# make an instance of the stucture object - - - - - - - - - - - - - - - - - - -
s = Structure(path, name)
# add nodes and elements from mesh - - - - - - - - - - - - - - - - - - - - - - -
s.add_nodes_elements_from_mesh(mesh, 'ShellElement', elset='shell')
# add displacements - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
d = FixedDisplacement('boundary', mesh.vertices_on_boundary())
s.add(d)
# add loads - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
load = PointLoad(name='pload', nodes=[100], x=0, y=0, z=1, xx=0, yy=0, zz=0)
s.add(load)
# add sections - - - - - - - - - - - -
section = ShellSection('shell_sec', t=.1)
s.add(section)
# add material - - - - - -
material = ElasticIsotropic('concrete', E=30e9, v=.2, p=2400)
s.add(material)
# add element properties - - - - - - - - -
el_prop = ElementProperties('concrete_shell',
material='concrete',
section='shell_sec',
elset='shell')
s.add(el_prop)
# add analysis frequencies - - - - - - - -
freq_list = range(20, 200, 2)
# s.add(d)
bv = {
vk
for fk in mesh.faces_where({'is_boundary': True})
for vk in mesh.face_vertices(fk)
}
d = FixedDisplacement('boundary', list(bv))
s.add(d)
# add loads - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
load = PointLoad(name='pload', nodes=[100], x=0, y=0, z=1, xx=0, yy=0, zz=0)
s.add(load)
# add sections - - - - - - - - - - - -
section = ShellSection('thin_sec', t=.1)
s.add(section)
section = ShellSection('thick_sec', t=.2)
s.add(section)
# add sets - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
fins = list(mesh.faces_where({'is_fin': True}))
no_fins = list(mesh.faces_where({'is_fin': False}))
s.add_set('fins', 'element', fins)
s.add_set('no_fins', 'element', no_fins)
# add material - - - - - -
material = ElasticIsotropic('concrete', E=30e9, v=.2, p=2400)
s.add(material)
# add element properties - - - - - - - - -