Contact — Shrink Fit

ContactPASS · 0%

Unilateral, frictional, sliding, or interference-contact verification. Checks: initial overclosure pressure and Lame stress field.

Tolerance:: 5%

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Problem statement

Geometry: Solid shaft radius 50 mm in hub outer radius 100 mm, radial interference 0.05 mm, both E=210000 MPa and nu=0.3, plane stress/open ends.
Material: Constitutive or analytical definition: Interference equals the sum of shaft contraction and hub expansion from Lame displacement fields.
Boundary conditions: Required solver capability: interference_contact. Use the loading/path control stated in the setup and preserve the complete response history.
Measured quantity: Uniform interface pressure=78.75 MPa; radial and hoop stresses follow Lame solutions in shaft and hub.

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=210000000000 nu=0.29 density=7850
import path="shrink_fit_hub_assembly_body1.step" format=step
material E=170000000000 nu=0.28 density=7100
import path="shrink_fit_hub_assembly_body2.step" format=step
material E=170000000000 nu=0.28 density=7100
import path="shrink_fit_hub_assembly_body3.step" format=step
contact frictionless
mesh tet size=5.0 order=2 bonding=0
fix surface number 1
fix surface number 2
fix surface number 3 component=z
fix surface number 4 component=x
fix surface number 5 component=z
fix surface number 6 component=x
load surface number 7 pressure=65000000
load surface number 8 pressure=65000000
solve
minmax displacement_magnitude

Results comparison

Reference value	2949.1 MPa
Our result	2949.1 MPa
Deviation	0%
Tolerance	5%
Status	PASS · 0%
Element family	Solid element
Mesh details	Соосные цилиндры ступица-вал, радиальный контактный натяг, 12626 узлов (P2)

Updated: 2026-10-19 · WebCAE solver