Example20 Two Plates Adhered at One End (Simple Contact #2)

General

This is similar to Exercise 19, but the material of both plates is the same. They are adhered only at one end instead of both ends.
The simple contact boundary condition is set on the inner faces of the plates. The deformation caused by thermal load is solved.
The deformation, the displacement and the mechanical stress are solved.
Unless specified in the list below, the default conditions will be applied.

The temperature is applied evenly on the model.

Opt for the thermal load in the analysis condition, and set the reference temperature and the reached temperature.

There is no need to couple with the thermal analysis [Watt].

Item	Settings
Solvers	Mechanical Stress Analysis [Galileo]
Analysis Type	Static analysis
Options	Select “Thermal load”.

The Step/Thermal Load tab is set as follows.

Analysis is performed with the reached temperature of 0 deg.

Tab	Setting Item	Settings
Step/Thermal Load	Reference temperature	25[deg]
Step/Thermal Load	Step/Reached Temperature Setting	Step 1: 0[deg]

Two plates, PLATE1 and PLATE2, have the same coefficient of expansion, while that is doubled for the joint material, EDGE.

The material properties are set up as follows:

MAT2 has very different coefficient of (thermal) expansion from MAT1.

Material Name	Tab	Properties
MAT1	Elasticity	Young’s modulus: 10×10^9[Pa] Poisson’s ratio: 0.3
MAT1	Coefficient of Expansion	5×10^-6[1/deg]
MAT2	Elasticity	Young’s modulus: 10×10^9[Pa] Poisson’s ratio: 0.3
MAT2	Coefficient of Expansion	10×10^-6[1/deg]

Boundary Condition Name/Topology	Tab	Boundary Condition Type	Settings
CONTACT/Face	Mechanical	Simple contact	Simple Contact Classification : Automatic Judgment

The Z-direction displacement is shown below by contour. The contour are the Z displacement.

At lower temperature, the joint material shrinks more than the plates. As a result, the other ends of the plates open.

The vectors of mechanical stress around EDGE are shown below.

EDGE is getting the tensile stress, whereas the plates are getting the compression stress.