Particle Stiffness

Posted in: , on 17. Sep. 2009 - 15:23

Hello, I'm new here. Currently I'm working on some DEM simulations. I would like to know if enybody here could tell me how to obtain a stiffness of particles. Let's say I have a substitionary radius, Young's modulus, Poisson's ratio etc. I've found some equations, but I don't know if they are suitable.

I would be grateful for any help

Thanks in advance

Best regards ■

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Re: Particle Stiffness

Posted on 17. Sep. 2009 - 02:59

Thanks

So I can directly use equation k=EA/L for spherical particles?

Where:

L=d (diameter)

A=(pi*d^2)/4

I'm using PFC3d, and I read about contact Young's modulus in a user's guide, which is suppose to be different (and reffering to the manual - greater than "normal" Young's modulus) ■