEDomain()
fe_level1 = FERefinementGrid(domain=fe_domain, fets_eval=fets_eval)
# Discretization
fe_domain1 = FEGrid(coord_max=(2., 5., 3.),
shape=(2, 3, 2),
level=fe_level1,
fets_eval=fets_eval)
fe_child_domain = FERefinementGrid(parent=fe_domain1,
fine_cell_shape=(2, 2, 2))
fe_child_domain.refine_elem((1, 1, 0))
fe_child_domain.refine_elem((0, 1, 0))
fe_child_domain.refine_elem((1, 1, 1))
fe_child_domain.refine_elem((0, 1, 1))
ts = TS(
dof_resultants=True,
sdomain=fe_domain,
bcond_list=[
BCDofGroup(var='f',
value=1.,
dims=[0],
get_dof_method=fe_domain1.get_top_dofs),
BCDofGroup(var='u',
value=0.,
dims=[0, 1],
get_dof_method=fe_domain1.get_bottom_dofs),
],
rtrace_list=[
RTraceGraph(name='Fi,right over u_right (iteration)',
var_y='F_int',
idx_y=0,
var_x='U_k',
idx_x=1),
# RTraceDomainListField(name = 'Stress' ,
# var = 'sig_app', idx = 0, warp = True ),
# RTraceDomainField(name = 'Displacement' ,
# var = 'u', idx = 0),
# RTraceDomainField(name = 'N0' ,
# var = 'N_mtx', idx = 0,
# record_on = 'update')
])
# Add the time-loop control
tloop = TLoop(tstepper=ts, tline=TLine(min=0.0, step=1, max=1.0))
print tloop.eval()
from ibvpy.plugins.ibvpy_app import IBVPyApp
ibvpy_app = IBVPyApp(ibv_resource=tloop)
ibvpy_app.main()
def _get_explorer_config(self):
from ibvpy.api import BCDof, TLine, RTraceGraph
return {'bcond_list': [BCDof(var='u',
dof=0, value=0.01,
time_function=lambda t: t)],
'rtrace_list': [RTraceGraph(name='strain - stress',
var_x='eps_app', idx_x=0,
var_y='sig_app', idx_y=0,
record_on='update'),
RTraceGraph(name='strain - strain',
var_x='eps_app', idx_x=0,
var_y='eps_app', idx_y=1,
record_on='update'),
RTraceGraph(name='stress - stress',
var_x='sig_app', idx_x=0,
var_y='sig_app', idx_y=1,
record_on='update'),
RTraceGraph(name='Stress - Strain',
var_x='F_int', idx_x=0,
var_y='U_k', idx_y=0,
record_on='update'),
RTraceGraph(name='Strain - Strain',
var_x='U_k', idx_x=0,
var_y='U_k', idx_y=1,
record_on='update'),
RTraceGraph(name='Stress - Stress',
var_x='F_int', idx_x=0,
var_y='F_int', idx_y=1,
record_on='update'),
RTraceGraph(name='sig1 - eps1',
var_x='F_int', idx_x=0,
var_y='U_k', idx_y=0,
record_on='update'),
RTraceGraph(name='sig2 - sig3',
var_x='F_int', idx_x=1,
var_y='F_int', idx_y=2,
record_on='update'),
RTraceGraph(name='eps2 - eps3',
var_x='U_k', idx_x=1,
var_y='U_k', idx_y=2,
record_on='update')
],
'tline': TLine(step=0.1, max=1.0)
}
def _set_explorer_config(self, value):
self._explorer_config = value
def _get_explorer_rtrace_list(self):
'''Return the list of relevant tracers to be used in mats_explorer.
'''
return [
RTraceGraph(name='strain - stress',
var_x='eps_app',
idx_x=0,
var_y='sig_app',
idx_y=0,
record_on='update')
]
def example_2d():
from ibvpy.mats.mats2D.mats2D_elastic.mats2D_elastic import MATS2DElastic
from ibvpy.fets.fets2D.fets2D4q import FETS2D4Q
fets_eval = FETS2D4Q(mats_eval=MATS2DElastic(E=2.1e5))
# Discretization
fe_domain1 = FEGrid(coord_max=(2., 5., 0.),
shape=(10, 10),
fets_eval=fets_eval)
fe_subgrid1 = FERefinementLevel(parent=fe_domain1,
fine_cell_shape=(1, 1))
print 'children'
print fe_domain1.children
fe_subgrid1.refine_elem((5, 5))
fe_subgrid1.refine_elem((6, 5))
fe_subgrid1.refine_elem((7, 5))
fe_subgrid1.refine_elem((8, 5))
fe_subgrid1.refine_elem((9, 5))
fe_domain = FEDomain(subdomains=[fe_domain1])
ts = TS(dof_resultants=True,
sdomain=fe_domain,
bcond_list=[BCDofGroup(var='f', value=0.1, dims=[0],
get_dof_method=fe_domain1.get_top_dofs),
BCDofGroup(var='u', value=0., dims=[0, 1],
get_dof_method=fe_domain1.get_bottom_dofs),
],
rtrace_list=[RTraceGraph(name='Fi,right over u_right (iteration)',
var_y='F_int', idx_y=0,
var_x='U_k', idx_x=1),
RTraceDomainListField(name='Stress',
var='sig_app', idx=0, warp=True),
# RTraceDomainField(name = 'Displacement' ,
# var = 'u', idx = 0),
# RTraceDomainField(name = 'N0' ,
# var = 'N_mtx', idx = 0,
# record_on = 'update')
]
)
# Add the time-loop control
tloop = TLoop(tstepper=ts,
tline=TLine(min=0.0, step=1, max=1.0))
#
print tloop.eval()
from ibvpy.plugins.ibvpy_app import IBVPyApp
ibvpy_app = IBVPyApp(ibv_resource=tloop)
ibvpy_app.main()
def __demo__():
from ibvpy.api import \
TStepper as TS, RTraceGraph, RTraceDomainListField, TLoop, \
TLine, BCDof
from ibvpy.mats.mats1D.mats1D_elastic.mats1D_elastic import MATS1DElastic
fets_eval = FETS1D2L(mats_eval=MATS1DElastic(E=10.))
from ibvpy.mesh.fe_grid import FEGrid
# Discretization
domain = FEGrid(coord_max=(3., ), shape=(3, ), fets_eval=fets_eval)
ts = TS(dof_resultants=True,
sdomain=domain,
bcond_list=[
BCDof(var='u', dof=0, value=0.),
BCDof(
var='f',
dof=3,
value=1,
)
],
rtrace_list=[
RTraceGraph(name='Fi,right over u_right (iteration)',
var_y='F_int',
idx_y=0,
var_x='U_k',
idx_x=1),
RTraceDomainListField(name='Stress', var='sig_app', idx=0),
RTraceDomainListField(name='Displacement',
var='u',
idx=0,
warp=True),
RTraceDomainListField(name='N0',
var='N_mtx',
idx=0,
record_on='update')
])
# Add the time-loop control
tloop = TLoop(tstepper=ts, tline=TLine(min=0.0, step=0.5, max=1.0))
print '---- result ----'
print tloop.eval()
print ts.F_int
print ts.rtrace_list[0].trace.ydata
# Put the whole stuff into the simulation-framework to map the
# individual pieces of definition into the user interface.
#
app = IBVPyApp(ibv_resource=tloop)
app.main()
def _get_f_w_diagram(self):
domain = self.fe_grid_roof
w_z = domain[-1, -1, -1, -1, -1, -1].dofs[0, 0, 2]
return RTraceGraph(
name='load - corner deflection',
var_x='U_k',
idx_x=w_z,
transform_x='-x',
var_y='time',
idx_y=0,
# transform_y='y * %g' % self.lambda_factor,
record_on='update')
def test_bar4(self):
'''Clamped bar 3 domains, each with 2 elems (displ at right end)
[0]-[1]-[2] [3]-[4]-[5] [6]-[7]-[8]
u[0] = 0, u[2] = u[3], u[5] = u[6], u[8] = 1'''
self.fe_domain1.set(coord_min=(0, 0, 0),
coord_max=(2, 0, 0),
shape=(2, ))
self.fe_domain2.set(coord_min=(2, 0, 0),
coord_max=(4, 0, 0),
shape=(2, ))
self.fe_domain3.set(coord_min=(4, 0, 0),
coord_max=(6, 0, 0),
shape=(2, ))
self.ts.set(
sdomain=[self.fe_domain1, self.fe_domain2, self.fe_domain3],
dof_resultants=True,
bcond_list=[
BCDof(var='u', dof=0, value=0.),
BCDof(var='u',
dof=2,
link_dofs=[3],
link_coeffs=[1.],
value=0.),
BCDof(var='u',
dof=5,
link_dofs=[6],
link_coeffs=[1.],
value=0.),
BCDof(var='u', dof=8, value=1)
],
rtrace_list=[
RTraceGraph(name='Fi,right over u_right (iteration)',
var_y='F_int',
idx_y=0,
var_x='U_k',
idx_x=1),
])
# system solver
u = self.tloop.eval()
# expected solution
u_ex = array(
[0., 1 / 6., 1 / 3., 1 / 3., 1 / 2., 2 / 3., 2 / 3., 5 / 6., 1.],
dtype=float)
for u_, u_ex_ in zip(u, u_ex):
self.assertAlmostEqual(u_, u_ex_)
def setUp(self):
self.fets_eval = FETS1D2L(mats_eval=MATS1DElastic(E=10.))
# Discretization
self.fe_domain1 = FEGrid(coord_max=(3., 0., 0.),
shape=(3, ),
fets_eval=self.fets_eval)
self.fe_domain2 = FEGrid(coord_min=(3., 0., 0.),
coord_max=(6., 0., 0.),
shape=(3, ),
fets_eval=self.fets_eval)
self.fe_domain3 = FEGrid(coord_min=(3., 0., 0.),
coord_max=(6., 0., 0.),
shape=(3, ),
fets_eval=self.fets_eval)
self.ts = TS(
dof_resultants=True,
sdomain=[self.fe_domain1, self.fe_domain2, self.fe_domain3],
bcond_list=[
BCDof(var='u', dof=0, value=0.),
BCDof(var='u',
dof=4,
link_dofs=[3],
link_coeffs=[1.],
value=0.),
BCDof(var='f', dof=7, value=1, link_dofs=[2], link_coeffs=[2])
],
rtrace_list=[
RTraceGraph(name='Fi,right over u_right (iteration)',
var_y='F_int',
idx_y=0,
var_x='U_k',
idx_x=1),
])
# Add the time-loop control
self.tloop = TLoop(tstepper=self.ts,
tline=TLine(min=0.0, step=1, max=1.0))
def combined_fe2D4q_with_fe2D4q8u():
fets_eval_4u_conc = FETS2D4Q(mats_eval=MATS2DElastic(E=28500, nu=0.2))
fets_eval_4u_steel = FETS2D4Q(mats_eval=MATS2DElastic(E=210000, nu=0.25))
fets_eval_8u = FETS2D4Q8U(mats_eval=MATS2DElastic())
# Discretization
fe_domain = FEDomain()
fe_grid_level1 = FERefinementGrid(name='master grid',
fets_eval=fets_eval_4u_conc,
domain=fe_domain)
fe_grid = FEGrid(level=fe_grid_level1,
coord_max=(2., 6., 0.),
shape=(11, 30),
fets_eval=fets_eval_4u_conc)
fe_grid_level2 = FERefinementGrid(name='refinement grid',
parent=fe_grid_level1,
fets_eval=fets_eval_4u_steel,
fine_cell_shape=(1, 1))
# fe_grid_level1[ 5, :5 ].refine_using( fe_grid_level2 )
# 1. first get the slice for the level - distinguish it from the slice at the subgrid
# this includes slicing in the subgrids. what if the subgrid does not exist?
#
# Each subgrid must hold its own slice within the level. The index operator fills
# the grid [...] instanciates the whole grid and returns the instance of
# FEGridLevelSlice. The expanded subgrid contains its constructor slice.
#
# 2. If the slice is within an existing slice no change in the FESubgrid is required
# only the instance of the slice is returned. The FEGridLevelSlice goes always into
# an expanded part of FEGrid.
#
# 3. If the slice does not fit into any existing slice - all domain with an intersection
# of the existing slice must be constructed as well.
#
# 2. deactivate elements
# 3.
# BUT how to impose the boundary conditions on the particular refinement? The
# slice has an attribute
fe_grid_level2.refine_elem((5, 0))
fe_grid_level2.refine_elem((5, 1))
fe_grid_level2.refine_elem((5, 2))
fe_grid_level2.refine_elem((5, 3))
fe_grid_level2.refine_elem((5, 4))
fe_grid_level2.refine_elem((5, 5))
# apply the boundary condition on a subgrid
#
print fe_grid_level2.fe_subgrids
fe_first_grid = fe_grid_level2.fe_subgrids[0]
ts = TS(
dof_resultants=True,
sdomain=fe_domain,
bcond_list=[
BCSlice(var='f', value=1., dims=[0], slice=fe_grid[:, -1, :, -1]),
BCSlice(var='u',
value=0.,
dims=[0, 1],
slice=fe_first_grid[:, 0, :, 0])
],
rtrace_list=[
RTraceGraph(name='Fi,right over u_right (iteration)',
var_y='F_int',
idx_y=0,
var_x='U_k',
idx_x=1),
RTraceDomainListField(name='Stress',
var='sig_app',
idx=0,
warp=True),
# RTraceDomainField(name = 'Displacement' ,
# var = 'u', idx = 0),
# RTraceDomainField(name = 'N0' ,
# var = 'N_mtx', idx = 0,
# record_on = 'update')
])
# Add the time-loop control
tloop = TLoop(tstepper=ts, tline=TLine(min=0.0, step=1, max=1.0))
print tloop.eval()
from ibvpy.plugins.ibvpy_app import IBVPyApp
ibvpy_app = IBVPyApp(ibv_resource=tloop)
ibvpy_app.main()
def example_with_new_domain():
from ibvpy.api import \
TStepper as TS, RTraceGraph, RTraceDomainListField, TLoop, \
TLine, BCDof, IBVPSolve as IS, DOTSEval
from ibvpy.mats.mats1D.mats1D_elastic.mats1D_elastic import MATS1DElastic
fets_eval = FETS1D2L3U(mats_eval=MATS1DElastic(E=10.))
from ibvpy.mesh.fe_grid import FEGrid
# Discretization
domain = FEGrid(coord_max=(3., ), shape=(3, ), fets_eval=fets_eval)
ts = TS(
dof_resultants=True,
sdomain=domain,
# conversion to list (square brackets) is only necessary for slicing of
# single dofs, e.g "get_left_dofs()[0,1]"
# bcond_list = [ BCDof(var='u', dof = 0, value = 0.) ] +
# [ BCDof(var='u', dof = 2, value = 0.001 ) ]+
# [ ) ],
bcond_list=[
BCDof(var='u', dof=0, value=0.),
# BCDof(var='u', dof = 1, link_dofs = [2], link_coeffs = [0.5],
# value = 0. ),
# BCDof(var='u', dof = 2, link_dofs = [3], link_coeffs = [1.],
# value = 0. ),
BCDof(
var='f',
dof=6,
value=1,
#link_dofs = [2], link_coeffs = [2]
)
],
rtrace_list=[
RTraceGraph(name='Fi,right over u_right (iteration)',
var_y='F_int',
idx_y=0,
var_x='U_k',
idx_x=1),
RTraceDomainListField(name='Stress', var='sig_app', idx=0),
RTraceDomainListField(name='Displacement', var='u', idx=0),
RTraceDomainListField(name='N0',
var='N_mtx',
idx=0,
record_on='update')
])
# Add the time-loop control
tloop = TLoop(tstepper=ts, tline=TLine(min=0.0, step=1, max=1.0))
print '---- result ----'
print tloop.eval()
print ts.F_int
print ts.rtrace_list[0].trace.ydata
# Put the whole stuff into the simulation-framework to map the
# individual pieces of definition into the user interface.
#
from ibvpy.plugins.ibvpy_app import IBVPyApp
app = IBVPyApp(ibv_resource=tloop)
app.main()
def eval(self):
elem_length = self.length / float(self.shape)
flaw_radius = self.flaw_radius
mats = MATS1DElasticWithFlaw(E=10.,
flaw_position=self.flaw_position,
flaw_radius=flaw_radius,
reduction_factor=self.reduction_factor)
#fets_eval = FETS1D2L( mats_eval = mats )
fets_eval = FETS1D2L3U(mats_eval=mats)
domain = FEGrid(coord_max=(self.length, 0., 0.),
shape=(self.shape,),
fets_eval=fets_eval)
avg_processor = RTNonlocalAvg(avg_fn=QuarticAF(radius=self.avg_radius,
correction=True))
eps_app = RTraceDomainListField(name='Strain' ,
position='int_pnts',
var='eps_app',
warp=False)
damage = RTraceDomainListField(name='Damage' ,
position='int_pnts',
var='omega',
warp=False)
disp = RTraceDomainListField(name='Displacement' ,
position='int_pnts',
var='u',
warp=False)
sig_app = RTraceDomainListField(name='Stress' ,
position='int_pnts',
var='sig_app')
right_dof = domain[-1, -1].dofs[0, 0, 0]
rt_fu = RTraceGraph(name='Fi,right over u_right (iteration)' ,
var_y='F_int', idx_y=right_dof,
var_x='U_k', idx_x=right_dof)
ts = TS(u_processor=avg_processor,
dof_resultants=True,
sdomain=domain,
# conversion to list (square brackets) is only necessary for slicing of
# single dofs, e.g "get_left_dofs()[0,1]"
# bcond_list = [ BCDof(var='u', dof = 0, value = 0.) ] +
# [ BCDof(var='u', dof = 2, value = 0.001 ) ]+
# [ ) ],
bcond_list=[BCDof(var='u', dof=0, value=0.),
# BCDof(var='u', dof = 1, link_dofs = [2], link_coeffs = [0.5],
# value = 0. ),
# BCDof(var='u', dof = 2, link_dofs = [3], link_coeffs = [1.],
# value = 0. ),
BCDof(var='u', dof=right_dof, value=0.01,
) ],
rtrace_list=[ rt_fu,
eps_app,
# damage,
sig_app,
disp,
]
)
# Add the time-loop control
tloop = TLoop(tstepper=ts, KMAX=100, tolerance=1e-5,
verbose_iteration=False,
tline=TLine(min=0.0, step=1.0, max=1.0))
U = tloop.eval()
p.subplot(221)
rt_fu.refresh()
rt_fu.trace.plot(p)
eps = eps_app.subfields[0]
xdata = eps.vtk_X[:, 0]
ydata = eps.field_arr[:, 0, 0]
idata = argsort(xdata)
p.subplot(222)
p.plot(xdata[idata], ydata[idata], 'o-')
disp = disp.subfields[0]
xdata = disp.vtk_X[:, 0]
ydata = disp.field_arr[:, 0]
idata = argsort(xdata)
p.subplot(223)
p.plot(xdata[idata], ydata[idata], 'o-')
sig = sig_app.subfields[0]
xdata = sig.vtk_X[:, 0]
ydata = sig.field_arr[:, 0, 0]
idata = argsort(xdata)
p.subplot(224)
p.plot(xdata[idata], ydata[idata], 'o-')
def example_with_new_domain():
from ibvpy.api import \
TStepper as TS, RTraceGraph, RTraceDomainListField, \
RTraceDomainListInteg, TLoop, \
TLine, BCDof, IBVPSolve as IS, DOTSEval
from ibvpy.mats.mats2D.mats2D_elastic.mats2D_elastic import MATS2DElastic
from ibvpy.mats.mats2D.mats2D_sdamage.mats2D_sdamage import MATS2DScalarDamage
from ibvpy.api import BCDofGroup
mats_eval = MATS2DElastic()
fets_eval = FETS2D4Q(mats_eval=mats_eval)
#fets_eval = FETS2D4Q(mats_eval = MATS2DScalarDamage())
print fets_eval.vtk_node_cell_data
from ibvpy.mesh.fe_grid import FEGrid
from ibvpy.mesh.fe_refinement_grid import FERefinementGrid
from ibvpy.mesh.fe_domain import FEDomain
from mathkit.mfn import MFnLineArray
# Discretization
fe_grid = FEGrid(coord_max=(10., 4., 0.),
shape=(10, 3),
fets_eval=fets_eval)
bcg = BCDofGroup(var='u',
value=0.,
dims=[0],
get_dof_method=fe_grid.get_left_dofs)
bcg.setup(None)
print 'labels', bcg._get_labels()
print 'points', bcg._get_mvpoints()
mf = MFnLineArray( # xdata = arange(10),
ydata=array([0, 1, 2, 3]))
right_dof = 2
tstepper = TS(
sdomain=fe_grid,
bcond_list=[
BCDofGroup(var='u',
value=0.,
dims=[0, 1],
get_dof_method=fe_grid.get_left_dofs),
# BCDofGroup( var='u', value = 0., dims = [1],
# get_dof_method = fe_grid.get_bottom_dofs ),
BCDofGroup(var='u',
value=.005,
dims=[1],
time_function=mf.get_value,
get_dof_method=fe_grid.get_right_dofs)
],
rtrace_list=[
RTraceGraph(name='Fi,right over u_right (iteration)',
var_y='F_int',
idx_y=right_dof,
var_x='U_k',
idx_x=right_dof,
record_on='update'),
RTraceDomainListField(name='Stress',
var='sig_app',
idx=0,
position='int_pnts',
record_on='update'),
# RTraceDomainListField(name = 'Damage' ,
# var = 'omega', idx = 0,
#
# record_on = 'update',
# warp = True),
RTraceDomainListField(name='Displacement',
var='u',
idx=0,
record_on='update',
warp=True),
RTraceDomainListField(name='Strain energy',
var='strain_energy',
idx=0,
record_on='update',
warp=False),
RTraceDomainListInteg(name='Integ strain energy',
var='strain_energy',
idx=0,
record_on='update',
warp=False),
# RTraceDomainListField(name = 'N0' ,
# var = 'N_mtx', idx = 0,
# record_on = 'update')
])
# Add the time-loop control
#global tloop
tloop = TLoop(tstepper=tstepper,
KMAX=300,
tolerance=1e-4,
tline=TLine(min=0.0, step=1.0, max=1.0))
#import cProfile
#cProfile.run('tloop.eval()', 'tloop_prof' )
# print tloop.eval()
#import pstats
#p = pstats.Stats('tloop_prof')
# p.strip_dirs()
# print 'cumulative'
# p.sort_stats('cumulative').print_stats(20)
# print 'time'
# p.sort_stats('time').print_stats(20)
tloop.eval()
# Put the whole thing into the simulation-framework to map the
# individual pieces of definition into the user interface.
#
from ibvpy.plugins.ibvpy_app import IBVPyApp
app = IBVPyApp(ibv_resource=tloop)
app.main()
value=0.,
dims=[0],
get_dof_method=domain.get_left_dofs),
BCDofGroup(var='u',
value=0.,
dims=[1],
get_dof_method=domain.get_bottom_left_dofs),
BCDofGroup(var='u',
value=0.002,
dims=[0],
get_dof_method=domain.get_right_dofs)
],
rtrace_list=[
RTraceGraph(name='Fi,right over u_right (iteration)',
var_y='F_int',
idx_y=right_dof,
var_x='U_k',
idx_x=right_dof),
# RTraceDomainListField(name = 'Stress' ,
# var = 'sig_app', idx = 0,
# record_on = 'update'),
RTraceDomainListField(name='Displacement', var='u', idx=0),
# RTraceDomainListField(name = 'N0' ,
# var = 'N_mtx', idx = 0,
# record_on = 'update')
])
# Add the time-loop control
global tloop
tloop = TLoop(tstepper=ts, DT=0.5, tline=TLine(min=0.0, max=1.0, step=0.1))
def app():
avg_radius = 0.03
md = MATS2DScalarDamage(E=20.0e3,
nu=0.2,
epsilon_0=1.0e-4,
epsilon_f=8.0e-4,
#epsilon_f = 12.0e-4, #test doubling the e_f
stress_state="plane_strain",
stiffness="secant",
#stiffness = "algorithmic",
strain_norm=Rankine())
me = MATS2DElastic(E=20.0e3,
nu=0.2,
stress_state="plane_strain")
fets_eval = FETS2D4Q(mats_eval=md)#, ngp_r = 3, ngp_s = 3)
n_el_x = 40
# Discretization
fe_grid = FEGrid(coord_max=(.6, .2, 0.),
shape=(n_el_x, n_el_x / 3),
fets_eval=fets_eval)
mf = MFnLineArray(xdata=array([0, 1, 2, 3, 4 ]),
ydata=array([0, 2., 2.5, 3., 3.2 ]))
#averaging function
avg_processor = RTNonlocalAvg(avg_fn=QuarticAF(radius=avg_radius,
correction=True))
ts = TS(sdomain=fe_grid,
u_processor=avg_processor,
bcond_list=[
# constraint for all left dofs in y-direction:
BCSlice(var='u', slice=fe_grid[0, 0, 0, 0], dims=[0, 1], value=0.),
BCSlice(var='u', slice=fe_grid[-1, 0, -1, 0], dims=[1], value=0.),
BCSlice(var='u', slice=fe_grid[n_el_x / 2, -1, 0, -1], dims=[1],
time_function=mf.get_value,
value= -2.0e-5),
],
rtrace_list=[
RTraceGraph(name='Fi,right over u_right (iteration)' ,
var_y='F_int', idx_y=right_dof,
var_x='U_k', idx_x=right_dof,
record_on='update'),
RTraceDomainListField(name='Strain' ,
var='eps_app', idx=0,
record_on='update'),
RTraceDomainListField(name='Displacement' ,
var='u', idx=1,
record_on='update',
warp=True),
RTraceDomainListField(name='Damage' ,
var='omega', idx=0,
record_on='update',
warp=True),
# RTraceDomainField(name = 'Stress' ,
# var = 'sig', idx = 0,
# record_on = 'update'),
# RTraceDomainField(name = 'N0' ,
# var = 'N_mtx', idx = 0,
# record_on = 'update')
]
)
# Add the time-loop control
#
tl = TLoop(tstepper=ts,
tolerance=5.0e-5,
KMAX=50,
tline=TLine(min=0.0, step=1., max=10.0))
tl.eval()
# Put the whole stuff into the simulation-framework to map the
# individual pieces of definition into the user interface.
#
from ibvpy.plugins.ibvpy_app import IBVPyApp
ibvpy_app = IBVPyApp(ibv_resource=ts)
ibvpy_app.main()
if __name__ == '__main__':
from ibvpy.api import TLoop, TLine, BCDof, \
IBVPSolve as IS
tl = TLoop(tstepper=TS(tse=TSFn1D()),
tolerance=1e-8,
# debug = True,
KMAX=4,
verbose_iteration=True,
tline=TLine(min=0.0, step=0.25, max=1.0))
# tl.tstepper.bcond_list = [ BCDof( var = 'u', dof = 0, value = 1.0 ) ]
tl.tstepper.bcond_list = [BCDof(var='f', dof=0, value=0.9)]
tl.tstepper.rtrace_list = [
RTraceGraph(name='u_update',
var_x='U_k', idx_x=0,
var_y='F_int', idx_y=0,
record_on='update'),
RTraceGraph(name='u_iter',
var_x='U_k', idx_x=0,
var_y='F_int', idx_y=0,
record_on='iteration')
]
tl.eval()
for rt in tl.tstepper.rtrace_list:
rt.refresh()
rt.trace.plot(p, 'o-')
p.show()
'sig_norm': self.get_sig_norm,
'eps_p': self.get_eps_p
}
if __name__ == '__main__':
#-------------------------------------------------------------------------
# Example using the mats2d_explore
#-------------------------------------------------------------------------
from ibvpy.api import RTraceGraph
from ibvpy.mats.mats2D.mats2D_explore import MATS2DExplore
from yield_face2D import J2
mats2D_explore = \
MATS2DExplore(mats2D_eval=MATS2DPlastic(yf=J2()),
rtrace_list=[RTraceGraph(name='strain 0 - stress 0',
var_x='eps_app', idx_x=0,
var_y='sig_app', idx_y=0,
record_on='update'),
RTraceGraph(name='strain 0 - strain 1',
var_x='eps_app', idx_x=0,
var_y='eps_app', idx_y=1,
record_on='update'),
RTraceGraph(name='stress 0 - stress 1',
var_x='sig_app', idx_x=0,
var_y='sig_app', idx_y=1,
record_on='update'),
RTraceGraph(name='time - sig_norm',
var_x='time', idx_x=0,
var_y='sig_norm', idx_y=0,
record_on='update')
])
def simgrid(
fets_eval,
cube_size,
shape,
support_slices,
support_dirs,
loading_slice,
load_dir=0,
load_max=0.01,
n_load_steps=1,
vars=[],
ivars=[],
var_type='u',
):
'''Construct an idealization and run simulation with primary variable
fixed on support slices and with unit load on loading slices applied in load dir.
Return the solution vector and the fields specified in vars.
'''
# Discretization
domain = FEGrid(coord_max=cube_size, shape=shape, fets_eval=fets_eval)
u_max = load_max
support_bcond = [
BCSlice(var='u',
value=0,
dims=support_dir,
slice=domain[support_slice])
for support_slice, support_dir in zip(support_slices, support_dirs)
]
load_bcond = [
BCSlice(var=var_type,
value=u_max,
dims=[load_dir],
slice=domain[loading_slice])
]
bcond = support_bcond + load_bcond
loading_dofs = domain[loading_slice].dofs[:, :, load_dir].flatten()
graphs = [
RTraceGraph(name='Force in one node / Displ.',
var_y='F_int',
idx_x=loading_dof,
var_x='U_k',
idx_y=loading_dof) for loading_dof in loading_dofs
]
rtrace_list = [
RTraceDomainListField(
name=var,
var=var,
warp=True,
#position = 'int_pnts',
record_on='update') for var in vars
]
irtrace_list = [
RTraceDomainListInteg(name='Integ(' + var + ')',
var=var,
record_on='update') for var in ivars
]
ts = TS(sdomain=domain,
bcond_list=bcond,
rtrace_list=graphs + rtrace_list + irtrace_list)
load_step = 1. / float(n_load_steps)
# Add the time-loop control
tloop = TLoop(tstepper=ts,
KMAX=15,
RESETMAX=0,
tolerance=1e-5,
tline=TLine(min=0.0, step=load_step, max=1.0))
u = tloop.eval()
fields = [rtrace.subfields[0].field_arr for rtrace in rtrace_list]
integs = [rtrace.integ_val for rtrace in irtrace_list]
for graph in graphs:
graph.redraw()
traces = [graph.trace for graph in graphs]
xydata = (traces[0].xdata, column_stack([trace.ydata for trace in traces]))
return tloop, u, fields, integs, xydata
def peval(self):
'''Evaluation procedure.
'''
#mv = MATS1DDamageView( model = mats_eval )
#mv.configure_traits()
right_dof_m = self.fe_grid_m[-1, -1].dofs[0, 0, 0]
right_dof_fb = self.fe_grid_fb[-1, -1, -1, -1].dofs[0, 0, 0]
# Response tracers
A = self.A_m + self.A_f
self.sig_eps_m = RTraceGraph(name='F_u_m',
var_y='F_int',
idx_y=right_dof_m,
var_x='U_k',
idx_x=right_dof_m,
transform_y='y / %g' % A)
# Response tracers
self.sig_eps_f = RTraceGraph(name='F_u_f',
var_y='F_int',
idx_y=right_dof_fb,
var_x='U_k',
idx_x=right_dof_fb,
transform_y='y / %g' % A)
self.eps_m_field = RTraceDomainListField(name='eps_m',
position='int_pnts',
var='eps_app',
warp=False)
self.eps_f_field = RTraceDomainListField(name='eps_f',
position='int_pnts',
var='mats_phase2_eps_app',
warp=False)
# Response tracers
self.sig_m_field = RTraceDomainListField(name='sig_m',
position='int_pnts',
var='sig_app')
self.sig_f_field = RTraceDomainListField(name='sig_f',
position='int_pnts',
var='mats_phase2_sig_app')
self.omega_m_field = RTraceDomainListField(name='omega_m',
position='int_pnts',
var='omega',
warp=False)
self.shear_flow_field = RTraceDomainListField(name='shear flow',
position='int_pnts',
var='shear_flow',
warp=False)
self.slip_field = RTraceDomainListField(name='slip',
position='int_pnts',
var='slip',
warp=False)
avg_processor = None
if self.avg_radius > 0.0:
n_dofs = self.fe_domain.n_dofs
avg_processor = RTUAvg(sd=self.fe_m_level,
n_dofs=n_dofs,
avg_fn=QuarticAF(radius=self.avg_radius))
ts = TStepper(
u_processor=avg_processor,
dof_resultants=True,
sdomain=self.fe_domain,
bcond_list=[ # define the left clamping
BCSlice(var='u',
value=0.,
dims=[0],
slice=self.fe_grid_fb[0, 0, 0, :]),
# BCSlice( var = 'u', value = 0., dims = [0], slice = self.fe_grid_m[ 0, 0 ] ),
# loading at the right edge
# BCSlice( var = 'f', value = 1, dims = [0], slice = domain[-1, -1, -1, 0],
# time_function = ls ),
BCSlice(var='u',
value=self.final_displ,
dims=[0],
slice=self.fe_grid_fb[-1, -1, -1, :],
time_function=self.time_function),
# BCSlice( var = 'u', value = self.final_displ, dims = [0], slice = self.fe_grid_m[-1, -1],
# time_function = self.time_function ),
# fix horizontal displacement in the top layer
# BCSlice( var = 'u', value = 0., dims = [0], slice = domain[:, -1, :, -1] ),
# fix the vertical displacement all over the domain
BCSlice(var='u',
value=0.,
dims=[1],
slice=self.fe_grid_fb[:, :, :, :]),
# # Connect bond and matrix domains
BCDofGroup(var='u',
value=0.,
dims=[0],
get_link_dof_method=self.fe_grid_fb.get_bottom_dofs,
get_dof_method=self.fe_grid_m.get_all_dofs,
link_coeffs=[1.])
],
rtrace_list=[
self.sig_eps_m,
self.sig_eps_f,
self.eps_m_field,
self.eps_f_field,
self.sig_m_field,
self.sig_f_field,
self.omega_m_field,
self.shear_flow_field,
self.slip_field,
])
# Add the time-loop control
tloop = TLoop(tstepper=ts,
KMAX=300,
tolerance=1e-5,
debug=False,
verbose_iteration=True,
verbose_time=False,
tline=TLine(min=0.0, step=self.step_size, max=1.0))
tloop.on_accept_time_step = self.plot
U = tloop.eval()
self.sig_eps_f.refresh()
max_sig_m = max(self.sig_eps_m.trace.ydata)
return array([U[right_dof_m], max_sig_m], dtype='float_')
def test_bar4():
'''Clamped bar 3 domains, each with 2 elems (displ at right end)
[0]-[1]-[2] [3]-[4]-[5] [6]-[7]-[8]
u[0] = 0, u[2] = u[3], u[5] = u[6], u[8] = 1'''
fets_eval = FETS1D2L(mats_eval=MATS1DElastic(E=10., A=1.))
# Discretization
fe_domain1 = FEGrid(coord_max=(2., 0., 0.),
shape=(2, ),
n_nodal_dofs=1,
dof_r=fets_eval.dof_r,
geo_r=fets_eval.geo_r)
fe_domain2 = FEGrid(coord_min=(2., 0., 0.),
coord_max=(4., 0., 0.),
shape=(2, ),
n_nodal_dofs=1,
dof_r=fets_eval.dof_r,
geo_r=fets_eval.geo_r)
fe_domain3 = FEGrid(coord_min=(4., 0., 0.),
coord_max=(6., 0., 0.),
shape=(2, ),
n_nodal_dofs=1,
dof_r=fets_eval.dof_r,
geo_r=fets_eval.geo_r)
ts = TS(iterms=[(fets_eval, fe_domain1), (fets_eval, fe_domain2),
(fets_eval, fe_domain3)],
dof_resultants=True,
bcond_list=[
BCDof(var='u', dof=0, value=0.),
BCDof(var='u',
dof=2,
link_dofs=[3],
link_coeffs=[1.],
value=0.),
BCDof(var='u',
dof=5,
link_dofs=[6],
link_coeffs=[1.],
value=0.),
BCDof(var='u', dof=8, value=1)
],
rtrace_list=[
RTraceGraph(name='Fi,right over u_right (iteration)',
var_y='F_int',
idx_y=0,
var_x='U_k',
idx_x=1),
RTraceDomainListField(name='Displacement', var='u', idx=0)
])
# Add the time-loop control
tloop = TLoop(tstepper=ts, tline=TLine(min=0.0, step=1, max=1.0))
print tloop.eval()
from ibvpy.plugins.ibvpy_app import IBVPyApp
app = IBVPyApp(ibv_resource=tloop)
app.main()
def run():
#-------------------------------------------------------------------------
# Example using the mats2d_explore
#-------------------------------------------------------------------------
from ibvpy.mats.mats2D.mats2D_explore import MATS2DExplore
from ibvpy.mats.mats2D.mats2D_rtrace_cylinder import MATS2DRTraceCylinder
from ibvpy.mats.mats2D.mats2D_cmdm.mats2D_cmdm_rtrace_Gf_mic import \
MATS2DMicroplaneDamageTraceGfmic, \
MATS2DMicroplaneDamageTraceEtmic, MATS2DMicroplaneDamageTraceUtmic
from ibvpy.mats.mats2D.mats2D_cmdm.mats2D_cmdm_rtrace_Gf_mac import \
MATS2DMicroplaneDamageTraceGfmac, \
MATS2DMicroplaneDamageTraceEtmac, MATS2DMicroplaneDamageTraceUtmac
from ibvpy.mats.mats2D.mats2D_cmdm.mats2D_cmdm import \
MATS2DMicroplaneDamage, MATS1DMicroplaneDamage
from ibvpy.mats.matsXD.matsXD_cmdm import \
PhiFnGeneral, PhiFnStrainHardening
from ibvpy.api import RTraceGraph, RTraceArraySnapshot
from mathkit.mfn import MFnLineArray
from numpy import array, hstack
from ibvpy.mats.mats2D.mats2D_explorer_bcond import BCDofProportional
from os.path import join
ec = {
# overload the default configuration
'bcond_list': [BCDofProportional(max_strain=1.0, alpha_rad=0.0)],
'rtrace_list': [
RTraceGraph(name='stress - strain',
var_x='eps_app',
idx_x=0,
var_y='sig_app',
idx_y=0,
record_on='iteration'),
],
}
mats_eval = MATS2DMicroplaneDamage(
n_mp=15,
# mats_eval = MATS1DMicroplaneDamage(
elastic_debug=False,
stress_state='plane_stress',
symmetrization='sum-type',
model_version='compliance',
phi_fn=PhiFnGeneral,
)
# print 'normals', mats_eval._MPN
# print 'weights', mats_eval._MPW
fitter = MATSCalibDamageFn(
KMAX=300,
tolerance=5e-4, # 0.01,
RESETMAX=0,
dim=MATS2DExplore(
mats_eval=mats_eval,
explorer_config=ec,
),
store_fitted_phi_fn=True,
log=False)
#-------------------------------------------
# run fitter for entire available test data:
#-------------------------------------------
calibrate_all = False
if calibrate_all:
from matresdev.db.exdb.ex_run_table import \
ExRunClassExt
# from matresdev.db.exdb.ex_composite_tensile_test import \
# ExCompositeTensileTest
# ex = ExRunClassExt(klass=ExCompositeTensileTest)
# for ex_run in ex.ex_run_list:
# if ex_run.ready_for_calibration:
# print 'FITTING', ex_run.ex_type.key
# # 'E_c' of each test is different, therefore 'mats_eval'
# # needs to be defined for each test separately.
# #
# E_c = ex_run.ex_type.E_c
# nu = ex_run.ex_type.ccs.concrete_mixture_ref.nu
#
# # run calibration
# #
# fitter.ex_run = ex_run
# fitter.dim.mats_eval.E = E_c
# fitter.dim.mats_eval.nu = nu
# fitter.init()
# fitter.fit_response()
else:
test_file = join(
simdb.exdata_dir,
'tensile_tests',
'dog_bone',
# 'buttstrap_clamping',
'2010-02-09_TT-10g-3cm-a-TR_TRC11',
# 'TT11-10a-average.DAT' )
'TT-10g-3cm-a-TR-average.DAT')
#-----------------------------------
# tests for 'BT-3PT-12c-6cm-TU_ZiE'
#-----------------------------------
# 'ZiE-S1': test series no. 1 (age = 11d)
#
# '2011-05-23_TT-12c-6cm-0-TU_ZiE',
# 'TT-12c-6cm-0-TU-V2.DAT')
# 'ZiE-S2': test series no. 2 (age = 9d)
#
# '2011-06-10_TT-12c-6cm-0-TU_ZiE',
# 'TT-12c-6cm-0-TU-V2.DAT')
#-----------------------------------
# tests for 'BT-4PT-12c-6cm-TU_SH4'
# tests for 'ST-12c-6cm-TU' (fresh)
#-----------------------------------
# @todo: add missing front strain information from Aramis3d testing
#
# '2012-04-12_TT-12c-6cm-0-TU_SH4-Aramis3d',
# 'TT-12c-6cm-0-TU-SH4-V2.DAT')
# '2012-02-14_TT-12c-6cm-0-TU_SH2',
# 'TT-12c-6cm-0-TU-SH2-V2.DAT')
# '2012-02-14_TT-12c-6cm-0-TU_SH2',
# 'TT-12c-6cm-0-TU-SH2F-V3.DAT')
# used for suco(!)
# '2012-02-14_TT-12c-6cm-0-TU_SH2',
# 'TT-12c-6cm-0-TU-SH2-V1.DAT')
#-----------------------------------
# tests for 'BT-3PT-6c-2cm-TU_bs'
#-----------------------------------
# barrelshell
#
# # TT-bs1
# '2013-05-17_TT-6c-2cm-0-TU_bs1',
# 'TT-6c-2cm-0-TU-V3_bs1.DAT')
# # TT-bs2
# '2013-05-21-TT-6c-2cm-0-TU_bs2',
# 'TT-6c-2cm-0-TU-V1_bs2.DAT')
# # TT-bs3
# '2013-06-12_TT-6c-2cm-0-TU_bs3',
# 'TT-6c-2cm-0-TU-V1_bs3.DAT')
# # TTb-bs4-Aramis3d
# '2013-07-09_TTb-6c-2cm-0-TU_bs4-Aramis3d',
# 'TTb-6c-2cm-0-TU-V2_bs4.DAT')
#-----------------------------------
# tests for 'TT-6c-2cm-90-TU'
#-----------------------------------
#
# '2013-05-22_TTb-6c-2cm-90-TU-V3_bs1',
# 'TTb-6c-2cm-90-TU-V3_bs1.DAT')
# '2013-05-17_TT-6c-2cm-0-TU_bs1',
# 'TT-6c-2cm-90-TU-V3_bs1.DAT')
# test_file = join(simdb.exdata_dir,
# 'tensile_tests',
# 'buttstrap_clamping',
# '2013-07-18_TTb-6c-2cm-0-TU_bs5',
# 'TTb-6c-2cm-0-TU-V1_bs5.DAT')
# # 'TTb-6c-2cm-0-TU-V3_bs5.DAT')
#
# test_file = join(simdb.exdata_dir,
# 'tensile_tests',
# 'buttstrap_clamping',
# '2013-07-09_TTb-6c-2cm-0-TU_bs4-Aramis3d',
# 'TTb-6c-2cm-0-TU-V2_bs4.DAT')
#-----------------------------------
# tests for 'TT-6g-2cm-0-TU' (ARG-1200-TU)
#-----------------------------------
#
# test series no.1
#
# test_file = join(simdb.exdata_dir,
# 'tensile_tests',
# 'dog_bone',
# '2012-12-10_TT-6g-2cm-0-TU_bs',
# 'TT-6g-2cm-0-V2.DAT')
# test series no.3
#
# test_file = join(simdb.exdata_dir,
# 'tensile_tests',
# 'buttstrap_clamping',
# '2013-07-09_TTb-6g-2cm-0-TU_bs4-Aramis3d',
# 'TTb-6g-2cm-0-TU-V1_bs4.DAT')
# test series NxM_1
#
# test_file = join(simdb.exdata_dir,
# 'tensile_tests',
# 'buttstrap_clamping',
# '2014-04-30_TTb-6c-2cm-0-TU_NxM1',
# 'TTb-6c-2cm-0-TU-V16_NxM1.DAT')
#------------------------------------------------------------------
# set 'ex_run' of 'fitter' to selected calibration test
#------------------------------------------------------------------
#
ex_run = ExRun(data_file=test_file)
fitter.ex_run = ex_run
#------------------------------------------------------------------
# specify the parameters used within the calibration
#------------------------------------------------------------------
#
# get the composite E-modulus and Poisson's ratio as stored
# in the experiment data base for the specified age of the tensile test
#
E_c = ex_run.ex_type.E_c
print('E_c', E_c)
# # use the value as graphically determined from the tensile test (= initial stiffness for tension)
# E_c = 28000.
# age, Em(age), and nu of the slab test or bending test determines the
# calibration parameters. Those are used for calibration and are store in the 'param_key'
# appendet to the calibration-test-key
#
age = 28
# E-modulus of the concrete matrix at the age of testing
# NOTE: value is more relevant as compression behavior is determined by it in the bending tests and slab tests;
# behavior in the tensile zone is defined by calibrated 'phi_fn' with the predefined 'E_m'
# E_m = ex_run.ex_type.ccs.get_E_m_time(age)
E_c = ex_run.ex_type.ccs.get_E_c_time(age)
# use average E-modul from 0- and 90-degree direction for fitter in both directions
# this yields the correct tensile behavior and returns the best average compressive behavior
#
# E_c = 22313.4
# alternatively use maximum E-modul from 90-direction also for 0-degree direction for fitting
# this yields the correct tensile behavior also in the linear elastic regime for both directions corresponding to the
# tensile test behavior (note that the compressive E-Modulus in this case is overestimated in 0-degree direction; minor influence
# assumed as behavior is governed by inelastic tensile behavior and anisotropic redistrirbution;
#
# E_c = 29940.2
# E_c = 29100.
# E_c = 22390.4
# E_c = 18709.5
E_c = 28700.
# smallest value for matrix E-modulus obtained from cylinder tests (d=150mm)
# E_m = 18709.5
# set 'nu'
# @todo: check values stored in 'mat_db'
#
nu = 0.20
ex_run.ex_type.ccs.concrete_mixture_ref.nu = nu
n_steps = 200
fitter.n_steps = n_steps
fitter.format_ticks = True
fitter.ex_run.ex_type.age = age
print('age = %g used for calibration' % age)
fitter.ex_run = ex_run
# print 'E_m(age) = %g used for calibration' % E_m
# fitter.dim.mats_eval.E = E_m
print('E_c(age) = %g used for calibration' % E_c)
fitter.dim.mats_eval.E = E_c
print('nu = %g used for calibration' % nu)
fitter.dim.mats_eval.nu = nu
print('n_steps = %g used for calibration' % n_steps)
max_eps = fitter.max_eps
print('max_eps = %g used for calibration' % max_eps)
#------------------------------------------------------------------
# set 'param_key' of 'fitter' to store calibration params in the name
#------------------------------------------------------------------
#
# param_key = '_age%g_Em%g_nu%g_nsteps%g' % (age, E_m, nu, n_steps)
# param_key = '_age%g_Ec%g_nu%g_nsteps%g__smoothed' % (age, E_c, nu, n_steps, max_eps)
param_key = '_age%g_Ec%g_nu%g_nsteps%g_smoothed' % (age, E_c, nu,
n_steps)
fitter.param_key = param_key
print('param_key = %s used in calibration name' % param_key)
#------------------------------------------------------------------
# run fitting procedure
#------------------------------------------------------------------
#
import pylab as p
ax = p.subplot(111)
fitter.mfn_line_array_target.mpl_plot(ax)
p.show()
fitter.init()
fitter.fit_response()
fitter.store()
fitter.plot_trial_steps()
return
#---------------------------
# basic testing of fitter methods:
#---------------------------
# set to True for basic testing of the methods:
basic_tests = False
if basic_tests:
fitter.run_through()
# fitter.tloop.rtrace_mngr.rtrace_bound_list[0].configure_traits()
fitter.tloop.rtrace_mngr.rtrace_bound_list[0].redraw()
last_strain_run_through = fitter.tloop.rtrace_mngr.rtrace_bound_list[
0].trace.xdata[:]
last_stress_run_through = fitter.tloop.rtrace_mngr.rtrace_bound_list[
0].trace.ydata[:]
print('last strain (run-through) value', last_strain_run_through)
print('last stress (run-through) value', last_stress_run_through)
fitter.tloop.reset()
fitter.run_step_by_step()
# fitter.tloop.rtrace_mngr.rtrace_bound_list[0].configure_traits()
fitter.tloop.rtrace_mngr.rtrace_bound_list[0].redraw()
last_strain_step_by_step = fitter.tloop.rtrace_mngr.rtrace_bound_list[
0].trace.xdata[:]
last_stress_step_by_step = fitter.tloop.rtrace_mngr.rtrace_bound_list[
0].trace.ydata[:]
print('last stress (step-by-step) value', last_stress_step_by_step)
fitter.run_trial_step()
fitter.run_trial_step()
fitter.tloop.rtrace_mngr.rtrace_bound_list[0].redraw()
strain_after_trial_steps = fitter.tloop.rtrace_mngr.rtrace_bound_list[
0].trace.xdata[:]
stress_after_trial_steps = fitter.tloop.rtrace_mngr.rtrace_bound_list[
0].trace.ydata[:]
print('stress after trial', stress_after_trial_steps)
fitter.init()
# fitter.mats2D_eval.configure_traits()
lof = fitter.get_lack_of_fit(1.0)
print('1', lof)
lof = fitter.get_lack_of_fit(0.9)
print('2', lof)
# fitter.tloop.rtrace_mngr.configure_traits()
fitter.run_trial_step()
else:
from ibvpy.plugins.ibvpy_app import IBVPyApp
ibvpy_app = IBVPyApp(ibv_resource=fitter)
ibvpy_app.main()
def _get_tloop(self):
#--------------------------------------------------------------
# ts
#--------------------------------------------------------------
mid_zone_spec = self.mid_zone_specmn_fe_grid
load_zone_spec = self.load_zone_specmn_fe_grid
outer_zone_spec = self.outer_zone_specmn_fe_grid
if self.elstmr_flag:
# ELSTRMR TOP SURFACE
# dofs at elastomer top surface (used to integrate the force)
#
elastomer = self.elstmr_fe_grid
elstmr_top_dofs_z = elastomer[:, :, -1, :, :,
-1].dofs[:, :, 2].flatten()
load_dofs_z = np.unique(elstmr_top_dofs_z)
print 'load_dofs_z', load_dofs_z
else:
# LINE LOAD TOP OF LOAD ZONE
# dofs at center line of the specmn load zone (used to integrate the force)
# note slice index in x-direction is only valid for load_zone_shape_x = 2 !
#
load_zone_spec_topline_dofs_z = load_zone_spec[
0, :, -1, -1, :, -1].dofs[:, :, 2].flatten()
load_dofs_z = np.unique(load_zone_spec_topline_dofs_z)
print 'load_dofs_z', load_dofs_z
# SUPPRT LINE
# dofs at support line of the specmn (used to integrate the force)
#
outer_zone_spec_supprtline_dofs_z = outer_zone_spec[
-1, :, 0, -1, :, 0].dofs[:, :, 2].flatten()
supprt_dofs_z = np.unique(outer_zone_spec_supprtline_dofs_z)
print 'supprt_dofs_z', supprt_dofs_z
# CENTER DOF (used for tracing of the displacement)
#
center_bottom_dof = mid_zone_spec[0, 0, 0, 0, 0, 0].dofs[0, 0, 2]
print 'center_bottom_dof', center_bottom_dof
# THIRDPOINT DOF (used for tracing of the displacement)
# dofs at center middle of the laod zone at the bottom side
#
# NOTE: slice index in x-direction is only valid for load_zone_shape_x = 2 !
thirdpoint_bottom_dof = load_zone_spec[0, 0, 0, -1, 0, 0].dofs[0, 0, 2]
print 'thirdpoint_bottom_dof', thirdpoint_bottom_dof
# force-displacement-diagram (CENTER)
#
self.f_w_diagram_center = RTraceGraph(
name='displacement_elasttop (center) - force',
var_x='U_k',
idx_x=center_bottom_dof,
var_y='F_int',
idx_y_arr=load_dofs_z,
record_on='update',
transform_x='-x * 1000', # %g * x' % ( fabs( w_max ),),
# due to symmetry the total force sums up from four parts of the beam (2 symmetry axis):
#
transform_y='-4000. * y')
# force-displacement-diagram_supprt (SUPPRT)
#
self.f_w_diagram_supprt = RTraceGraph(
name='displacement_supprtline (center) - force',
var_x='U_k',
idx_x=center_bottom_dof,
var_y='F_int',
idx_y_arr=supprt_dofs_z,
record_on='update',
transform_x='-x * 1000', # %g * x' % ( fabs( w_max ),),
# due to symmetry the total force sums up from four parts of the beam (2 symmetry axis):
#
transform_y='4000. * y')
# force-displacement-diagram (THIRDPOINT)
#
self.f_w_diagram_thirdpoint = RTraceGraph(
name='displacement_elasttop (thirdpoint) - force',
var_x='U_k',
idx_x=thirdpoint_bottom_dof,
var_y='F_int',
idx_y_arr=load_dofs_z,
record_on='update',
transform_x='-x * 1000', # %g * x' % ( fabs( w_max ),),
# due to symmetry the total force sums up from four parts of the beam (2 symmetry axis):
#
transform_y='-4000. * y')
ts = TS(
sdomain=self.fe_domain,
bcond_list=self.bc_list,
rtrace_list=[
self.f_w_diagram_center,
self.f_w_diagram_thirdpoint,
self.f_w_diagram_supprt,
RTraceDomainListField(name='Displacement',
var='u',
idx=0,
warp=True),
# RTraceDomainListField(name = 'Stress' ,
# var = 'sig_app', idx = 0, warp = True,
# record_on = 'update'),
# RTraceDomainListField(name = 'Strain' ,
# var = 'eps_app', idx = 0, warp = True,
# record_on = 'update'),
# RTraceDomainListField(name = 'Damage' ,
# var = 'omega_mtx', idx = 0, warp = True,
# record_on = 'update'),
RTraceDomainListField(name='max_omega_i',
warp=True,
var='max_omega_i',
idx=0,
record_on='update'),
# RTraceDomainListField(name = 'IStress' ,
# position = 'int_pnts',
# var = 'sig_app', idx = 0,
# record_on = 'update'),
# RTraceDomainListField(name = 'IStrain' ,
# position = 'int_pnts',
# var = 'eps_app', idx = 0,
# record_on = 'update'),
])
# Add the time-loop control
tloop = TLoop(tstepper=ts,
KMAX=50,
tolerance=self.tolerance,
RESETMAX=0,
tline=TLine(min=0.0, step=self.tstep, max=self.tmax),
ord=self.ord)
return tloop
fets_eval=fets_eval)
fe_domain2 = FEGrid(coord_min=(10., 0., 0.),
coord_max=(20., 0., 0.),
shape=(10,),
fets_eval=fets_eval)
fe_domain = FEDomain(subdomains=[fe_domain1, fe_domain2])
ts = TS(dof_resultants=True,
sdomain=fe_domain,
bcond_list=[BCDof(var='u', dof=0, value=0.),
BCDof(
var='u', dof=5, link_dofs=[16], link_coeffs=[1.], value=0.),
BCDof(var='f', dof=21, value=10)],
rtrace_list=[RTraceGraph(name='Fi,right over u_right (iteration)',
var_y='F_int', idx_y=0,
var_x='U_k', idx_x=1),
]
)
# Add the time-loop control
tloop = TLoop(tstepper=ts, tline=TLine(min=0.0, step=1, max=1.0))
ts.set(sdomain=FEDomain(subdomains=[fe_domain1, fe_domain2]))
ts.set(bcond_list=[BCDof(var='u', dof=0, value=0.),
BCDof(
var='u', dof=5, link_dofs=[16], link_coeffs=[1.], value=0.),
BCDof(var='f', dof=21, value=10)])
print tloop.eval()
def peval( self ):
'''Evaluation procedure.
'''
#mv = MATS1DDamageView( model = mats_eval )
#mv.configure_traits()
self.mats_m.reset_state()
# Discretization
#
length = self.length
domain = FEGrid( coord_min = ( 0., length / 5. ),
coord_max = ( length, 0. ),
shape = ( self.shape, 1 ),
fets_eval = self.fets )
right_dofs = domain[-1, -1, -1, :].dofs[0, :, 0]
print 'concrete_dofs', id( domain ), domain[:, 0, :, 0].dofs
# Response tracers
self.stress_strain = RTraceGraph( name = 'Fi,right over u_right (iteration)' ,
var_y = 'F_int', idx_y = right_dofs[0],
var_x = 'U_k', idx_x = right_dofs[0] )
self.eps_m_field = RTraceDomainListField( name = 'eps_m' , position = 'int_pnts',
var = 'eps1', idx = 0,
warp = True )
self.eps_f_field = RTraceDomainListField( name = 'eps_f' , position = 'int_pnts',
var = 'eps2', idx = 0,
warp = True )
# Response tracers
self.sig_m_field = RTraceDomainListField( name = 'sig_m' , position = 'int_pnts',
var = 'mats_phase1_sig_app', idx = 0 )
self.sig_f_field = RTraceDomainListField( name = 'sig_f' , position = 'int_pnts',
var = 'mats_phase2_sig_app', idx = 0 )
self.omega_m_field = RTraceDomainListField( name = 'omega_m' , position = 'int_pnts',
var = 'mats_phase1_omega', idx = 0,
warp = True )
#
damage_onset_displ = self.mats_m.epsilon_0 * self.length
go_behind = 1.5
finish_displ = go_behind * damage_onset_displ
n_steps = 20
step_size = ( finish_displ - damage_onset_displ ) / n_steps
tmax = 1 + n_steps
def ls( t ):
if t <= 1:
return t
else:
return 1.0 + ( t - 1.0 ) / n_steps * ( go_behind - 1 )
ts = TSCrackLoc(
dof_resultants = True,
on_update = self.plot,
sdomain = domain,
bcond_list = [# define the left clamping
BCSlice( var = 'u', value = 0., dims = [0], slice = domain[ 0, 0, 0, :] ),
# loading at the right edge
BCSlice( var = 'f', value = 1, dims = [0], slice = domain[-1, -1, -1, 0],
time_function = ls ),
# BCSlice(var='u', value = finish_displ, dims = [0], slice = domain[-1,-1,-1, 0],
# time_function = ls ),
# fix horizontal displacement in the top layer
BCSlice( var = 'u', value = 0., dims = [0], slice = domain[:, -1, :, -1] ),
# fix the vertical displacement all over the domain
BCSlice( var = 'u', value = 0., dims = [1], slice = domain[ :, :, :, :] )
],
rtrace_list = [ self.stress_strain,
self.eps_m_field,
self.eps_f_field,
self.sig_m_field,
self.sig_f_field,
self.omega_m_field ]
)
# Add the time-loop control
tloop = TLoop( tstepper = ts, KMAX = 200, debug = True, tolerance = 1e-5,
tline = TLine( min = 0.0, step = 1.0, max = 1.0 ) )
print ts.rte_dict.keys()
U = tloop.eval()
self.plot()
return array( [ U[right_dofs[-1]] ], dtype = 'float_' )
if __name__ == '__main__':
#------------------------------------------------------------------------------
# Example
#------------------------------------------------------------------------------
from ibvpy.api import RTraceGraph
from ibvpy.mats.mats2D.mats2D_explore import MATS2DExplore
mats2D_explore = \
MATS2DExplore(mats2D_eval=MATS2DScalarDamage(strain_norm_type='Rankine'),
# stiffness = 'algorithmic' ),
rtrace_list=[ RTraceGraph(name='strain - stress',
var_x='eps_app', idx_x=0,
var_y='sig_app', idx_y=0,
record_on='update'),
RTraceGraph(name='strain - strain',
var_x='eps_app', idx_x=0,
var_y='eps_app', idx_y=1,
record_on='update'),
RTraceGraph(name='stress - stress',
var_x='sig_app', idx_x=0,
var_y='sig_app', idx_y=1,
record_on='update'),
# RTraceGraph(name = 'time - sig_norm',
# var_x = 'time', idx_x = 0,
# var_y = 'sig_norm', idx_y = 0,
# record_on = 'update' ),
]
)
