UTRS

User subroutine to define a reduced time shift function for a viscoelastic material.

User subroutine UTRS:

  • can be used to define a temperature-time shift for a time domain viscoelastic analysis;

  • will be called for all material points of elements for which a user-defined shift function is specified to define the time-temperature correspondence as part of the viscoelastic material definition;

  • will be called before user subroutine UMATHT and/or user subroutine HETVAL if either or both are to be used with UTRS in a fully coupled temperature-displacement or a coupled thermal-electrical-structural analysis;

  • can use and update solution-dependent state variables; and

  • can be used in conjunction with user subroutine USDFLD to redefine any field variables before they are passed in.

The following topics are discussed:

Related Topics
In Other Guides
Time domain viscoelasticity
*TRS
*VISCOELASTIC
Transient thermal loading of a viscoelastic slab

ProductsAbaqus/Standard