Contact — Nonmatching Conservation

Unilateral, frictional, sliding, or interference-contact verification. Checks: global conservation and mesh-bias sensitivity.

Tolerance:

5%

Problem statement

Geometry

Repeat uniform-patch and Hertz cases with interface ratios 1:1, 2:3, 3:5, and swapped master/slave surfaces.

Material

Constitutive or analytical definition: Global equilibrium and virtual-work consistency; no independent pointwise analytic pressure for arbitrary nonmatching meshes.

Boundary conditions

Required solver capability: nonmatching_contact_or_mortar. Use the loading/path control stated in the setup and preserve the complete response history.

Measured quantity

Total force and moment are conserved; solution changes only by discretization error; master/slave swap converges to the same limit.

WebCAE Terminal

units mm
material E=1000 nu=0.3
import path="nonmatching_master.step" format=step
material E=1000 nu=0.3
import path="nonmatching_slave.step" format=step
contact frictionless
mesh tet size=2.0 order=1 bonding=0
fix surface number 1
fix surface number 3 component=x
fix surface number 3 component=y
load surface number 2 force=-100 component=z
solve
minmax reaction_force

Results comparison

Updated: 2026-10-19 · WebCAE solver