Assignment 5-RADIOSS Interfaces & Study of Effect of Notches Challenge
- Create the mesh for bumper assembly,mesh size should be 6mm.
Given Model.
Meshed Model with element size =6mm
1 . Run the crash tube model as it is.
Ans :-
Given Model:
Runned the model and ploted graph ,
Ploted a graph in internal enenrgy and contact energy.
Ploted Rigid wall forces .
Ploted Contact Forces.
2 . Change the Inacti=6 and run.
Ans :-
Ploted Energy graphs
Ploted Rigid wall forces.
Ploted Contact force graph.
3. Create the type 11 contact and run.
Ploted Energy.
Ploted Contact Forces.
Ploted Rigid Wall forces.
4.Remove both notches and remove boundary condition on rigid body node then run.
Ans :- Aliging nodes.
Ploted Energy Graph.
Ploted Rigid wall forces .
Ploted Contact force .
5 .Create a new notch in the middle ,select the whole section and run.
Ans :- Created middle notch and simulated.
Ploted Energy Graph .
Ploted Rigid wall forces .
Ploted contact forces .
6.Create a new notch with nodes only from opposing 2 faces and run.
Ans :-
Created a new notch with nodes only from opposing 2 faces.
Ploted Energy Graphs.
Ploted Rigidwall forces.
Ploted contact forces.
| CASES |
Maximum Total Energy (kg*mm2/ms2) |
Minumum Total Energy (kg*mm2/ms2) |
Maximum Rigid Wall Forces |
Contact forces Total Resultant force(max) |
Internal Energy (kg*mm2/ms2) Maximum |
| CASES 1 | 44400.8 | 42274.1 | 1338.01 | 1056.38 | 42272.8 |
| CASES 2 | 44400.8 | 42274.1 | 1338.01 | 1056.38 | 42272.8 |
| CASES 3 | 44400.8 | 42548. | 1310.5 | 9.98636e-12 | 42547.2 |
| CASES 4 | 44400.7 | 42637 | 1209.11 | 596.279 | 42636. |
| CASES 5 | 44401.01 | 42492.6 | 1264.22 | 665.187 | 42491 |
| CASES 6 | 44400.8 | 42548 | 1310.53 | 1212.56 | 42260.6 |
- Comment your thought on why there is a change in the internal energies.
- Ans :- When we are removng notches the internal energy was increasing.due to the simple model i cant find the the diffrence in the interface .
- How does the notch affect the results?
- Ans :- When we are adding notches the internal energy decreases and Rigid wall forces increases and contact energy is increasing.adding notchs is reducing the impact of force that was affecting to the model.