Assignment 5-RADIOSS Interfaces & Study of Effect of Notches Challenge
Objectives:
To Create the mesh for bumper assembly, mesh size should be 6mm.
To Run the crash tube model as it is.
To Change the Inacti=6 and run.
To Create the type 11 contact and run.
To Remove both notches and remove boundary condition on rigid body node then run.
To Create a new notch in the middle, select the whole section and run.
To Create a new notch with nodes only from opposing 2 faces and run.
Execution procedure:
- Set the mesh size to 6 in 2D->automesh.
- Perform geometric cleanup remove unnecessary free edges.
- Mesh all the components using automesh and check for the mesh connectivity.
Observations and results:
Case 1- Run the crash tube model as it is.
Internal energy plot:

Rigid wall forces plot:

Contact energy plot:

Node TH nodeDZ-Z plot:

Rigid body TH R Body FZ-Z plot:

Case 2- Change the Inacti=6 and run.
Internal energy plot:

Rigid wall forces plot:

Contact energy plot:

node TH Node DZ_Z plot:

Rigid body TH R Body FZ-Z plot:

Case 3- Create the type 11 contact and run.
Internal energy plot:

Contact energy plot:

Rigid wall forces plot:

Rigid body TH Rbody FZ-Z forces plot:

Node TH node DZ-Z displacement plot:

Case 4- Remove both notches and remove boundary condition on rigid body node then run.

Rigid wall forces plot:

Node TH node DZ-Z displacement plot:

Case 5- Create a new notch in the middle, select the whole section and run.
Internal energy plot:


Rigid body TH Rbody FZ-Z forces plot:

Case 6- Create a new notch with nodes only from opposing 2 faces and run.
Internal energy plot:

Contact energy plot:


observations:
1. Rigid wall forces plot is different than other cases in case-4.
2. Rigid body TH Rbody FZ-Z forces plot is also different in case-4 than others.