How to define viscoelasticity in LS-DYNA?

03 March 2017 1 3K Report

While simulating the drop behavior of agro-products in LS-DYNA, inherent viscoelastic properties must be addressed. This can be done by introducing related parameters, such as Infinite/Instantaneous Shear Modulus, Bulk Modulus and Reciprocal of Beta. But precise determination shall be derived from Prony series in Maxwell model. So, the specific question is how to introduce Prony parameters into LS-DYNA?

Yingwang Gao

Thank you for your reply. Drop case, I believe, will be better solved using explicit dynamics. However, in Ls-Dyna, explicit dynamics does not support the material model of MAT_GENERAL_VISCOELASTIC. I'm now trying Abaqus to see if it can be done. Do you have any other ideas? :)

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