Week 9 Tension and Torsion test challenge
Tension and Torsion test using Explicit dynamics in ANSYS WORKBENCH.
Objective:
To perform the tension and torsion test on the specimen provided.
For the tension test, displace one end of the specimen to 18mm while keeping the other fixed.
For the torsion test, displace one end of the specimen to an angle of 1200 degree.
Aim is to find results for total deformation, equivalent stress and temperature of the specimen .
Geometry:
Material:
Mesh:
for tensile test;
no of nodes:835
no of elements:3147
for torsion test;
no of nodes:1922
no of elements:8231
Bounndary Conditions:
For Tensile test;
For tensile test the speciman is fixed at faces B as shown in above image and a displacement of 18mm is provided on A end of the speciman in the positive direction of X-axis.
For Torsion Test;
an angular displacement of 1200 degree is provided to face A in the direction cylindrical Y-axis and the speciman is fixed at face B.
Analysis Settings:
The end time is kept to be 1.e-003
Results:
Tensile Test;
Total deformation:
Equivalent stress:
Temperature:
For Torsion Test;
Total deformation:
Equivalent stress:
Temperature:
Conclusion:
tabular representation for both the tests is displayed below;
| Analysis | Tension Test | Torsion Test |
| Max Total deformation | 18.001mm | 13.814mm |
| Max Equivalent stress | 545.14 MPa | 569.12 MPa |
| Max Temperature | 275.14 degree C | 425.32 degree C |
- From the above results, we can conclude that the failure of the specimen in Tension Test is due to permanent
deformation due to elongation and sue to neck generation. This concludes that failure of the Specimen is due
to max Tensile Stress. - Failure of the Specimen in the Torsion Test shows, the flat failure surface. This concludes that failure is due to
Max. Shear Stress. Also it is ductile material, which indicates the failure in the Plane of maximum sheer stress
perpendicular to the axis of the Specimen. - Also we can see that Temperature in Torsion Test is very high due to high sheer stress.