4.15.1.3. J2PlasticityΒΆ
- nDMaterial('J2Plasticity', matTag, K, G, sig0, sigInf, delta, H)
This command is used to construct an multi dimensional material object that has a von Mises (J2) yield criterium and isotropic hardening.
matTag
(int)integer tag identifying material
K
(float)bulk modulus
G
(float)shear modulus
sig0
(float)initial yield stress
sigInf
(float)final saturation yield stress
delta
(float)exponential hardening parameter
H
(float)linear hardening parameter
The material formulations for the J2Plasticity object are:
'ThreeDimensional'
'PlaneStrain'
'Plane Stress'
'AxiSymmetric'
'PlateFiber'
J2 isotropic hardening material class
Elastic Model
Yield Function
Saturation Isotropic Hardening with linear term
Flow Rules
Linear Viscosity
Backward Euler Integration Routine Yield condition enforced at time n+1
set \(\eta\) = 0 for rate independent case