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Solid elastic sphere impact with rigid flat surface

Submitted by abeed on

i am a student. I would like to simulate impact of an elastic solid ball with rigid flat surface, I do not know how to create the best mesh for the ball so i obtain good results with ansys LS Dyna (drop test modue). of course there are some advice in DTM like avoiding tetrahedron or sharp edges, ... etc. please help me i think a ball meshed with brick element produce better results but, how can one mesh the ball entirely with only  bricks (no tetrahedron)

Simulation of a freely-vibrating cantilever beam connected to a box with granular solid particles inside using Ansys- Ls-dyna

Submitted by abeed on

A cantilver beam is connected to a closed box. 3 balls of different sizes and materials are inside the box. the beam was draged litle downward from the middle and then left to vibrate freely. of course, during the vibration, the balls will colide with the box walls and with each others. The question: is it possible to simulate this system with ansys? if yes, How?