Constitutive Law module.

Constitutive Law (`fedoo.constitutivelaw`)

The constitutive law module include several classical mechancical constitutive laws. These laws are required to create some weak formulations.

The ConstitutiveLaw library contains the following classes:

Solid mechanical constitutive laws

These laws should be associated with fedoo.weakform.StressEquilibrium

`ElasticIsotrop`(E, nu[, name])	A simple linear elastic isotropic constitutive law defined from a Yound Modulus and a Poisson Ratio.
`ElasticOrthotropic`(Ex, Ey, Ez, Gyz, Gxz, ...)	Linear Orthotropic constitutive law defined from the engineering coefficients in local material coordinates.
`ElasticAnisotropic`(H[, name])	Linear full Anistropic constitutive law defined from the rigidity matrix H.
`CompositeUD`([Vf, E_f, E_m, nu_f, nu_m, ...])	Linear Orthotropic constitutive law defined from composites phase parameters, assuming uniform unidirectional fibers.
`ElastoPlasticity`(YoungModulus, PoissonRatio, ...)	Elasto-Plastic constitutive law.
`FE2`(assemb[, name])	ConstitutiveLaw that solve a Finite Element Problem at each point of gauss in the contexte of the so called "FE²" method.
`Simcoon`(umat_name, props[, name])	Constitutive laws from the simcoon library.

These laws should be associated with fedoo.weakform.StressEquilibrium

`CohesiveLaw`([GIc, SImax, KI, GIIc, SIImax, ...])	Bilinear cohesive Law based on the Crisfield model
`Spring`([Kx, Ky, Kz, name])	Simple directional spring connector between nodes or surfaces

These laws should be associated with fedoo.weakform.InterfaceForce

`BeamProperties`(material, A, Jx, Iyy, Izz[, ...])
`BeamCircular`(material, r[, k, name])
`BeamPipe`(material, r_int, r_ext[, k, name])
`BeamRectangular`(material, a[, b, k, name])

These laws should be associated with fedoo.weakform.PlateEquilibrium

`ShellLaminate`(listMat, listThickness[, k, name])
`ShellHomogeneous`(MatConstitutiveLaw, thickness)

ThermalProperties(thermal_conductivity, ...)