Week 9 Tension and Torsion test challenge

TENSION AND TORSION TEST

OBJECTIVES

For this challenge, we have to perform the tension and torsion test on the specimen provided below the video corresponding to the challenge.

For the tension test, displace one end of the specimen to 18mm while keeping the other fixed. You will need to find out the total deformation, equivalent stress and temperature of the specimen and attach appropriate images to show your results.

For the torsion test, you will need to displace one end of the specimen to an angle of 1200 degree. Find out the total deformation, equivalent stress and temperature of the specimen and attach images to show your results.

Tension test

A tensile test applies tensile (pulling) force to a material and measures the specimen's response to the stress. By doing this, tensile tests determine how strong a material is and how much it can elongate.

Torsion test

The purpose of a torsion test is to determine the behavior a material or test sample exhibits when twisted or under torsional forces as a result of applied moments that cause shear stress about the axis.

PROCEDURE

• First, we have to input the engineering materials with required properties or else by creating with required properties.

• Then we have to import our model into ansys, import the model and open it in space claim and cut the model into half so that the academic version support.

• Then mesh the component with required mesh size in this assignment we will use
  • Mesh – default (Tetrahedrons)
  • Sphere of influence - radius = 22mm, Element size=3mm
  • Nodes – 376
  • Elements – 2758

• Analysis setting give the end time as 7e-003, Fix one end of the rod and then assign displacement load of 18mm in opposite direction of fixed load for tension test and angle for the torsion test.

• Then give the required solution parameters then solve.

RESULTS

Case 1: Tension test

Total Deformation

Equivalent stress

Equivalent strain

Temperature

Case 2: Torsion test

Total Deformation

Equivalent stress

Equivalent strain

Temperature

Conclusion

	Total deformation (mm)	Equivalent strain	Equivalent stress(MPa)	Temperature °c
Tension test	18.001	0.003031	606.88	266.67
Torsion test	20.322	0.0032012	524.34	463.36

The stress for tension test is more than torsion test while the temperature in torsion test is more than tha tension test because friction created during torsion is more than tension test.