Challenge

Week 11 Car Crash simulation

OBJECTIVE:-

To set the Car crash simulation in explicit dynamics analysis system with different surface thickness

Steps:-

Import model:-

Import the model from saved location and open it in space module check for abnormalities
In this case we will be using stainless steel non linear material for car body

Mechanical module:-

Rename the parts for convinience
Suppress the unnecessary geometry
Give the thickness as 0.3mm for car part and make it as parameter set
Now the variable will be set as parameter to see the results with different thickness
Delete the default connections

Mesh:-

Mesh the wall with tetrahedron elements
Mesh the car body with triangle elements
Perform face sizing on the faces where the contact does not occur
Increase the element size to 175mm so that the computational time will be decreased
Fully meshed model is shown below

Create Symmetry:-

Right click on model>insert> Symmetry
Symmetry Folder will be created, now insert symmetry region for Car and wall in respectieve direction

Analysis Settings:-

Define load:-

Define fixed support for the car parts where the contacts wont happen
Define a Displacement load of 500mm on wall in Global Z direction
Request the above mentioned output
After the simulation is finished parameter set the rquired outputs
Go back to workbec=nch module , now we can see parameter set
Open the parameter set module and enter different thickness value
after entering all the thickness value use update all design points option to solve for the output in different case