def modal(geom_file, num_modes, path):
# add shell elements from mesh ---------------------------------------------
with open(geom_file, 'rb') as fh:
geom_data = json.load(fh)
mesh = Mesh.from_data(geom_data['mesh'])
s = structure.Structure()
s.add_nodes_elements_from_mesh(mesh, element_type='ShellElement')
# add displacements --------------------------------------------------------
pts = geom_data['pts']
nkeys = []
for pt in pts:
nkeys.append(s.check_node_exists(pt))
s.add_set(name='support_nodes', type='NODE', selection=nkeys)
supppots = FixedDisplacement(name='supports', nodes='support_nodes')
s.add_displacement(supppots)
# add materials and sections -----------------------------------------------
E35 = 35 * 10**9
concrete = ElasticIsotropic(name='MAT_CONCRETE', E=E35, v=0.2, p=2400)
s.add_material(concrete)
section = ShellSection(name='SEC_CONCRETE', t=0.020)
s.add_section(section)
prop = ElementProperties(type='SHELL', material='MAT_CONCRETE', section='SEC_CONCRETE', elsets=['ELSET_ALL'])
s.add_element_properties(prop)
# add modal step -----------------------------------------------------------
step = ModalStep(name='modal_analysis', displacements=['supports'], num_modes=num_modes)
s.add_step(step)
fnm = path + 'modal.inp'
ansys.inp_generate(s, filename=fnm)
# temp = path + '_Temp/'
s.analyse(path=path, name='modal.inp', temp=None, software='ansys')
return s
def harmonic_pressure(mesh, pts, freq_list, path, name, damping):
# add shell elements from mesh ---------------------------------------------
s = structure.Structure()
s.add_nodes_elements_from_mesh(mesh, element_type='ShellElement')
s.add_set(name='all_elements', type='element', selection=s.elements.keys())
# add virtual elements -----------------------------------------------------
for fkey in list(mesh.faces()):
face = [
s.check_node_exists(mesh.vertex_coordinates(i))
for i in mesh.face[fkey]
]
s.add_virtual_element(nodes=face, type='FaceElement')
# add displacements --------------------------------------------------------
nkeys = []
for pt in pts:
nkeys.append(s.check_node_exists(pt))
s.add_set(name='support_nodes', type='NODE', selection=nkeys)
supppots = FixedDisplacement(name='supports', nodes='support_nodes')
s.add_displacement(supppots)
# add materials and sections -----------------------------------------------
E35 = 35 * 10**9
concrete = ElasticIsotropic(name='MAT_CONCRETE', E=E35, v=0.2, p=2400)
s.add_material(concrete)
section = ShellSection(name='SEC_CONCRETE', t=0.020)
s.add_section(section)
prop = ElementProperties(name='shell_props',
material='MAT_CONCRETE',
section='SEC_CONCRETE',
elsets=['all_elements'])
s.add_element_properties(prop)
# add loads ----------------------------------------------------------------
load = HarmonicPressureLoad(name='pressureload',
elements=['virtual_elements'],
pressure=3.,
phase=math.pi / 2.)
s.add_load(load)
# add modal step -----------------------------------------------------------
step = HarmonicStep(name='harmonic_analysis',
displacements=['supports'],
loads=['pressureload'],
freq_list=freq_list,
damping=damping)
s.add_step(step)
s.set_steps_order(['harmonic_analysis'])
# analysis -----------------------------------------------------------------
s.path = path
s.name = name
fields = ['all']
s.write_input_file('ansys', fields=fields)
s.analyse(software='ansys', cpus=4)
s.extract_data(software='ansys', fields=fields, steps='last')
return s
def harmonic(geom_file, freq_range, freq_steps, damping):
# add shell elements from mesh ---------------------------------------------
with open(geom_file, 'rb') as fh:
geom_data = json.load(fh)
mesh = Mesh.from_data(geom_data['mesh'])
s = structure.Structure()
s.add_nodes_elements_from_mesh(mesh, element_type='ShellElement')
# add displacements --------------------------------------------------------
pts = geom_data['pts']
nkeys = []
for pt in pts:
nkeys.append(s.check_node_exists(pt))
s.add_set(name='support_nodes', type='NODE', selection=nkeys)
supppots = FixedDisplacement(name='supports', nodes='support_nodes')
s.add_displacement(supppots)
# add materials and sections -----------------------------------------------
E35 = 35 * 10**9
concrete = ElasticIsotropic(name='MAT_CONCRETE', E=E35, v=0.2, p=2400)
s.add_material(concrete)
section = ShellSection(name='SEC_CONCRETE', t=0.020)
s.add_section(section)
prop = ElementProperties(type='SHELL',
material='MAT_CONCRETE',
section='SEC_CONCRETE',
elsets=['ELSET_ALL'])
s.add_element_properties(prop)
# add loads ----------------------------------------------------------------
f_pts = geom_data['f_pts']
nodes = [s.check_node_exists(pt) for pt in f_pts]
s.add_set(name='load_nodes', type='NODE', selection=nodes)
load = PointLoad(name='hload',
nodes='load_nodes',
x=0,
y=0,
z=1,
xx=0,
yy=0,
zz=0)
s.add_load(load)
# add modal step -----------------------------------------------------------
step = HarmonicStep(name='harmonic_analysis',
displacements=['supports'],
loads=['hload'],
freq_range=freq_range,
freq_steps=freq_steps,
damping=damping)
s.add_step(step)
fnm = path + 'harmonic.inp'
ansys.inp_generate(s, filename=fnm)
# temp = path+'_Temp/'
s.analyse(path=path, name='harmonic.inp', temp=None, software='ansys')
return s
def harmonic(mesh, pts, lpts, freq_range, freq_steps, damping, path, filename):
# add shell elements from mesh ---------------------------------------------
s = structure.Structure()
s.add_nodes_elements_from_mesh(mesh, element_type='ShellElement')
# add displacements --------------------------------------------------------
nkeys = []
for pt in pts:
nkeys.append(s.check_node_exists(pt))
s.add_set(name='support_nodes', type='NODE', selection=nkeys)
supports = PinnedDisplacement(name='supports', nodes='support_nodes')
s.add_displacement(supports)
# add materials and sections -----------------------------------------------
E35 = 35 * 10**9
concrete = ElasticIsotropic(name='MAT_CONCRETE', E=E35, v=0.2, p=2400)
s.add_material(concrete)
section = ShellSection(name='SEC_CONCRETE', t=0.050)
s.add_section(section)
prop = ElementProperties(material='MAT_CONCRETE',
section='SEC_CONCRETE',
elsets=['ELSET_ALL'])
s.add_element_properties(prop)
# add loads ----------------------------------------------------------------
nkeys = []
for lpt in lpts:
nkeys.append(s.check_node_exists(lpt))
load = HarmonicPointLoad(name='harmonic_load', nodes=nkeys, z=-1)
s.add_load(load)
# add modal step -----------------------------------------------------------
step = HarmonicStep(name='harmonic_analysis',
displacements=['supports'],
loads=['harmonic_load'],
freq_range=freq_range,
freq_steps=freq_steps,
damping=damping)
s.add_step(step)
fnm = path + filename
ansys.inp_generate(s, filename=fnm, output_path=path)
s.analyse(path=path, name=filename, fields=None, software='ansys')
return s
def modal(mesh, pts, num_modes, path, name):
# add shell elements from mesh ---------------------------------------------
s = structure.Structure(name=name, path=path)
s.add_nodes_elements_from_mesh(mesh, element_type='ShellElement')
# add displacements --------------------------------------------------------
nkeys = []
for pt in pts:
nkeys.append(s.check_node_exists(pt))
s.add_set(name='support_nodes', type='NODE', selection=nkeys)
supports = PinnedDisplacement(name='supports', nodes='support_nodes')
s.add_displacement(supports)
# add materials and sections -----------------------------------------------
E35 = 35 * 10**9
concrete = ElasticIsotropic(name='MAT_CONCRETE', E=E35, v=0.2, p=2400)
s.add_material(concrete)
section = ShellSection(name='SEC_CONCRETE', t=0.050)
s.add_section(section)
prop = ElementProperties(material='MAT_CONCRETE',
section='SEC_CONCRETE',
elsets=['ELSET_ALL'])
s.add_element_properties(prop)
# add modal step -----------------------------------------------------------
step = ModalStep(name='modal_analysis',
displacements=['supports'],
modes=num_modes)
s.add_step(step)
s.set_steps_order(['modal_analysis'])
# analyse ------------------------------------------------------------------
fields = 'all'
s.write_input_file(software='ansys', fields=fields)
s.analyse(software='ansys', cpus=4)
s.extract_data(software='ansys', fields=fields, steps='last')
return s
pts = rs.ObjectsByLayer('pts')
pts = [rs.PointCoordinates(pt) for pt in pts]
nkeys = []
for pt in pts:
nkeys.append(s.check_node_exists(pt))
s.add_set(name='support_nodes', type='NODE', selection=nkeys)
supppots = FixedDisplacement(name='supports', nodes='support_nodes')
s.add_displacement(supppots)
# add materials and sections -----------------------------------------------
E = 40 * 10**9
v = .02
p = 2400
thickness = .02
matname = 'concrete'
concrete = ElasticIsotropic(name=matname, E=E, v=v, p=p)
s.add_material(concrete)
section = ShellSection(name='concrete_sec', t=thickness)
s.add_section(section)
prop = ElementProperties(name='floor',
material=matname,
section='concrete_sec',
elsets=['shell'])
s.add_element_properties(prop)
# add gravity load -------------------------------------------------------------
s.add_load(GravityLoad(name='load_gravity', elements=['shell']))
# add steps --------------------------------------------------------------------
# Structure mdl = Structure(name='beam_bathe', path='C:/Temp/') # Elements rhino.add_nodes_elements_from_layers(mdl, line_type='BeamElement', layers='elset_lines') # Sets rhino.add_sets_from_layers(mdl, layers=['nset_support', 'nset_load']) # Materials mdl.add_material(ElasticIsotropic(name='mat_elastic', E=10**7, v=0.0001, p=1)) # Sections mdl.add_section(RectangularSection(name='sec_rect', b=1, h=1)) # Properties ep = Properties(name='ep', material='mat_elastic', section='sec_rect', elsets='elset_lines') mdl.add_element_properties(ep) # Displacements mdl.add_displacement(FixedDisplacement(name='disp_fixed', nodes='nset_support')) # Loads
mdl = Structure(name='mesh_plate', path='C:/Temp/')
# Elements
rhino.add_nodes_elements_from_layers(mdl,
mesh_type='ShellElement',
layers='elset_mesh')
# Sets
rhino.add_sets_from_layers(mdl,
layers=['nset_load', 'nset_left', 'nset_right'])
# Materials
mdl.add(ElasticIsotropic(name='mat_elastic', E=75 * 10**9, v=0.3, p=2700))
# Sections
mdl.add(ShellSection(name='sec_plate', t=0.020))
# Properties
mdl.add(
Properties(name='ep_plate',
material='mat_elastic',
section='sec_plate',
elset='elset_mesh'))
# Displacements
# Structure
mdl = Structure(name='mesh_modal_from_mesh', path='C:/Temp/')
# Elements
rhino.add_nodes_elements_from_layers(mdl, mesh_type='ShellElement', layers='elset_concrete', pA=100)
rhino.add_nodes_elements_from_layers(mdl, mesh_type='MassElement', layers='elset_mass',pA=1000)
# Sets
rhino.add_sets_from_layers(mdl, layers='nset_pins')
# Materials
mdl.add(ElasticIsotropic(name='mat_concrete', E=40*10**9, v=0.2, p=2400))
# Sections
mdl.add([ShellSection(name='sec_concrete', t=0.250),
MassSection(name='sec_mass')])
# Properties
mdl.add([Properties(name='ep_concrete', material='mat_concrete', section='sec_concrete', elset='elset_concrete'),
Properties(name='ep_mass', section='sec_mass', elset='elset_mass')])
# Displacements
mdl.add(PinnedDisplacement(name='disp_pinned', nodes='nset_pins'))
mdl = Structure(name='beam_bathe', path='C:/Temp/')
# Elements
rhino.add_nodes_elements_from_layers(mdl,
line_type='BeamElement',
layers='elset_beams')
# Sets
rhino.add_sets_from_layers(mdl, layers=['nset_support', 'nset_load'])
# Materials
mdl.add(ElasticIsotropic(name='mat_elastic', E=10**7, v=10**(-5), p=1))
# Sections
mdl.add(RectangularSection(name='sec_beam', b=1, h=1))
# Properties
mdl.add(
Properties(name='ep_beam',
material='mat_elastic',
section='sec_beam',
elset='elset_beams'))
# Displacements
rhino.add_sets_from_layers(mdl, layers=['supports_bot', 'supports_top'])
# Sections
mdl.add_sections([
TrapezoidalSection(name='sec_mushroom', b1=0.001, b2=0.150, h=0.225),
RectangularSection(name='sec_bamboo', b=0.020, h=0.100),
RectangularSection(name='sec_joints', b=0.020, h=0.075)
])
# Materials
fm = [i * 10000 for i in [5, 9, 12, 14, 16, 18, 19, 20, 21, 22]]
em = [0, 0.01, 0.02, 0.03, 0.04, 0.05, 0.06, 0.07, 0.08, 0.09]
mdl.add_materials([
ElasticIsotropic(name='mat_bamboo', E=20 * 10**9, v=0.35, p=1100),
ElasticPlastic(name='mat_mushroom', E=5 * 10**6, v=0.30, p=350, f=fm, e=em)
])
# Properties
s1 = ['struts_mushroom', 'joints_mushroom']
s2 = ['struts_bamboo', 'joints_bamboo']
s3 = ['joints_grid']
mdl.add_element_properties([
Properties(name='ep_mushroom',
material='mat_mushroom',
section='sec_mushroom',
elsets=s1),
Properties(name='ep_bamboo',
material='mat_bamboo',
def compute_compas_fea(file_path, load_path, fea_engine='abaqus', recompute=True):
""" Use abaqus (via compas_fea) to perform elastic FEA on the given frame
under a given load case. If no load path is specified, elemental gravity
will be assumbed to be applied.
Parameters
----------
file_path : string
full path to the frame shape's json file.
load_path : type
full path to the load case's json file.
Returns
-------
nD: dict
Reactional nodal displacement
key is the node id.
value is
(nodal_id, dx, dy, dz, theta_x, theta_y, theta_z).
fR: dict
Fixities reaction force, moment.
key is the nodal id.
value is [Fxyz, Mxyz] in the global axes.
eR: dict
Element-wise reaction force, moment (two ends).
key is the element id.
(Fxyz_1, Mxyz_1, Fxyz_2, Mxyz_2)
"""
root_dir = os.path.dirname(os.path.abspath(__file__))
temp_dir = os.path.join(root_dir, 'compas_fea-temp')
if not os.path.exists(temp_dir):
os.makedirs(temp_dir)
file_json_name = file_path.split(os.sep)[-1]
file_name = file_json_name.split('.')[0]
print('compas_fea initing: file name {}'.format(file_name))
if not recompute:
nD, fR, eR = parse_abaqus_result_json(file_name, temp_dir)
return nD, fR, eR
with open(file_path, 'r') as f:
json_data = json.loads(f.read())
load_json_data = {}
if load_path:
with open(load_path, 'r') as f:
load_json_data = json.loads(f.read())
# init an empty structure
mdl = Structure(name=file_name, path=os.path.join(temp_dir, ''))
# nodes
mdl.add_nodes(nodes=parse_frame_nodes(json_data))
# elements
elements = parse_elements(json_data)
# align local axes with conmech
sc = stiffness_checker(json_file_path=file_path, verbose=False)
e_rot_mats = sc.get_element_local2global_rot_matrices()
assert len(e_rot_mats) == len(elements)
for e, mat in zip(elements, e_rot_mats):
# compas_fea local axis convention is differrent to the one used in conmech:
# in compas_fea
# 'ex' axis represents the cross-section’s major axis
# 'ey' is the cross-section’s minor axis
# 'ez' is the axis along the element
# TODO: this numpy array to list conversion
# is essential to make compas_fea work...
ez = list(mat[0][0:3]) # conmech longitude axis
ex = list(mat[1][0:3]) # conmech cross sec major axis
ey = list(mat[2][0:3]) # conmech cross sec minor axis
mdl.add_element(nodes=e,
type='BeamElement',
axes={'ex': ex, 'ey': ey, 'ez': ez})
# print(mdl.elements[mdl.check_element_exists(nodes=e)])
assert_equal(mdl.element_count(), len(elements))
# Sets
# just convenient aliases for referring to a group of elements
mdl.add_set(name='elset_all', type='element', selection=list(range(mdl.element_count())))
mdl.add_set(name='nset_all', type='node', selection=list(range(mdl.node_count())))
fixities = parse_fixties(json_data)
mdl.add_set(name='nset_fix', type='node', selection=[f[0] for f in fixities])
if load_json_data:
pt_loads, include_sw = parse_load_case(load_json_data)
# mdl.add_set(name='nset_pt_load', type='node', selection=[l[0] for l in pt_loads])
else:
pt_loads = []
include_sw = True
if pt_loads:
mdl.add_set(name='nset_v_load_all', type='node', selection=[pl[0] for pl in pt_loads])
# Materials
# Young’s modulus E [in units of Pa]
# Poisson’s ratio v and density p [kg per cubic metre].
mat_json = json_data['material_properties']
mat_name = 'mat_' + mat_json['material_name']
E_scale = parse_pressure_scale_conversion(mat_json['youngs_modulus_unit'])
p_scale = parse_density_scale_conversion(mat_json['density_unit'])
mdl.add(ElasticIsotropic(name=mat_name,
E=E_scale * mat_json['youngs_modulus'],
v=mat_json['poisson_ratio'],
p=p_scale * mat_json['density']))
# G_scale = parse_pressure_scale_conversion(mat_json['shear_modulus_unit'])
# print('{}, {}'.format(mdl.materials['mat_' + mat_json['material_name']].G, G_scale * mat_json['shear_modulus']))
# assert_almost_equal(mdl.materials['mat_' + mat_json['material_name']].G['G'], G_scale * mat_json['shear_modulus'])
# print('-----------material')
# print(mdl.materials[mat_name])
# Sections
# SI units should be used, this includes the use of metres m for cross-section dimensions, not millimetres mm.
sec_name = 'sec_circ'
mdl.add(CircularSection(name=sec_name, r=parse_circular_cross_sec_radius(json_data)))
# print('-----------cross section')
# print(mdl.sections[sec_name])
# Properties, associate material & cross sec w/ element sets
mdl.add(Properties(name='ep_all', material=mat_name, section=sec_name, elset='elset_all'))
# Displacements
# pin supports
for i, fix in enumerate(fixities):
f_dof = []
for j in range(6):
if fix[j+1] == 1:
f_dof.append(0)
else:
f_dof.append(None)
mdl.add(GeneralDisplacement(name='disp_fix_'+str(i), nodes=[fix[0]], x=f_dof[0], y=f_dof[1], z=f_dof[2], xx=f_dof[3], yy=f_dof[4], zz=f_dof[5]))
# print('-----------fixities')
# for i in range(len(fixities)):
# print(mdl.displacements['disp_fix_'+str(i)])
# Loads
if pt_loads:
mdl.add([PointLoad(name='load_v_'+str(i), nodes=[pl[0]],
x=pl[1], y=pl[2], z=pl[3],
xx=pl[4], yy=pl[5], zz=pl[6])
for i, pl in enumerate(pt_loads)])
if include_sw:
mdl.add(GravityLoad(name='load_gravity', elements='elset_all'))
else:
mdl.add(GravityLoad(name='load_gravity', elements='elset_all'))
# print('-----------loads')
# print(mdl.loads['load_gravity'])
# for i in range(len(pt_loads)):
# print(mdl.loads['load_v_'+str(i)])
# Steps
loads_names = []
if pt_loads:
loads_names.extend(['load_v_'+str(i) for i in range(len(pt_loads))])
if include_sw:
loads_names.append('load_gravity')
mdl.add([
GeneralStep(name='step_bc', displacements=['disp_fix_'+str(i) for i in range(len(fixities))]),
GeneralStep(name='step_loads', loads=loads_names)
])
# a boundary condition step such as 'step_bc' above, should always be applied as the first step to prevent rigid body motion
mdl.steps_order = ['step_bc', 'step_loads']
# Summary
mdl.summary()
# Run
# node
# 'u': nodal displacement: ux, uy, uz, um (magnitude)
# 'ur': nodal rotation
# 'rf': reaction force
# 'cf': concentrated force (external load)
# 'cm': concentrated moment (external load)
# element
# 's': beam stress (conmech cannot compute this at
# version 0.1.1)
# For beam, the following values are evaluated
# at the "integration point" 'ip1' (middle point)
# and pts along the axis: 'sp3, sp7, sp11, sp15'
# sxx: axial
# syy: hoop
# sxy: torsion
# smises: Von Mises
# smaxp: max principal
# sminp: min principal
# 'sf': beam section force
# sf1: axial
# sf2: shear x
# sf3: shear y
if fea_engine == 'abaqus':
mdl.analyse_and_extract(software='abaqus', fields=['u', 'ur', 'rf', 'rm', 'sf'], ndof=6, output=True)
nD, fR, eR = parse_abaqus_result_json(file_name, temp_dir)
elif fea_engine == 'opensees':
mdl.analyse_and_extract(software='opensees', fields=['u'], exe=OPENSEES_PATH, ndof=6, output=True, save=True)
raise NotImplementedError('opensees from compas_fea is not fully supported at this moment...')
nD = {}
fR = {}
eR = {}
# nD = mdl.get_nodal_results(step='step_load', field='ux', nodes='nset_all')
print(mdl.results)
else:
raise NotImplementedError('FEA engine not supported!')
return nD, fR, eR
# For the path in the command below, select the location you prefer
mdl = Structure(name='Nexorades', path='C:/TEMP/')
#-------------------------------------------------------------------------------
# Elements
rhino.add_nodes_elements_from_layers(mdl,
line_type='BeamElement',
layers='elset_beams')
#-------------------------------------------------------------------------------
# Sets
rhino.add_sets_from_layers(mdl, layers=['nset_support', 'nset_load'])
#-------------------------------------------------------------------------------
# Materials
mdl.add(ElasticIsotropic(name='mat_elastic', E=11000000, v=10**(-5), p=0.01))
#-------------------------------------------------------------------------------
# Sections
mdl.add(CircularSection(name='sec_beam', r=0.2))
#-------------------------------------------------------------------------------
# Properties
mdl.add(
Properties(name='ep_beam',
material='mat_elastic',
section='sec_beam',
elset='elset_beams'))
#-------------------------------------------------------------------------------
# Displacements
mdl = Structure(name='mesh_principal', path='C:/Temp/')
# Elements
rhino.add_nodes_elements_from_layers(mdl,
mesh_type='ShellElement',
layers='elset_mesh')
# Sets
rhino.add_sets_from_layers(mdl, layers='nset_pins')
# Materials
mdl.add(ElasticIsotropic(name='mat_elastic', E=10**12, v=0.3, p=1000))
# Sections
mdl.add(ShellSection(name='sec_plate', t=1))
# Properties
mdl.add(
Properties(name='ep_plate',
material='mat_elastic',
section='sec_plate',
elset='elset_mesh'))
# Displacements
#print(len(mdl.sets['mesh_tets'].selection))
# Analyse
zmin, zmax = mdl.node_bounds()[2]
nodes_top = [i for i, node in mdl.nodes.items() if node.z > zmax - 0.010]
nodes_bot = [i for i, node in mdl.nodes.items() if node.z < zmin + 0.010]
mdl.add_set(name='nset_top', type='node', selection=nodes_top)
mdl.add_set(name='nset_bot', type='node', selection=nodes_bot)
#print(mdl.sets['nset_top'])
#print(mdl.sets['nset_bot'])
mdl.add([
ElasticIsotropic(name='mat_elastic', E=50 * 10**9, v=0.3, p=1),
SolidSection(name='sec_solid'),
ElementProperties(name='ep_tets',
material='mat_elastic',
section='sec_solid',
elset='mesh_tets'),
PinnedDisplacement(name='disp_pinned', nodes='nset_bot'),
PointLoad(name='load_top', nodes='nset_top', y=20000, z=10000),
GeneralStep(name='step_bc', displacements='disp_pinned'),
GeneralStep(name='step_load', loads='load_top'),
])
mdl.steps_order = ['step_bc', 'step_load']
mdl.summary()
mdl.analyse_and_extract(software='abaqus', fields=['u', 's'])
Ly = 2
Lz = 1
bmesh = bmesh=draw_plane(Lx=Lx, Ly=Ly, dx=ds, dy=ds)
blender.mesh_extrude(mdl, bmesh=bmesh, layers=int(Lz/ds), thickness=ds, blocks_name='elset_blocks')
# Sets
pins = [[ds, ds, 0], [Lx - ds, ds, 0], [Lx - ds, Ly - ds, 0], [ds, Ly - ds, 0]]
supports = [mdl.check_node_exists(i) for i in pins]
top = [mdl.check_node_exists([Lx * 0.5, Ly * 0.5, Lz])]
mdl.add_set(name='nset_supports', type='node', selection=supports)
mdl.add_set(name='nset_load', type='node', selection=top)
# Materials
mdl.add_material(ElasticIsotropic(name='mat_elastic', E=10**10, v=0.3, p=1))
# Sections
mdl.add_section(SolidSection(name='sec_solid'))
# Properties
mdl.add_element_properties(
Properties(name='ep_solid', material='mat_elastic', section='sec_solid', elsets='elset_blocks'))
# Displacements
mdl.add_displacement(PinnedDisplacement(name='disp_pinned', nodes='nset_supports'))
# Loads
# Elements
rhino.add_nodes_elements_from_layers(mdl,
mesh_type='ShellElement',
layers='elset_mesh')
# Sets
rhino.add_sets_from_layers(mdl,
layers=['nset_load', 'nset_left', 'nset_right'])
# Materials
mdl.add_material(
ElasticIsotropic(name='mat_linear', E=75 * 10**9, v=0.3, p=2700))
# Sections
mdl.add_section(ShellSection(name='sec_plate', t=0.020))
# Properties
ep = Properties(name='ep',
material='mat_linear',
section='sec_plate',
elsets='elset_mesh')
mdl.add_element_properties(ep)
# Displacements
# Structure mdl = Structure(name='truss_tower', path='C:/Temp/') # Elements rhino.add_nodes_elements_from_layers(mdl, line_type='TrussElement', layers='elset_struts') # Sets rhino.add_sets_from_layers(mdl, layers=['nset_pins', 'nset_top']) # Materials mdl.add_material(ElasticIsotropic(name='mat_elastic', E=200*10**9, v=0.3, p=7850)) # Sections mdl.add_section(TrussSection(name='sec_truss', A=0.00010)) # Properties ep = Properties(name='ep_strut', material='mat_elastic', section='sec_truss', elsets='elset_struts') mdl.add_element_properties(ep) # Displacements mdl.add_displacement(PinnedDisplacement(name='disp_pinned', nodes='nset_pins')) # Loads
mdl = Structure(name='mesh_strip', path='C:/Temp/')
# Elements
rhino.add_nodes_elements_from_layers(mdl,
mesh_type='ShellElement',
layers='elset_mesh')
# Sets
rhino.add_sets_from_layers(mdl,
layers=['nset_left', 'nset_right', 'nset_middle'])
# Materials
mdl.add_material(ElasticIsotropic(name='mat_alu', E=75 * 10**9, v=0.3, p=2700))
# Sections
mdl.add_section(ShellSection(name='sec_plate', t=0.001))
# Properties
ep = Properties(name='ep_plate',
material='mat_alu',
section='sec_plate',
elsets='elset_mesh')
mdl.add_element_properties(ep)
# Displacements
# Structure mdl = Structure(name='beam_shell_rhino', path='C:/Temp/') # Elements layers = ['beams', 'shell'] rhino.add_nodes_elements_from_layers(mdl, line_type='BeamElement', mesh_type='ShellElement', layers=layers) # Sets rhino.add_sets_from_layers(mdl, layers=['supports']) # Materials mdl.add(ElasticIsotropic(name='mat_1', E=20*10**9, v=0.3, p=1500)) mdl.add(ElasticIsotropic(name='mat_2', E=30*10**9, v=0.3, p=1500)) # Sections mdl.add(RectangularSection(name='bsec', b=0.1, h=.2)) mdl.add(Properties(name='ep_1', material='mat_1', section='bsec', elsets=['beams'])) mdl.add(ShellSection(name='ssec', t=.1)) mdl.add(Properties(name='ep_2', material='mat_2', section='ssec', elsets=['shell'])) # Displacements mdl.add([FixedDisplacement(name='supports', nodes='supports')]) # Loads
# Extrude
nz = 20
rhino.mesh_extrude(mdl,
guid=rs.ObjectsByLayer('base_mesh'),
layers=nz,
thickness=1. / nz,
blocks_name='elset_blocks')
# Sets
rhino.add_sets_from_layers(mdl, layers=['nset_load', 'nset_supports'])
# Materials
mdl.add(ElasticIsotropic(name='mat_elastic', E=10**(10), v=0.3, p=1))
# Sections
mdl.add(SolidSection(name='sec_solid'))
# Properties
mdl.add(
Properties(name='ep_solid',
material='mat_elastic',
section='sec_solid',
elset='elset_blocks'))
# Displacements
mdl = Structure(name='mesh_principal', path='C:/Temp/')
# Elements
rhino.add_nodes_elements_from_layers(mdl,
mesh_type='ShellElement',
layers='elset_mesh')
# Sets
rhino.add_sets_from_layers(mdl, layers=['nset_corners'])
# Materials
mdl.add_material(
ElasticIsotropic(name='mat_elastic', E=100 * 10**9, v=0.3, p=1000))
# Sections
mdl.add_section(ShellSection(name='sec_plate', t=0.010))
# Properties
ep = Properties(name='ep_plate',
material='mat_elastic',
section='sec_plate',
elsets='elset_mesh')
mdl.add_element_properties(ep)
# Displacements
mdl = Structure(name='beam_simple', path=compas_vibro.TEMP + '/')
# Elements
filepath = os.path.join(compas_vibro.DATA, 'network_10x10.json')
network = Network.from_json(filepath)
mdl.add_nodes_elements_from_network(network=network,
element_type='BeamElement',
elset='elset_lines',
axes={'ex': [0, 0, 1]})
# Materials
mdl.add(ElasticIsotropic(name='mat_elastic', E=20 * 10**9, v=0.3, p=1500))
# Sets
mdl.add_set(name='load_pts', selection=[15, 14], type='node')
# Section
mdl.add(CircularSection(name='cirsec', r=.05))
mdl.add(
Properties(name='ep',
material='mat_elastic',
section='cirsec',
elset='elset_lines'))
# Displacements
# Elements
blender.add_nodes_elements_from_layers(mdl,
line_type='TrussElement',
layers=[0])
# Sets
blender.add_elset_from_bmeshes(mdl, layer=0, name='elset_struts')
blender.add_nset_from_objects(mdl, layer=1, name='nset_pins')
blender.add_nset_from_objects(mdl, layer=2, name='nset_top')
# Materials
mdl.add_material(
ElasticIsotropic(name='mat_elastic', E=200 * 10**9, v=0.3, p=7850))
# Sections
mdl.add_section(TrussSection(name='sec_truss', A=0.00010))
# Properties
ep = Properties(name='ep_strut',
material='mat_elastic',
section='sec_truss',
elsets='elset_struts')
mdl.add_element_properties(ep)
# Displacements