4.13.3.2. Elastic-Perfectly Plastic Material¶

uniaxialMaterial('ElasticPP', matTag, E, epsyP, epsyN=epsyP, eps0=0.0)

This command is used to construct an elastic perfectly-plastic uniaxial material object.

`matTag` (int)	integer tag identifying material
`E` (float)	tangent
`epsyP` (float)	strain or deformation at which material reaches plastic state in tension
`epsyN` (float)	strain or deformation at which material reaches plastic state in compression. (optional, default is tension value)
`eps0` (float)	initial strain (optional, default: zero)