.. include:: sub.txt ================== Hardening Material ================== .. function:: uniaxialMaterial('Hardening', matTag, E, sigmaY, H_iso, H_kin, eta=0.0) :noindex: This command is used to construct a uniaxial material object with combined linear kinematic and isotropic hardening. The model includes optional visco-plasticity using a Perzyna formulation. =================================== =========================================================================== ``matTag`` |int| integer tag identifying material ``E`` |float| tangent stiffness ``sigmaY`` |float| yield stress or force ``H_iso`` |float| isotropic hardening Modulus ``H_kin`` |float| kinematic hardening Modulus ``eta`` |float| visco-plastic coefficient (optional, default=0.0) =================================== =========================================================================== .. seealso:: `Notes `_