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[Question #247689]: Cundall Strack Vs Mindlin law

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From: Sina Jafari <question247689@xxxxxxxxxxxxxxxxxxxxx>
Date: Sat, 26 Apr 2014 05:11:34 -0000
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New question #247689 on Yade:
https://answers.launchpad.net/yade/+question/247689

Hi all,
I've read almost every post on contact laws but still I have some questions! 

1. I'm trying to model a packing of spheres using mindlin law. My simulation tends to be quasi-static keeping UFI value as low as 0.01 during the simulation. the problem is that I don't know which kind of damping suits my case! Actually by reading previous posts I figured out that cundall's non-viscous damping is meant to be used in quasi-static simulations due to its nature of being applied globally?! 

2. Can I use non-viscous damping with mindlin contact law for quasi-static simulations?  what if I use viscous damping? Any sources to study the effect of damping (both viscous and non-viscous) on behaviour of the model?

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