Week 9 Tension and Torsion test challenge

OBJECTIVE:

• To Set up the model for Tension and Torsional test by Explicit dynamics analysis system

Steps for Tension test:

Import geometry:-

• Open the Explicit Dynamics Analysis system
• Import Steel 1006 material from engineering data resources>Explicit materials
  
• Open the model in Space claim to see for any abnormalities

Mechanical workbench:-

• Rename the model if needed
• Change the material to Steel 1006
  

Create New co-ordinate systems:-

• Create two new co ordinate system on the two faces of specimen, lkie shown below
  
  
  

Mesh:-

• Insert Method and type as tetrahedron for whole body
• Do face sizing for both the end of the model
  
• Same like above do the face sizing to the both ends
• Meshed model is shown in below image
  

Analysis Setting:-

• Define end time as 1E-03
• Do not change any other options

Define Load :-

• Insert a displacement load on one end
  
• Insert a Fixed support on the other face

Output request:-

• We need solutions for total deformation , Equivalent stress and temperatue
• After the simulation is done select solution and go to worksheet
• From the worksheet list right click on temperature>user defined results
• Evaluate result for the same, you will have temperature output

Steps for Trosion Test:

Duplicate:-

• Duplicate the tension test and rename it as Torsion test
• Change few steps in existinf set up to perform this test

Create Co-ordinate system:

• Apart from the existing co-ordinate system creat new co-ordinate system of cylindrical type
  

Mesh:-

• Perform a Face sizing on the filleted area of the model with 1.5mm element size
• Perform a Face sizing in the below shown region with global cordinate system
  
• Meshed model is shown below
  

Define load:-

• There should be a change displacement load, like shown below
  
  
  
• Same output request for thus test also

RESULTS:

Tension test:-

• Total Deformation
  
  
• Equivalent Stress
  
  
  
  
• Temperature
  
  

Torsion test:-

• Total Deformation
  
  
• Equivalent Stress
  
  
  
• Temperature
  
  

• Test	Total deformation(mm)	Equivalent Stress(Mpa)	Temperature(degree celsius)
  Tension	18.004	630.45	268.44
  Torsion	19.381	564	467.88

CONCLUSION:

• From the above results we can see the temperature is more in Torsional stress
• The stress Generated in Tension test is more
• In tension test the necking has happened there is no fracture in this case
• In torsion test the fracture of the model has been occured
• The material used is ductile material, this material holds good for tension test and it comparitively soon fails in shear ad torsion stress
• So by looking at the results we got a satisfying output