Transferring results with viscoelasticity

Elements tested

C3D8R
CPE4R
CPS4R
CAX4R
S4R
M3D4R
SAX1
B31
T3D2

Problem description

The verification tests in this section consist of one-element relaxation tests with viscoelastic materials and involve transferring results between Abaqus/Standard and Abaqus/Explicit, from one Abaqus/Standard analysis to another Abaqus/Standard analysis, or from one Abaqus/Explicit analysis to another Abaqus/Explicit analysis. Both small- and finite-strain time domain viscoelasticity with all possible stress states are tested. For finite-strain viscoelasticity the polynomial, Ogden, Marlow, Van der Waals, and Arruda-Boyce forms of strain energy potentials as well as hyperfoams are considered. The elements are loaded in tension or shear followed by relaxation at constant strain. The tests are performed for different combinations of the import capability. The results are transferred at the end of the first step of the original analysis, and relaxation is allowed to continue in the import analysis.

Results and discussion

The results demonstrate that the viscoelastic material model is transferred successfully between Abaqus analyses. The relaxation behavior of the material after import is consistent with the original analysis, where relaxation is allowed to continue in a second step for the same amount of time as the import analysis.

Input files

Transferring results from Abaqus/Standard to Abaqus/Explicit:

sx_s_visco_elas.inp: Abaqus/Standard analysis, viscoelasticity with the linear elastic material model.
sx_x_visco_elas_ny.inp: Abaqus/Explicit import analysis, UPDATE=NO, STATE=YES.
sx_x_visco_elas_yy.inp: Abaqus/Explicit import analysis, UPDATE=YES, STATE=YES.
sx_x_visco_elas_yn.inp: Abaqus/Explicit import analysis, UPDATE=YES, STATE=NO.
sx_s_visco_poly.inp: Abaqus/Standard analysis, viscoelasticity with the polynomial hyperelastic material model.
sx_x_visco_poly_ny.inp: Abaqus/Explicit import analysis, UPDATE=NO, STATE=YES.
sx_x_visco_poly_yy.inp: Abaqus/Explicit import analysis, UPDATE=YES, STATE=YES.
sx_x_visco_poly_yn.inp: Abaqus/Explicit import analysis, UPDATE=YES, STATE=NO.
sx_s_visco_ogden.inp: Abaqus/Standard analysis, viscoelasticity with the Ogden hyperelastic material model.
sx_x_visco_ogden_ny.inp: Abaqus/Explicit import analysis, UPDATE=NO, STATE=YES.
sx_x_visco_ogden_yy.inp: Abaqus/Explicit import analysis, UPDATE=YES, STATE=YES.
sx_x_visco_ogden_yn.inp: Abaqus/Explicit import analysis, UPDATE=YES, STATE=NO.
sx_s_marlow_visco.inp: Abaqus/Standard analysis, viscoelasticity with the Marlow hyperelastic material model.
sx_x_visco_marlow_ny.inp: Abaqus/Explicit import analysis, UPDATE=NO, STATE=YES.
sx_x_visco_marlow_yy.inp: Abaqus/Explicit import analysis, UPDATE=YES, STATE=YES.
sx_x_visco_marlow_yn.inp: Abaqus/Explicit import analysis, UPDATE=YES, STATE=NO.
sx_s_visco_vanderwaals.inp: Abaqus/Standard analysis, viscoelasticity with the Van der Waals hyperelastic material model.
sx_x_visco_vanderwaals_ny.inp: Abaqus/Explicit import analysis, UPDATE=NO, STATE=YES.
sx_x_visco_vanderwaals_yy.inp: Abaqus/Explicit import analysis, UPDATE=YES, STATE=YES.
sx_x_visco_vanderwaals_yn.inp: Abaqus/Explicit import analysis, UPDATE=YES, STATE=NO.
sx_s_visco_arruda.inp: Abaqus/Standard analysis, viscoelasticity with the Arruda-Boyce hyperelastic material model.
sx_x_visco_arruda_ny.inp: Abaqus/Explicit import analysis, UPDATE=NO, STATE=YES.
sx_x_visco_arruda_yy.inp: Abaqus/Explicit import analysis, UPDATE=YES, STATE=YES.
sx_x_visco_arruda_yn.inp: Abaqus/Explicit import analysis, UPDATE=YES, STATE=NO.
sx_s_visco_hyperfoam.inp: Abaqus/Standard analysis, viscoelasticity with the hyperfoam material model.
sx_x_visco_hyperfoam_ny.inp: Abaqus/Explicit import analysis, UPDATE=NO, STATE=YES.
sx_x_visco_hyperfoam_yy.inp: Abaqus/Explicit import analysis, UPDATE=YES, STATE=YES.
sx_x_visco_hyperfoam_yn.inp: Abaqus/Explicit import analysis, UPDATE=YES, STATE=NO.
sx_s_visco_prony6.inp: Abaqus/Standard analysis, viscoelasticity with six Prony series terms.
sx_x_visco_prony6_ny.inp: Abaqus/Explicit import analysis, UPDATE=NO, STATE=YES.
sx_x_visco_prony6_yy.inp: Abaqus/Explicit import analysis, UPDATE=YES, STATE=YES.
sx_x_visco_prony6_yn.inp: Abaqus/Explicit import analysis, UPDATE=YES, STATE=NO.

Transferring results from Abaqus/Explicit to Abaqus/Standard:

xs_x_visco_elas.inp: Abaqus/Explicit analysis, viscoelasticity with the linear elastic material model.
xs_s_visco_elas_ny.inp: Abaqus/Standard import analysis, UPDATE=NO, STATE=YES.
xs_s_visco_elas_yy.inp: Abaqus/Standard import analysis, UPDATE=YES, STATE=YES.
xs_s_visco_elas_yn.inp: Abaqus/Standard import analysis, UPDATE=YES, STATE=NO.
xs_x_visco_poly.inp: Abaqus/Explicit analysis, viscoelasticity with the polynomial hyperelastic material model.
xs_s_visco_poly_ny.inp: Abaqus/Standard import analysis, UPDATE=NO, STATE=YES.
xs_s_visco_poly_yy.inp: Abaqus/Standard import analysis, UPDATE=YES, STATE=YES.
xs_s_visco_poly_yn.inp: Abaqus/Standard import analysis, UPDATE=YES, STATE=NO.

Transferring results from one Abaqus/Standard analysis to another Abaqus/Standard analysis:

ss_visco_elas.inp: Abaqus/Standard analysis, viscoelasticity with the linear elastic material model.
ss_i_visco_elas_ny.inp: Abaqus/Standard import analysis, UPDATE=NO, STATE=YES.
ss_i_visco_elas_yy.inp: Abaqus/Standard import analysis, UPDATE=YES, STATE=YES.
ss_i_visco_elas_yn.inp: Abaqus/Standard import analysis, UPDATE=YES, STATE=NO.
ss_visco_poly.inp: Abaqus/Explicit analysis, viscoelasticity with the polynomial hyperelastic material model.
ss_i_visco_poly_ny.inp: Abaqus/Standard import analysis, UPDATE=NO, STATE=YES.
ss_i_visco_poly_yy.inp: Abaqus/Standard import analysis, UPDATE=YES, STATE=YES.
ss_i_visco_poly_yn.inp: Abaqus/Standard import analysis, UPDATE=YES, STATE=NO.

Transferring results from one Abaqus/Explicit analysis to another Abaqus/Explicit analysis:

xx1_visco_aniso.inp: Abaqus/Explicit analysis, viscoelasticity with the linear elastic anisotropic material.
xx2_visco_aniso_ny.inp: Abaqus/Explicit import analysis, UPDATE=NO, STATE=YES.
xx1_visco_ortho.inp: Abaqus/Explicit analysis, viscoelasticity with the linear elastic orthotropic material.
xx2_visco_ortho_ny.inp: Abaqus/Explicit import analysis, UPDATE=NO, STATE=YES.