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[Question #668072]: Elastic modulus in Hertz-Mindlin contact

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From: Fu zuoguang <question668072@xxxxxxxxxxxxxxxxxxxxx>
Date: Thu, 19 Apr 2018 02:52:55 -0000
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New question #668072 on Yade:
https://answers.launchpad.net/yade/+question/668072

Dear Prof. Chareyre and all users,

The formulation of Hertz-Mindlin interaction in Yade is as implemented in PFC.
In PFC, The elastic modulus used in contact as two spheres touching each other is their
shear modulus, G_1 and G_2(or called equivalent shear modulus, G_eq), whereas in Yade, this 
parameter for H-M type is still called as 'Young'(E_1 and E_2).

Does a transformation exist between the two as 

G=E/[2*(1+v)], 

or the 'Young' directly represents the shaer modulus?

Seeking your help!

Zuoguang Fu

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