Contact Between Two Cubes

Description

A cube is pushed against another cube as shown by 4 X 106 psi. Calculate the maximum displacement.

File Name

Browse to drive letter:\Users\Public\Public Documents\SOLIDWORKS\SOLIDWORKS version\samples\Simulation Examples\Verification\Nonlinear_Static_5.SLDASM and open the file.

Study Type

Nonlinear.

Mesh Type

Solid mesh.

Meshing Parameters

Use Coarse mesh with element size 0.3106 in.

Material Model

Linear elastic isotropic.

Material Properties

Modulus of elasticity = 3 X 107 psi, Poisson's ratio = 0.

Restraints and Loads

The back face of the larger cube is fixed. Right and bottom faces of the two cubes are prevented from moving in their normal directions. A pressure is applied incrementally on the free face of the smaller cube according to the following time curve:

Results

Use a deformation scale factor of 1.0 to plot results on the deformed shape. Animate the results to see how the two cubes move together after contact.

The linear theoretical elastic maximum displacement is calculated as U = PL1/(A1E1) + PL2/(A2E2), where the subscripts refer to cubes 1 and 2. L is the length, A is the area (A=L2) and E is the Modulus of elasticity.

  Maximum Displacement (UZ, inch)
Linear Theory 0.22857
SOLIDWORKS Simulation (Node to node) 0.2124
SOLIDWORKS Simulation (Node to surface) 0.2123