Challenge

Week - 3 Drop test Challenge

AIM:

To run a error free termination and to perform the simulation for the given model when it impacts the ground, by analyzing the stress.

Procedure:

Constrain the ground for impact using the boundary-> spc and lock all the degrees of freedom for the section
Set free the translational motion in z direction for the phone to impact.

Assign the initial velocity in initial-> velocity by providing the value to be -10000mm/s in z translational

Create new section id by creating new section for both the ground and the phone.
Assign the elform2 and the sec id’s respectively

Create the material properties for both sections
For phone mat -> Piecewise Linear Plasticity is created and assigned by providing the properties of steel.

For ground of impact mat-> rigid is assigned and the same material property is assigned.

Go to part in the keyword manager assign both the section and material cards to the parts

Create a new contact card under automatic surface to surface as phone body results in contact with the surface.
Define the control termination card for the and assign the end time as 0.05s

Perform a model check and if no error or warning shows save the model and run the file in ls program manager until an error free termination occurs.

Open the file in ls pre-post under d3plot and run the animation.
Use the post processing command to obtain results in the model through visual animation as shown below.

Stress in z direction

Von misses stress

kinetic energy

internal energy

Result:

Thus an error free termination of the model is obtained and the results are compared using graphs and animations..

Ship work like this
in your own course.