Assignment 4-RADIOSS Material Laws Challenge
Case 1
- Import the FAILURE_JOHNSON_0000.rad file and run the model as it is. Give the title name as Law2_epsmax_failure.
Case 2
- Import the case 1 rad file, named “Law2_epsmax_failure” and perform the simulation with failure plastic strain (EPS_p_max) and fail_Johson card enabled.
- Changes to be made in /FAIL/JOHNSON card:
- ifail_sh= 1
- Dadv= 1
- Ixfem= 1
- Use the recommended values for the property card.
- Give the title name as Law2_epsmax_crack.
Case 3
- Import the case 2 rad file, named “Law2_epsmax_crack” and perform the simulation by removing the fail_Johnson failure card. Give the title name as Law2_epsmax_nofail.
Case 4
- Import the case 3 rad file, named “Law2_epsmax_nofail” and perform the simulation by removing both the failure plastic strain (EPS_p_max) and the fail_Jhonson failure card.
Case 5
- Import the case 4 rad file and perform the simulation by changing the material card to Law 1. Keep the same value for rho, E, and nu values.
Case 6
- Import the case 1 rad file, named “Law2_epsmax_failure” and perform the simulation with the law 36 material card. Refer to the video titled "Materials 7" for further information.
Case 7
- Open the Law27_0000.rad file and perform the simulation with the law 27 material card. Use the recommended shell properties.
Compare 7 cases as discussed in the last 3 slides, in a tabulated format based on:
1. The Total number of cycles, Energy error, mass error, and simulation time.
2. Notice the animation of all 5 and describe the animations in brief based on whether the elements are being deleted or cracked.
3. Plot energies and notice any difference.
4. Based on all the results, which case would represent the on-field scenario.
5. Prepare a ppt/Docx and list down case by case results and your conclusion as to why the failure happened.