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Re: [Question #652261]: at the beginning steps, the stresses are the same when i use different young of balls

To: yade-users@xxxxxxxxxxxxxxxxxxx
From: Wang Wang <question652261@xxxxxxxxxxxxxxxxxxxxx>
Date: Sat, 14 Oct 2017 11:58:42 -0000
Reply-to: question652261@xxxxxxxxxxxxxxxxxxxxx
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Question #652261 on Yade changed:
https://answers.launchpad.net/yade/+question/652261

    Status: Answered => Open

Wang Wang is still having a problem:
Hi, Jan

I choose your first suggestion and it solve the problem.

(
1) edit IPhys instead of material, but then you should know the model to change everything necessary:
for i in O.interactions:
   i.phys.E = 1e20
   i.phys.kn = i.phys.E * i.phys.crossSection / I.phys.refLength)


However, when i want to calculate the parameter "frictionAngle", I edit the code like this:

for i in O.interactions:
   i.phys.tanFrictionAngle = 0.8;

the question is: is there any parameters related to tanFrictionAngle i fogot to write? what is "everything necessary" you said in this situation?
I have read the source code, it is said that the phys->tanFrictionAngle=tan(mat1->frictionAngle), so i don't know what I have fogotton.

Thanks!

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