VUVISCOSITY

This problem contains basic test cases for one or more Abaqus elements and features.

The following topics are discussed:

Elements tested
Features tested
Problem description
Results and discussion
Input files

ProductsAbaqus/Explicit

Elements tested

C3D8R

CPE4R

Features tested

User subroutine to define the viscosity for equation of state models with viscous shear behavior.

Problem description

This test verifies that the user-defined viscosity in user subroutine VUVISCOSITY is transferred properly to the solution process. The finite element model consists of a C3D8R element and a CPE4R element with identical material properties. The viscous properties of the material are defined with a Cross viscosity model that is implemented as a user-defined viscosity. For comparison purposes, a duplicate set of elements with equivalent viscosity definitions is included to provide a reference solution.

Results and discussion

In each case the results in the testing element match the solution in the reference element.

Input files

cross_vuviscosity.inp: Cross viscosity model, shear test.
cross_vuviscosity.f: User subroutine VUVISCOSITY used in cross_vuviscosity.inp.