Thermal Stress - Temperature-Dependent Properties

Description

A plate is made of two different materials as shown in the figure. The plate thickness is 0.1". Determine the thermal stresses due to temperature changes of 100 ºF and 200 ºF. The full model is shown below:

The following figure depicts the loads and restraints applied to the half model.

File Name

Browse to drive letter:\Users\Public\Public Documents\SOLIDWORKS\SOLIDWORKS version\samples\Simulation Examples\Verification\Nonlinear_Static_4.SLDASM and open the file.

Study Type

Nonlinear.

Mesh Type

Solid mesh.

Meshing Parameters

Use a Global Size of 0.5".

Material Model

Linear elastic isotropic material with temperature dependency.

Material Properties

Poisson's ratio = 0, Coefficient of thermal expansion = 1 X 10^-5 /ºF. Modulus of elasticity for part 1 of the plate is = 3 X 10⁷ psi. The modulus of elasticity of part 2 is temperature-dependent as follows:

Restraints and Loads

Due to symmetry, only one half of the plate is modeled. The right face of the plate is simply supported and the back faces are restrained in the Z-direction. The lower right edge is restrained in the Y-direction.

Two uniform changes in temperature (ΔT₁ = 100 ºF and ΔT₂ = 200 ºF) have been applied, one at a time, to both parts of the model. Each temperature rise followed the time curve shown below:

Results

The results from the above curve are in agreement with analytical results.