Surface-based tie constraint

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

This page discusses:

ProductsAbaqus/StandardAbaqus/Explicit

Elements tested

  • AC2D3
  • AC2D4
  • AC2D4R
  • AC2D6
  • AC2D8
  • AC3D4
  • AC3D5
  • AC3D6
  • AC3D8
  • AC3D8R
  • AC3D10
  • AC3D15
  • AC3D20
  • ACAX3
  • ACAX4
  • ACAX4R
  • ACAX6
  • ACAX8
  • C3D4
  • C3D8
  • C3D8R
  • C3D10
  • C3D10M
  • C3D4T
  • C3D6T
  • C3D8RT
  • C3D8P
  • C3D8T
  • C3D8PT
  • C3D10MP
  • C3D15
  • C3D20
  • C3D20E
  • C3D20P
  • CAX4
  • CAX4R
  • CAX4T
  • CAX8
  • CAX3T
  • CAX8T
  • CPE3
  • CPE4R
  • CPE3T
  • CPE4
  • CPE4P
  • CPE6
  • CPE6MP
  • CPE8
  • CPE8P
  • CPS3T
  • CPS4
  • CPS4R
  • CPS8
  • DC3D8
  • DC3D8E
  • DCAX4
  • DS4
  • DSAX1
  • DSAX2
  • MAX2
  • R2D2
  • R3D4
  • B21
  • B31
  • PIPE21
  • PIPE31
  • M3D4R
  • S3RT
  • S4
  • S4R
  • S4RT
  • S4T
  • S8RT
  • SAX1
  • SAX2
  • SAX2T
  • SC6RT
  • SC8RT

Features tested

The surface-based tie constraint is tested for a number of general cases and for the special case of acoustic-structural coupling.

Problem description

These tests verify the performance of the surface-based tie constraint for various analyses using acoustic, continuum, and shell elements with the surfaces defined in different ways.

Results and discussion

The results for the general cases indicate that the surfaces can be adjusted and tied appropriately.

In the suite of coupled acoustic-structural input files each of the acoustic element types is tested in both secondary and main roles, tied to main surfaces formed of solid continuum elements of similar interpolation order. In addition, the suite includes input files testing the quadratic acoustic element types in the secondary role, with linear solid continuum elements forming the main surfaces. The results indicate that the fluid-solid coupling functions correctly.

Input files

Abaqus/Standard input files

xtie_solid.inp

Tie solid elements with surfaces defined in different ways.

xtie_solid_combine.inp

Tie solid elements with surfaces combined.

xtie_shell.inp

Tie shell elements with surfaces defined in different ways.

xtie_shell_norot.inp

Tie shell elements with surfaces defined in different ways. The rotational degrees of freedom are not tied.

xtie_shell_beam.inp

Tie beam and shell elements together.

xtie_solid_shell.inp

Tie solid and shell elements together.

xtie_shell_shell.inp

Tie two shell elements that are perpendicular to each other.

xtie_shell_shell_norot.inp

Tie two shell elements that are perpendicular to each other. The rotational degrees of freedom are not tied.

xtie_shell_shell_nothick.inp

Tie two shell elements that are perpendicular to each other without accounting for the shell thickness.

xtie_shell_shell_offset.inp

Tie shell elements defined using shell offset.

xtie_c3d20_c3d8.inp

Tie second-order and first-order solid elements together.

xtie_cax4_sax1.inp

Tie first-order axisymmetric solid and shell elements together.

xtie_cax8_sax2.inp

Tie second-order axisymmetric solid and shell elements together.

xtie_r2d2.inp

Tie two-dimensional solid elements to a surface defined by a rigid element.

xtie_r3d4.inp

Tie three-dimensional solid elements to a surface defined by a rigid element.

xtie_rigid2d.inp

Tie two-dimensional solid elements to an analytical rigid surface.

xtie_rigid3d.inp

Tie three-dimensional solid elements to an analytical rigid surface.

xtie_elec_heat.inp

Tie elements in a coupled electrical-heat analysis.

xtie_shell_axisy_heat.inp

Tie two axisymmetric shell elements in a heat transfer analysis.

xtie_shell_heat.inp

Tie two shell elements in a heat transfer analysis.

xtie_shell_solid_axisy_heat.inp

Tie axisymmetric shell and solid elements together in a heat transfer analysis.

xtie_shell_solid_heat.inp

Tie shell and solid elements together in a heat transfer analysis.

xtie_shell_axisy_couple.inp

Tie axisymmetric shell elements in a coupled thermal-stress analysis.

xtie_shell_couple.inp

Tie two shell elements in a coupled thermal-stress analysis.

xtie_shell_solid_axisy_couple.inp

Tie axisymmetric shell and solid elements together in a coupled thermal-stress analysis.

xtie_shell_solid_couple.inp

Tie shell and solid elements together in a coupled thermal-stress analysis.

xtie_s4t.inp

Tie S4T elements together in a coupled thermal-stress analysis.

xtie_s4rt.inp

Tie S4RT elements together in a coupled thermal-stress analysis.

xtie_s3rt.inp

Tie S3RT elements together in a coupled thermal-stress analysis.

xtie_cpe3t.inp

Tie CPE3T elements together in a coupled thermal-stress analysis.

xtie_cps3t.inp

Tie CPS3T elements together in a coupled thermal-stress analysis.

xtie_cax3t.inp

Tie CAX3T elements together in a coupled thermal-stress analysis.

xtie_c3d4t.inp

Tie C3D4T elements together in a coupled thermal-stress analysis.

xtie_c3d6t.inp

Tie C3D6T elements together in a coupled thermal-stress analysis.

xtie_sc6rt.inp

Tie SC6RT elements together in a coupled thermal-stress analysis.

xtie_sc8rt.inp

Tie SC8RT elements together in a coupled thermal-stress analysis.

xtie_cpe4p.inp

Tie CPE4P elements with the surfaces defined in different ways.

xtie_cpe8p.inp

Tie CPE8P elements with the surfaces defined in different ways.

xtie_cpe6mp.inp

Tie CPE6MP elements with the surfaces defined in different ways.

xtie_c3d8p.inp

Tie C3D8P elements with the surfaces defined in different ways.

xtie_c3d10mp.inp

Tie C3D10MP elements with the surfaces defined in different ways.

xtie_c3d20p.inp

Tie C3D20P elements with the surfaces defined in different ways.

xtie_piezo.inp

Tie continuum and piezoelectric elements.

xtie_rigid_couple.inp

Tie a three-dimensional element to a rigid surface in a coupled thermal-stress analysis.

xtie_analyt_rigid_couple.inp

Tie a three-dimensional element to an analytical rigid surface in a coupled thermal-stress analysis.

xtie_solid_2d_2ties.inp

Use two pairs of tie constraints in two dimensions.

xtie_solid_3d_5ties.inp

Use five pairs of tie constraints in three dimensions.

xtie_cax8t_sax2t_cax8t.inp

Tie a SAX2T element with two CAX8T elements in a coupled thermal-stress analysis.

xtie_cax8_max2_cax8.inp

Tie a MAX2 element with two CAX8 elements.

xtie_isolated_nodes.inp

Tie two-dimensional elements to isolated nodes.

ec234afat.inp

AC2D3 and CPS4 elements in a coupled acoustic-solid analysis.

ec244afat.inp

AC2D4 and CPS4 elements in a coupled acoustic-solid analysis.

ec264afat.inp

AC2D6 and CPS4 elements in a coupled acoustic-solid analysis (acoustic secondary-only case).

ec268afat.inp

AC2D6 and CPS8 elements in a coupled acoustic-solid analysis.

ec284afat.inp

AC2D8 and CPS4 elements in a coupled acoustic-solid analysis (acoustic secondary-only case).

ec288afat.inp

AC2D8 and CPS8 elements in a coupled acoustic-solid analysis.

ec348afat.inp

AC3D4 and C3D8 elements in a coupled acoustic-solid analysis.

ec358afat.inp

AC3D5 and C3D8 elements in a coupled acoustic-solid analysis.

ec368afat.inp

AC3D6 and C3D8 elements in a coupled acoustic-solid analysis.

ec388afat.inp

AC3D8 and C3D8 elements in a coupled acoustic-solid analysis.

ec3a8afat.inp

AC3D10 and C3D8 elements in a coupled acoustic-solid analysis (acoustic secondary-only case).

ec3afafat.inp

AC3D10 and C3D15 elements in a coupled acoustic-solid analysis.

ec3f8afat.inp

AC3D15 and C3D8 elements in a coupled acoustic-solid analysis (acoustic secondary-only case).

ec3ffafat.inp

AC3D15 and C3D15 elements in a coupled acoustic-solid analysis.

ec3k8afat.inp

AC3D20 and C3D8 elements in a coupled acoustic-solid analysis (acoustic secondary-only case).

ec3kkafat.inp

AC3D20 and C3D20 elements in a coupled acoustic-solid analysis.

eca34afat.inp

ACAX3 and CAX4 elements in a coupled acoustic-solid analysis.

eca44afat.inp

ACAX4 and CAX4 elements in a coupled acoustic-solid analysis.

eca64afat.inp

ACAX6 and CAX4 elements in a coupled acoustic-solid analysis (acoustic secondary-only case).

eca68afat.inp

ACAX6 and CAX8 elements in a coupled acoustic-solid analysis.

eca84afat.inp

ACAX8 and CAX4 elements in a coupled acoustic-solid analysis (acoustic secondary-only case).

eca88afat.inp

ACAX8 and CAX8 elements in a coupled acoustic-solid analysis.

tie_moddyn_ac2d3.inp

AC2D3 and CPS4R elements in a coupled acoustic-solid analysis using the DYNAMIC and MODAL DYNAMIC analysis types.

tie_moddyn_ac2d4.inp

AC2D4 and CPS4R elements in a coupled acoustic-solid analysis using the DYNAMIC and MODAL DYNAMIC analysis types.

tie_moddyn_ac3d4.inp

AC3D4 and C3D8R elements in a coupled acoustic-solid analysis using the DYNAMIC and MODAL DYNAMIC analysis types.

tie_moddyn_ac3d5.inp

AC3D5 and C3D8R elements in a coupled acoustic-solid analysis using the DYNAMIC and MODAL DYNAMIC analysis types.

tie_moddyn_ac3d6.inp

AC3D6 and C3D8R elements in a coupled acoustic-solid analysis using the DYNAMIC and MODAL DYNAMIC analysis types.

tie_moddyn_ac3d8.inp

AC3D8 and C3D8R elements in a coupled acoustic-solid analysis using the DYNAMIC and MODAL DYNAMIC analysis types.

tie_moddyn_acax3.inp

ACAX3 and CAX4R elements in a coupled acoustic-solid analysis using the DYNAMIC and MODAL DYNAMIC analysis types.

tie_moddyn_acax4.inp

ACAX4 and CAX4R elements in a coupled acoustic-solid analysis using the DYNAMIC and MODAL DYNAMIC analysis types.

tie_shell_cgax4.inp

Test tie between SAX1 element and CGAX4 element for rotation when the secondary and main surfaces are apart.

tie_beam_cps4.inp

Test tie between B21 element and CPS4 element for rotation when the secondary and main surfaces are apart.

tie_beam_memb.inp

Test tie between B31 element and M3D4 element for rotation when the secondary and main surfaces are apart.

tie_beam_surf.inp

Test tie between B31 element and SFM3D4 element for rotation when the secondary and main surfaces are apart.

tie_cps4_beam.inp

Test tie between CPS4 element and B21 element when CPS4 is the main and the secondary and main surfaces are apart.

tie_cax4_shell.inp

Test tie between SAX1 element and CAX4 element when CAX4 is the main and the secondary and main surfaces are apart.

tie_c3d8_shell.inp

Test tie between C3D8 element and S4R element when C3D8 is the main and the secondary and main surfaces are apart.

tie_shell_shell_constraint.inp

Test tie between S4R element and S4R element when the CONSTRAINT RATIO parameter is specified.

tie_acoinf_edge.inp

Test edge-to-edge tie for ACIN3D4 elements.

tie_memb_memb_edge.inp

Test edge-to-edge tie for M3D4 elements.

tie_memb_rigid_edge.inp

Test edge-to-edge tie between M3D4 and R3D4 elements.

tie_shell_shell_edge.inp

Test edge-to-edge tie for S8R elements.

tie_surf_surf_edge.inp

Test edge-to-edge tie for SFM3D4 elements.

ctp_tie.inp

Test surface tie for C3D8PT elements.

ctp_tie_nodesurf.inp

Test nodal surface tie for C3D8PT elements.

Abaqus/Explicit input files

xtie_xpl_solid.inp

Tie solid elements with surfaces defined in different ways.

xtie_xpl_c3d8.inp

Tie C3D8 elements with surfaces defined in different ways.

xtie_xpl_sc8rt_couple.inp

Tie SC8RT elements with surfaces defined in different ways.

xtie_xpl_solid_ss.inp

Same as xtie_xpl_solid.inp except surface-to-surface tie formulation is used.

xtie_xpl_shell.inp

Tie shell elements with surfaces defined in different ways.

xtie_xpl_shell_s4.inp

Tie S4 elements with surfaces defined in different ways.

xtie_xpl_shell_ss.inp

Same as xtie_xpl_shell.inp except surface-to-surface tie formulation is used.

xtie_xpl_shell_norot.inp

Tie shell elements with surfaces defined in different ways. The rotational degrees of freedom are not tied.

xtie_xpl_solid_shell.inp

Tie solid and shell elements together.

xtie_xpl_solid_shell_ss.inp

Same as xtie_xpl_solid_shell.inp except surface-to-surface tie formulation is used.

xtie_xpl_shell_shell.inp

Tie two shell elements that are perpendicular to each other.

xtie_xpl_shell_shell_norot.inp

Tie two shell elements that are perpendicular to each other. The rotational degrees of freedom are not tied.

xtie_xpl_shell_shell_nothick.inp

Same as xtie_xpl_shell_shell.inp except thickness is not considered in the tie constraints.

xtie_xpl_shell_shell_ss_nothick.inp

Same as xtie_xpl_shell_shell.inp except surface-to-surface tie formulation is used and thickness is not considered in the tie constraints.

xtie_xpl_shell_cratio.inp

Tie two shell elements that are not adjusted. The rotational degrees of freedom are not tied and a constraint ratio value is prescribed.

xtie_xpl_cax4_sax1.inp

Tie first-order axisymmetric solid and shell elements together.

xtie_xpl_beam.inp

Tie beam elements together.

xtie_xpl_beamsolid.inp

Tie beam and solid elements together.

xtie_xpl_beamshell.inp

Tie beam and shell elements together.

xtie_xpl_beammembrane.inp

Tie beam and membrane elements together.

xtie_xpl_pipe.inp

Tie pipe elements together.

xtie_xpl_pipesolid.inp

Tie pipe and solid elements together.

xtie_xpl_pipeshell.inp

Tie pipe and shell elements together.

xtie_xpl_pipemembrane.inp

Tie pipe and membrane elements together.

xtie_xpl_r2d2.inp

Tie two-dimensional solid elements to a surface defined by a rigid element.

xtie_xpl_r3d4.inp

Tie three-dimensional solid elements to a surface defined by a rigid element.

xtie_xpl_rigid2d.inp

Tie two-dimensional solid elements to an analytical rigid surface.

xtie_xpl_rigid3d.inp

Tie three-dimensional solid elements to an analytical rigid surface.

xtie_xpl_rigrig2d.inp

Tie two-dimensional rigid bodies.

xtie_xpl_rigrig3d.inp

Tie three-dimensional rigid bodies.

xtie_xpl_solid_couple.inp

Tie three-dimensional solid elements in a coupled thermal-stress analysis.

xtie_xpl_rigid_couple.inp

Tie a three-dimensional element to a rigid surface in a coupled thermal-stress analysis.

xtie_xpl_analyt_rigid_couple.inp

Tie a three-dimensional element to an analytical rigid surface in a coupled thermal-stress analysis.

xtie_xpl_solid_2d_2ties.inp

Use two pairs of tie constraints in two dimensions.

xtie_xpl_solid_2d_2ties_ss.inp

Same as xtie_xpl_solid_2d_2ties.inp except surface-to-surface tie formulation is used.

xtie_xpl_solid_3d_5ties.inp

Use five pairs of tie constraints in three dimensions.

xtie_xpl_solid_3d_5ties_ss.inp

Same as xtie_xpl_solid_3d_5ties.inp except surface-to-surface tie formulation is used.

xtie_xpl_shell_3d_4ties.inp

Use four pairs of tie constraints to tie five shells in three dimensions.

xtie_xpl_isolated_nodes.inp

Tie two-dimensional elements to isolated nodes.

xtie_xpl_ac2d3.inp

AC2D3 and CPS4R elements in a coupled acoustic-solid analysis.

xtie_xpl_ac2d4.inp

AC2D4R and CPS4R elements in a coupled acoustic-solid analysis.

xtie_xpl_ac3d4.inp

AC3D4 and C3D8R elements in a coupled acoustic-solid analysis.

xtie_xpl_ac3d6.inp

AC3D6 and C3D8R elements in a coupled acoustic-solid analysis.

xtie_xpl_ac3d8.inp

AC3D8R and C3D8R elements in a coupled acoustic-solid analysis.

xtie_xpl_acax3.inp

ACAX3 and CAX4R elements in a coupled acoustic-solid analysis.

xtie_xpl_acax4.inp

ACAX4R and CAX4R elements in a coupled acoustic-solid analysis.