Week 11 Car Crash simulation

CAR CRASH CHALLENGE

OBJECTIVES

In this challenge, we have to perform a parametric study using 3 different values of thickness for the car body. You need to apply the same conditions as mentioned in the video that corresponds to this challenge. Analyse the total deformation and Equivalent stresses acting on the model.

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.

• Assign symmetry to the face of the wall and edges of the car.

• Then mesh the component with required mesh size in this assignment we will use
  • Mesh – 340mm
  • Sizing - 390mm
  • Nodes – 16129
  • Elements – 31289

• Analysis setting give the end time as 1e-003, maximum energy error is given as 0.1 to avoid energy error and fix the car body and give displacement to the wall.

• Assign the parametric to study different cases of thickness of 0.3, 0.6 and 0.9 mm respective results.

• Then give the required solution parameters then solve.

RESULTS

Case 1: Thickness 0.3mm

Total Deformation

Equivalent stress

Equivalent strain

Case 2: Thickness 0.6mm

Total Deformation

Equivalent stress

Equivalent strain

Case 3: Thickness 0.9mm

Total Deformation

Equivalent stress

Equivalent strain

Conclusion

From the above stimulation results it is clearly concluded that the increase in thickness will reduce the total deformation and reduce the impact.