Home / Examples / Stress Analysis [Galileo] / Example 2: Disc under Distributed Load

Example 2: Disc under Distributed Load

General

• Distributed load is applied to a metal disc with its peripheral fixed.
   

• 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

This is a static analysis.

Item	Settings
Solver	Stress Analysis [Galileo]
Analysis Type	Static Analysis
Options	N/A

Model

The disc is a low-height cylindrical solid body. The material is copper.

Distributed load boundary condition is applied on the top face. The edge topology around the bottom face is fixed in Z direction.

Body Attributes and Materials

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

* Available from the material DB

Boundary Conditions

The value of the distributed load is set such that a total of 10 kgf is applied to the top face of the disc.
Face area: (23.5/2)2x3.14=433.5 mm2

Total load: 10x9.8 = 98 N

Distributed load: total load / tip area = 2.26x105 N/ｍ2 (=Pa)

Boundary Condition Name/Topology	Tab	Boundary Condition Type	Settings
FIX/Edge	Mechanical	Displacement	Select the Z component. UZ=0
LOAD/Face	Mechanical	Distributed Face Load	X=0, Y=0, Z=-2.26x105 [Pa]

Results

The contour diagram shows the Z displacement.

The center area is sinking approximately 7 um.

 

The vectors of the stress are shown below.

The upper side is getting the tensile stress, whereas the lower side is getting the compressive stress.

 

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

 

The reactive force at FIX is a total of 98 [N] in +Z direction.

The external force at LOAD is a total of 98 [N] in -Z direction.