3.1.7.1. Elastic Isotropic Material

This command is used to construct an ElasticIsotropic material object.

nDMaterial ElasticIsotropic $matTag $E $v <$rho>

Argument	Type	Description
$matTag	integer	unique tag identifying material
$E	float	elastic Modulus
$v	float	Poisson’s ratio
$rho	float	mass density. optional default = 0.0.

Note

The material formulations for the ElasticIsotropic object are “ThreeDimensional,” “PlaneStrain,” “Plane Stress,” “AxiSymmetric,” and “PlateFiber.”

3.1.7.1.1. Formulations

A linear isotropic function can be expressed in terms of two parameters \(\lambda\) and \(\mu\) as follows []:

\[\boldsymbol{S}\]

Code Developed by: Michael H. Scott