Learning Forum

[Hshay]

Greetings everyone! I am a graduate student who majors in LS-DYNA, I was simulating the cable(also as wire, web, rope) with APDL recently, I set up the model with link167 and elastic material, but I found when the rigid ball hit the web, the web just can't stop vibrating, I think there should be damp somewhere or should I change link167 to link180?can you guys tell me how to adjust it and how to use hyperelastic material? Thank you very much!!!

[jj77]

Not sure what 167 (explict perhaps).

 

If you are using APDL nonlinear transient dynamic (implicit)

 

You need to add damping in form of Rayleigh damp.:

E.g. (You need to find the correct values), 

ALPHAD,0.1

BETAD,0.001 

Just as an example

 

For explicit see how damping is defined in LSDYNA say ( I do not have any exp. in Ansys - LS DYNA)

(e.g., EDDAMP command )

There is an example about this command and damping in appendix D of the ANSYS LS-Dyna User Guide in Ansys help.

 

Perhaps this is of use also

 

or in MP, BETD or MP,ALPD command

[Hshay]

Thank you so much for your reply, I am working on it just as what you say, thank you!!!