This option is used to define a nonlinear, small-strain elastic material.
Product: ABAQUS/Standard
Type: Model data
Level: Model
Include this parameter if the moduli are defined in user subroutine UHYPEL. Omit this parameter if the moduli are defined on the data lines.
First line:
Instantaneous Young's modulus, .
Instantaneous Poisson's ratio, .
First strain invariant, .
Second strain invariant, .
Third strain invariant, .
Repeat this data line as often as necessary to define the variation of the moduli with the strain invariants.