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[Bruno Chareyre <question696704@xxxxxxxxxxxxxxxxxxxxx>]

Question #696704 on Yade changed:
https://answers.launchpad.net/yade/+question/696704

Bruno Chareyre proposed the following answer:
Hi,

PWave velocity is (bulk modulus /density)**0.5 with "modulus" and
"density" defined at the macroscale.

For density it is simply mat.density * (1-porosity). For the modulus, you can evaluate it with a static loading (uniaxial compression).
I would discourage trying to actually simulate a wave propagation, it is particularly complex and error-prone.
Bruno

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