Home / Examples / Stress Analysis [Galileo] / Example 25 Cylinder under Fixed Normal Displacement Subjected to Thermal Load

Example 25 Cylinder under Fixed Normal Displacement

General

• The model is a cylinder stuck longitudinally with two materials that have different coefficients of linear thermal expansion.
  The cylinder is subjected to a thermal load with the side face fixed in the perpendicular direction to its surface and freed in a parallel direction.
   

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

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

• Obtain this session's project file. (Right-click and choose 'Save link as')




• Results will vary depending on Femtet version and the PC environment.

 

Analysis Space

Item	Settings
Analysis Space	3D
Model Unit	mm

 

Analysis Conditions

The temperature is applied evenly on the model.

Select Thermal load and set the reference temperature and the reached temperature.

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

Item	Settings
Solver	Stress Analysis [Galileo]
Analysis Type	Static Analysis
Options	Select Thermal Load

 

The Step/Thermal Load tab is set as follows.

Tab	Setting Item	Settings
Step/Thermal Load	Reference Temperature	0 [deg]
	Step/Reached Temperature Setting	Step 1: 300 [deg]

Model

The cylinder's top and bottom faces are fixed in all directions. The side is fixed in normal displacement.

The upper and lower bodies have different coefficients of linear thermal expansion.

Body Attributes and Materials

Body Number/Type	Body Attribute Name	Material Name
0/Solid	Body1	Mat1
1/Solid	Body2	Mat2

 

The material properties are set up as follows:

Material Name	Tab	Properties
Mat1	Coefficient of Linear Thermal Expansion	0X10-6 [1/deg]
	Elasticity	Young's Modulus: 1x109 [Pa] Poisson's Ratio: 0.3
Mat2	Coefficient of Linear Thermal Expansion	400X10-6 [1/deg]
	Elasticity	Young's Modulus: 1x109 [Pa] Poisson's Ratio: 0.3

Boundary Conditions

Boundary Condition Name/Topology	Tab	Boundary Condition Type	Settings
Fix/Face	Mechanical	Displacement	Select all X/Y/Z components. UX=0, UY=0, UZ=0
SlideFree/Face	Mechanical	Normal Displacement	0.0X10-3 [m]

Results

The Z-direction displacement is shown below by contour. The scale adjustment is actual scale.

Body2 is pushing up Body1.

 

The section at XZ plane is shown below.

The border has been moved upward maintaining the same orientation and shape.