Example43 Frictional Contact (#1)

General

  • A block pressed onto a plate is analyzed. The contact is with friction.
     

  • The deformation due to the friction can be observed.
     

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

 

 

Analysis Space

Item

Settings

Analysis Space

3D

Model unit

mm

 

 

Analysis Conditions

Item

Settings

Solvers

Mechanical Stress Analysis [Galileo]

Analysis Type

Static analysis

Model

A polyethylene block is pressed onto a copper plate whose bottom face is fixed.

The contact face is set with “simple contact” boundary condition. 

Body Attributes and Materials

Body Number/Type

Body Attribute Name

Material Name

0/Solid Body

Plate

008_Cu

1/Solid Body

Block

000_Polyethylene(PE)

The material properties are based on the Material DB.

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

Move/Face

Mechanical

Displacement

Select all X/Y/Z components.

UX=0.2×10^-3

UY=0.0

UZ=0.05×10^-3

Contact/Face

Mechanical

Simple contact

Simple Contact Classification: Automatic judgment

Coefficient of friction: 0.4

Results

The displacement diagram is shown below. The color gradation contour indicates the X displacement.

The lower part of Block is dragged to the negative X direction.

 

Vectors of the principal stress are shown below.

The minimum principal stress is inclined towards the friction direction.

 

The figure below is when the friction is nil.

The minimum principal stress is not inclined because there is no friction.

The dragging is not observed either.