Week - 4 - crash box simulation

Objective: Simulate a crash test for a crash box using LS-DYNA.

Model:

The units system to be used is: gm-mm-ms

Material Card:

Section Card:

Contacts:

Initial Velocity:

Control Termination:

Rigid wall:

Binary Plot:

Results:

Directional Stress: X-axis:

Directional Stress: Y-axis:

Von-Misses:

Equivalent Plastic Strain:

All Energies:

Material Energies:

Nodal Acceleration:

Case 2:

Thickness increased to 1.5mm:

Von-Misses Stress:

Effective Plastic Strain:

Acceleration:

Results:

For thickness 1.2mm

Stress in X-axis: 92.63 MPa

Stress in Y-axis: 126.8 MPa

Von Misses: 154

EPS 0.00389

For Thickness 1.5mm

Von Misses Stress: 180

EPS: 0.00346