Example9 Bimetal under Multi-Step Thermal Load

General

  • The bimetal of Exercise 7 is subjected to the multi-step thermal load.
    Multi-step thermal load analysis is performed.
     

  • The deformation, the displacement and the mechanical stress are solved.
     

  • Unless specified in the list below, the default conditions will be applied.
     

 

Analysis Space

Item

Settings

Analysis Space

3D

Model unit

mm

 

Analysis Conditions

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

Solver

Mechanical Stress Analysis [Galileo]

Analysis Type

Static analysis

Options

Select “Thermal load”.

The Step/Thermal Load tab is set as follows.

In this setting, thermal load analysis is performed with 4 reached temperatures step by step.

 

Tabs

Setting Item

Settings

Step/Thermal Load

Step Setting

Multi-step thermal load analysis

Reference temperature

25[deg]

Step/Reached Temperature Setting

Step

Substeps

Reached temperature [deg]

1

1

75

2

1

50

3

1

0

4

1

-25

 

Model

The same as Exercise 7.

Body Attributes and Materials

Body Number/Type

Body Attribute Name

Material Name

0/Solid

CU_PLATE

008_Cu *

1/Solid

SUS_PLATE

518_SUS410 *

* Available from the Material DB

Boundary Conditions

N/A

Results

The deformation at each step is shown below. The contour are the Z displacement.

The scale adjustment is 45. The maximum and minimum values of the color bar are 27[um] and -27[um] respectively.

 

Reached temperature 75[deg]:

 

Reached temperature 50[deg]:

 

Reached temperature 0[deg]:

 

Reached temperature -25[deg]:

The bimetal arches in the opposite direction as the temperature goes lower.