UANISOHYPER_STRAIN

User subroutine to define anisotropic hyperelastic material behavior based on Green strain.

User subroutine UANISOHYPER_STRAIN:

  • can be used to define the strain energy potential of anisotropic hyperelastic materials as a function of the components of the Green strain tensor;

  • is called at all material calculation points of elements for which the material definition contains user-defined anisotropic hyperelastic behavior with a Green strain-based formulation (Anisotropic hyperelastic behavior);

  • can include material behavior dependent on field variables or state variables;

  • requires that the values of the derivatives of the strain energy density function of the anisotropic hyperelastic material be defined with respect to the components of the modified Green strain tensor; and

  • is called twice per material point in each iteration.

The following topics are discussed:

Related Topics
In Other Guides
Anisotropic hyperelastic behavior
*ANISOTROPIC HYPERELASTIC
UANISOHYPER_INV and VUANISOHYPER_INV

ProductsAbaqus/Standard