Initial Strain Material

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This command is used to construct an Initial Strain material object. The stress-strain behaviour for this material is defined by another material. Initial Strain Material enables definition of initial strains for the material under consideration. The stress that corresponds to the initial strain will be calculated from the other material.

uniaxialMaterial InitStrainMaterial $matTag $otherTag $initStrain

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$matTag	integer tag identifying material
$otherTag	tag of the other material
$initStrain	initial strain

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NOTE:

Initial strain is positive if it introduces element shortening and is negative if it introduces element elongation.