Surface-to-surface approach for finite-sliding contact

Elements tested

C3D4
C3D8
CPE4H
CPE8H
GK3D6
S4R5
CGAX3T
STRI65

S4R
B31
C3D8R

Features tested

Surface-to-surface contact with finite sliding.

Problem description

This section deals with finite-sliding surface-to-surface contact involving stress/displacement elements. The tests utilize different surface behavior and surface interactions with the surface-to-surface approach for modeling finite-sliding contact. The tests also illustrate examples in which different facet types are involved for main and secondary surfaces.

Results and discussion

These results illustrate the accuracy and the robustness of the surface-to-surface formulation for finite-sliding contact.

Input files

Slider example:

slider_cpe4h_surf.inp: CPE4H elements modeling a slider with surface-to-surface contact.
slider_cpe8h_mpc_surf.inp: CPE8H elements modeling a slider with surface-to-surface contact.
gasket_surf.inp: GK3D6 elements contacting a slider using surface-to-surface contact.
slide-shells_surf.inp: STRI65 elements modeling a slider with surface-to-surface contact.
edg1s4r5_surf.inp: S4R5 elements modeling a slider with surface-to-surface contact.

Examples for facet type of the main surface different from the secondary:

beam-shell_surf.inp: Beam with B31 elements sliding on a shell surface with S4R elements modeled using surface-to-surface contact.
slide-shell-on-solid_surf.inp: S4R slider in contact with C3D8R element-based surface modeled using surface-to-surface contact.

Compressing and twisting one three-dimensional block on another:

block_c3d4_a_surf.inp: C3D4 elements using surface-to-surface contact.
block_c3d4_b_surf.inp: C3D4 elements using surface-to-surface contact and the unsymmetric solver to handle additional compression.
block_c3d8_a_surf.inp: C3D8 elements using surface-to-surface contact.
block_c3d8_b_surf.inp: C3D8 elements using surface-to-surface contact and the unsymmetric solver to handle additional compression.

Examples using the “path-based” tracking algorithm:

rollcyl_test.inp: Paper rolling model using double-sided shell and discrete rigid surfaces.
block_c3d8_b_surf_ntrack.inp: Compressed and twisted blocks.