def example_1d():
from ibvpy.mats.mats1D.mats1D_elastic.mats1D_elastic import MATS1DElastic
from ibvpy.fets.fets1D.fets1D2l import FETS1D2L
fets_eval = FETS1D2L(mats_eval=MATS1DElastic())
# Discretization
fe_domain = FEDomain()
fe_level1 = FERefinementGrid(domain=fe_domain, fets_eval=fets_eval)
fe_domain1 = FEGrid(coord_max=(3., 0., 0.),
shape=(3, ),
level=fe_level1,
fets_eval=fets_eval)
fe_child_domain = FERefinementGrid(parent_domain=fe_level1,
fine_cell_shape=(2, ))
fe_child_domain.refine_elem((1, ))
ts = TS(domain=fe_domain,
dof_resultants=True,
sdomain=fe_domain,
bcond_list=[
BCDof(var='u', dof=0, value=0.),
BCDof(var='f', dof=3, value=1.)
])
# Add the time-loop control
tloop = TLoop(tstepper=ts,
debug=True,
tline=TLine(min=0.0, step=1, max=1.0))
print tloop.eval()
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 setUp(self):
self.fets_eval = FETS1D2L(mats_eval=MATS1DElastic(E=10.))
# Discretization
self.domain = FEGrid(coord_max=(10., 0., 0.),
shape=(1, ),
fets_eval=self.fets_eval)
self.ts = TS(sdomain=self.domain, dof_resultants=True)
self.tloop = TLoop(tstepper=self.ts,
tline=TLine(min=0.0, step=1, max=1.0))
def example_1d():
from ibvpy.api import FEDomain, FERefinementGrid, FEGrid, TStepper as TS, \
BCDofGroup, RTraceDomainListField
from ibvpy.core.tloop import TLoop, TLine
from ibvpy.mesh.xfe_subdomain import XFESubDomain
from ibvpy.mats.mats1D.mats1D_elastic.mats1D_elastic import MATS1DElastic
from ibvpy.fets.fets1D.fets1D2l import FETS1D2L
from ibvpy.fets.fets1D.fets1D2l3u import FETS1D2L3U
from ibvpy.fets.fets_ls.fets_crack import FETSCrack
fets_eval = FETS1D2L( mats_eval = MATS1DElastic( E = 1. ) ) #, A=1.))
#xfets_eval = fets_eval # use the same element for the enrichment
xfets_eval = FETSCrack( parent_fets = fets_eval )
# Discretization
fe_domain = FEDomain()
fe_level1 = FERefinementGrid( domain = fe_domain, fets_eval = fets_eval )
fe_grid1 = FEGrid( coord_max = ( 4., 0., 0. ),
shape = ( 4, ),
fets_eval = fets_eval,
level = fe_level1 )
enr = True
if enr:
fe_xdomain = XFESubDomain( domain = fe_domain,
fets_eval = xfets_eval,
fe_grid_slice = fe_grid1[ '(X - 2) **2 - 0.5 ' ] )
fe_xdomain.deactivate_sliced_elems()
print 'elem_dof_map', fe_xdomain.elem_dof_map
fe_domain = FEDomain()
fe_level1 = FERefinementGrid( domain = fe_domain, fets_eval = fets_eval )
fe_grid1 = FEGrid( coord_max = ( 4 * 3.14, 0., 0. ),
shape = ( 8, ),
fets_eval = fets_eval,
level = fe_level1 )
enr = True
if enr:
fe_xdomain = XFESubDomain( domain = fe_domain,
fets_eval = xfets_eval,
fe_grid_slice = fe_grid1[ 'cos(X) - 0.5' ] )
fe_xdomain.deactivate_sliced_elems()
print 'elem_dof_map2', fe_xdomain.elem_dof_map
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 example_1d():
from ibvpy.mats.mats1D.mats1D_elastic.mats1D_elastic import MATS1DElastic
from ibvpy.fets.fets1D.fets1D2l import FETS1D2L
from ibvpy.fets.fets1D.fets1D2l3u import FETS1D2L3U
from ibvpy.fets.fets_ls.fets_crack import FETSCrack
fets_eval = FETS1D2L(mats_eval=MATS1DElastic(E=1.))
xfets_eval = FETSBimaterial(mats_eval=MATS1DElastic(E=1.),
mats_eval2=MATS1DElastic(E=2.),
parent_fets=fets_eval,
int_order=1)
# Discretization
fe_domain = FEDomain()
fe_level1 = FERefinementGrid(domain=fe_domain, fets_eval=fets_eval)
fe_grid1 = FEGrid(coord_max=(2., 0., 0.),
shape=(1, ),
fets_eval=fets_eval,
level=fe_level1)
enr = True
if enr:
fe_xdomain = XFESubDomain(
domain=fe_domain,
fets_eval=xfets_eval,
#fe_grid_idx_slice = fe_grid1[1,0],
fe_grid_slice=fe_grid1['X - 0.'])
ts = TS(
dof_resultants=True,
sdomain=fe_domain,
bcond_list=[
BCDofGroup(var='u',
value=1.,
dims=[0],
get_dof_method=fe_grid1.get_right_dofs),
BCDofGroup(var='u',
value=0.,
dims=[0],
get_dof_method=fe_grid1.get_left_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 ),
RTraceDomainListField(name='Displacement',
var='u',
idx=0,
warp=True),
RTraceDomainListField(name='Strain',
var='eps',
idx=0,
warp=True),
# RTraceDomainField(name = 'N0' ,
# var = 'N_mtx', idx = 0,
# record_on = 'update')
])
#
# # Add the time-loop control
tloop = TLoop(
tstepper=ts,
#tolerance = 1e-4, KMAX = 2,
#debug = True, RESETMAX = 2,
tline=TLine(min=0.0, step=1, max=1.0))
#print "elements ",fe_xdomain.elements[0]
if enr:
fe_xdomain.deactivate_sliced_elems()
print 'parent elems ', fe_xdomain.fe_grid_slice.elems
print 'parent dofs ', fe_xdomain.fe_grid_slice.dofs
print "dofmap ", fe_xdomain.elem_dof_map
print "ls_values ", fe_xdomain.dots.dof_node_ls_values
print 'intersection points ', fe_xdomain.fe_grid_slice.r_i #
print "triangles ", fe_xdomain.dots.int_division
print 'ip_coords', fe_xdomain.dots.ip_coords
print 'ip_weigths', fe_xdomain.dots.ip_weights
print 'ip_offset ', fe_xdomain.dots.ip_offset
print 'ip_X_coords', fe_xdomain.dots.ip_X
print 'ip_ls', fe_xdomain.dots.ip_ls_values
print 'vtk_X ', fe_xdomain.dots.vtk_X
print 'vtk triangles ', fe_xdomain.dots.rt_triangles
print "vtk data ", fe_xdomain.dots.get_vtk_cell_data(
'blabla', 0, 0)
print 'vtk_ls', fe_xdomain.dots.vtk_ls_values
print 'J_det ', fe_xdomain.dots.J_det_grid
print tloop.eval()
# #ts.setup()
from ibvpy.plugins.ibvpy_app import IBVPyApp
ibvpy_app = IBVPyApp(ibv_resource=ts)
ibvpy_app.main()
#from sys_matrix import SysSparseMtx, SysDenseMtx
import unittest
from ibvpy.api import \
TStepper as TS, RTDofGraph, RTraceDomainField, TLoop, \
TLine, BCDof
from ibvpy.fets.fets1D.fets1D2l import FETS1D2L
from ibvpy.mats.mats1D.mats1D_elastic.mats1D_elastic import MATS1DElastic
from ibvpy.mesh.fe_grid import FEGrid
from numpy import array, sqrt
from scipy.linalg import norm
if __name__ == '__main__':
fets_eval = FETS1D2L(mats_eval=MATS1DElastic(E=10.))
# Discretization
domain = FEGrid(coord_max=(10., 0., 0.),
shape=(1,),
fets_eval=fets_eval
)
ts = TS(sdomain=domain,
dof_resultants=True
)
tloop = TLoop(tstepper=ts,
tline=TLine(min=0.0, step=1, max=1.0))
'''Clamped bar loaded at the right end with unit displacement
[00]-[01]-[02]-[03]-[04]-[05]-[06]-[07]-[08]-[09]-[10]
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 _get_fets(self):
fets_eval = FETS1D2L(mats_eval=self.mats)
# fets_eval = FETS1D2L3U( mats_eval = self.mats )
return fets_eval
interior_bc = fe_grid[1, 1, 1:, 1:]
bcond_list = [
BCSlice(var='u', dims=[0, 1], slice=fe_grid[:, 0, :, 0],
value=0.0),
BCSlice(var='u',
dims=[0, 1],
slice=interior_bc,
link_slice=fe_grid[1, 0, 0, 0],
link_coeffs=[0],
value=0.0),
BCSlice(var='f', dims=[1], slice=fe_grid[0, -1, :, -1], value=1.0)
]
else:
fets_eval_1d = FETS1D2L(mats_eval=MATS1DElastic())
fe_grid = FEGrid(name='fe_grid1',
coord_max=(4., ),
shape=(4, ),
fets_eval=fets_eval_1d)
interior_elems = fe_grid[1:3, :].elems
interior_bc = fe_grid[1:2, 1:]
bcond_list = [
BCSlice(var='u', dims=[0], slice=fe_grid[0, 0], value=0.0),
BCSlice(var='u',
dims=[0],
slice=interior_bc,
link_slice=fe_grid[0, 0],
link_coeffs=[0],