fedoo.constitutivelaw.ElasticAnisotropic

class ElasticAnisotropic(H, name='')

Linear full Anistropic constitutive law defined from the rigidity matrix H.

The constitutive Law should be associated with fedoo.weakform.StressEquilibrium

Parameters:

• H (list of list or an array (shape=(6,6)) of scalars or arrays of gauss point values.) – The rigidity matrix. If H is a list of gauss point values, the shape shoud be H.shape = (6,6,NumberOfGaussPoints)

• name (str, optional) – The name of the constitutive law

Notes

H is interpreted in the slot ordering documented on fedoo.core.mechanical3d.Mechanical3D. In 2Daxi, slot 2 is the hoop direction (not Cartesian z): rows/columns labelled “3” of H apply to the hoop response. Define the rigidity matrix accordingly, or use a local frame.

__init__(H, name='')

Methods

ElasticAnisotropic.get_H_plane_stress(H)	Convert a full 3D tangent matrix H in an equivalent behavior in 2D with the plane stress assumption.
ElasticAnisotropic.get_all()	Return a dict with all the known ConstitutiveLaw (with a name).
ElasticAnisotropic.get_current_local_frame([...])	Return the trial material frame in global coordinates.
ElasticAnisotropic.get_elastic_matrix([...])
ElasticAnisotropic.get_local_frame([assembly])	Return material frames, resolved at assembly Gauss points.
ElasticAnisotropic.get_local_rotation([...])	Return a Simcoon rotation for the requested material frame.
ElasticAnisotropic.get_stress_from_strain(...)
ElasticAnisotropic.get_tangent_matrix(assembly)
ElasticAnisotropic.global2local_H(H[, ...])	Rotate a global stiffness to material axes using Simcoon.
ElasticAnisotropic.global2local_rotation_increment(DR)	Express a finite rotation increment in the initial material basis.
ElasticAnisotropic.global2local_strain(strain)	Express engineering-strain vector(s) from global to material axes.
ElasticAnisotropic.global2local_stress(stress)	Express stress Voigt vector(s) from global to material axes.
ElasticAnisotropic.global2local_tensor(tensor)	Change both axes of 3x3 tensor fields to the initial material basis.
ElasticAnisotropic.initialize(assembly, pb)	Initialize the constitutive law for the current problem.
ElasticAnisotropic.local2global_H(H[, ...])	Rotate a material stiffness to global axes using Simcoon.
ElasticAnisotropic.local2global_strain(strain)	Express engineering-strain vector(s) from material to global axes.
ElasticAnisotropic.local2global_stress(stress)	Express stress Voigt vector(s) from material to global axes.
ElasticAnisotropic.reset()	Reset the constitutive law.
ElasticAnisotropic.set_density(density)	Set the mass density associated with this mechanical material.
ElasticAnisotropic.set_local_frame(local_frame)	Define the material coordinate frame.
ElasticAnisotropic.set_start(assembly, pb)	Begin a new time iteration.
ElasticAnisotropic.to_start(assembly, pb)	Restart the current time iteration.
ElasticAnisotropic.update(assembly, pb)	Update the constitutive law for the current problem state.

ElasticAnisotropic.is_isotropic
ElasticAnisotropic.manages_material_frame
ElasticAnisotropic.name	Name of the constitutive law.
ElasticAnisotropic.is_initialized	Tag set to True once the law is intialized.