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OpenSees AMI

Hardening

Description

The Hardening material is a model of one-dimensional plasticity and can be used anywhere a UniaxialMaterial object is expected in OpenSees. The Hardening material model is appropriate for bilinear hysteretic response in a variety of contexts such as steel stress-strain response and elastoplastic force-deformation and moment-rotation response in spring and link elements.

Syntax

ops.uniaxialMaterial('Hardening',tag,E,Fy,Hiso,Hkin)

Parameters

• tag : integer Unique material identifer
• E : float Elastic modulus
• Fy : float Initial yield stress
• Hiso : float Isotropic hardening modulus
• Hkin : float Kinematic hardening modulus

Optional Parameters

None

Notes

None

Examples

ops.uniaxialMaterial('Hardening',1,29000,50,0,300)

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