UniaxialMaterial Command

This command is used to construct a UniaxialMaterial object which represents uniaxial stress-strain (or force-deformation) relationships.

uniaxialMaterial matType? arg1? ...

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The type of material created and the additional arguments required depends on the matType? provided in the command.

NOTE:

The valid queries to any uniaxial material when creating an ElementRecorder are 'strain,' 'stress,' and 'tangent.' Some materials have additional queries to which they will respond. These are documented in the NOTES section for those materials.

The following contain information about matType? and the args required for each of the available material types:

• Elastic Uniaxial Material
• Elastic-Perfectly Plastic Material
• Elastic-Perfectly Plastic Gap Material
• Elastic-No Tension Material
• Parallel Material
• Series Material
• Hardening Material
• Concrete01 Material -- Zero Tensile Strength
• Concrete02 Material -- Linear Tension Softening
• Steel01 Material
• Steel02 Material -- Giuffré-Menegotto-Pinto Model with Isotropic Strain Hardening
• Hysteretic Material
• Viscous Material
• BARSLIP Material
• Bond_SP01 - - Strain Penetration Model for Fully Anchored Steel Reinforcing Bars
• Concrete04 Material -- Popovics Concrete Material
• Concrete07 – Chang & Mander’s 1994 Concrete Model
• Fatigue Material
• Hyperbolic Gap Material
• Limit State Material
• PINCHING4 Material
• Reinforcing Steel Material
• SelfCentering Material

The following commands that are used to construct uniaxial materials for p-y, t-z and q-z elements for modeling soil-structure interaction.

• PySimple1 Material
• TzSimple1 Material
• QzSimple1 Material
• PyLiq1 Material
• TzLiq1 Material