Hardening Material

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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.

uniaxialMaterial Hardening $matTag $E $sigmaY $H_iso $H_kin <$eta>

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$matTag	integer tag identifying material
$E	tangent stiffness
$sigmaY	yield stress or force
$H_iso	isotropic hardening Modulus
$H_kin	kinematic hardening Modulus
$eta	visco-plastic coefficient (optional, default=0.0)

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Code Developed by: Micheal H. Scott, Oregon State University

Image Developed by: Silvia Mazzoni