Home / Examples / Stress Analysis [Galileo] / Example 8: Bar Fixed at Both Ends Subjected to Thermal Load

Example 8: Bar Fixed at Both Ends Subjected to Thermal Load

General

A bar fixed at both ends is subjected to thermal load.
The deformation, the displacement distribution, and the stress distribution are solved.
Unless specified in the list below, the default conditions will be applied.

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.

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	Stress Analysis [Galileo]
Analysis Type	Static Analysis
Options	Select Thermal Load

The Step/Thermal Load tab is set as follows.

Tabs	Setting Item	Settings
Step/Thermal Load	Reference Temperature	25 [deg]
Step/Thermal Load	Step/Reached Temperature Setting	Step 1: 60 [deg]

Model

The bar is a solid body made of copper. The face topologies of the both ends are fixed in Y direction.

Body Attributes and Materials

Body Number/Type	Body Attribute Name	Material Name
0/Solid	CU_BLOCK	008_Cu *

* Available from the material DB

Boundary Conditions

Boundary Condition Name/Topology

Tab

Boundary Condition Type

Settings

FIX_Y1/Face

Mechanical

Displacement

Select the Y component.

UY=0

FIX_Y2/Face

Mechanical

Displacement

Select the Y component.

UY=0

Results

The displacement vectors are shown. The color scale indicates the magnitude of displacement.

The deformation is exhibited only in the XZ directions as the Y direction is fixed at the ends.

The vectors of the stress are shown below.

There are no stresses exhibited in the XZ directions as the bar can expand freely in those directions, whereas the tensile stresses are exhibited in the Y direction as it is fixed in that direction.

The external force and reactive force are listed in the table below.

The reactive force at FIX_Y1 is a total of 71 [N] in +Y direction.

The reactive force at FIX_Y2 is a total of 71 [N] in -Y direction.