Composite tennis racket in Radioss

Matteo17

Hi everyone,

I am currently working on modeling a composite tennis racket to simulate the impact of the ball with the racket strings.

I have a few doubts regarding the simulation of the strings: should I represent them using 1D beam elements ? Also, what type of contact should I implement between the strings? Would an "Edge-to-Edge" contact in Radioss be the right choice?

Furthermore, regarding the grommets/holes where the strings pass through the frame, do you recommend using an RBE element?

If anyone has already worked on a similar problem, could you please help me out or share a .rad sample file so I can have a reference example?

Thank you in advance for your help!

Guilherme_

Hello Matteo.

Modeling a composite tennis racket is indeed no trivial task. For the strings, a simpler approach would be to use beam or spring elements. Perhaps one can also consider using a solid mesh (e.g. 2 hexa elements through the cross section), though at the cost of higher computation cost.

Regarding contacts, if you use 1D elements, TYPE11 contact would be a good option. For solids, you can consider TYPE25. For the attachments, I do believe RBE2/RBODY elements could be used

Unfortunately, we don't have any examples to share at this time. Perhaps another member of the community may have something to contribute.

Best regards,

Guilherme Brandão.