Damage and fracture — Cohesive Bilinear
Damage and fracturePASS · 0%Damage, cohesive-zone, fracture-mechanics, or crack-growth verification. Checks: damage initiation softening and complete decohesion.
- Tolerance:
- 5%
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Open & Solve in BrowserProblem statement
- Geometry
- Zero-thickness interface: K=10000 MPa/mm, T0=10 MPa at delta0=0.001 mm, linear softening to zero at deltaf=0.01 mm.
- Material
- Constitutive or analytical definition: Piecewise linear traction-separation; Gc is the triangular area T0 deltaf/2.
- Boundary conditions
- Required solver capability: cohesive_traction_separation. Use the loading/path control stated in the setup and preserve the complete response history.
- Measured quantity
- Gc=0.05 N/mm; traction at delta=0.005 mm is 5.55555555556 MPa; traction at deltaf is zero.
WebCAE Terminal
Paste these commands into the Terminal panel inside WebCAE. They use the same text DSL as the application; run one command per line:
units mm
material E=200000 nu=0.3
cohesive bilinear K=10000 T0=10 deltaf=0.01
interface surface number 1 surface number 2 law=cohesive
fix surface number 3
prescribe surface number 4 displacement=0.005
solve nonlinear method=newton steps=10Results comparison
| Reference value | Gc=0.0500 N/mm, T(0.005)=5.5556 MPa |
| Our result | Gc=0.0500 N/mm, T(0.005)=5.5556 MPa |
| Deviation | 0% |
| Tolerance | 5% |
| Status | PASS · 0% |
| Mesh details | Zero-thickness cohesive interface, bilinear traction-separation law |
Updated: 2026-10-27 · version not recorded