Re: [Yade-users] [Question #678523]: frictionAngle vs μ(interparticle friction coefficient)

2022-03-07 Thread Chien-Cheng Hung
Question #678523 on Yade changed:
https://answers.launchpad.net/yade/+question/678523

Chien-Cheng Hung posted a new comment:
Okay, I will open a new question.
Thanks!

Chien-Cheng

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Re: [Yade-users] [Question #678523]: frictionAngle vs μ(interparticle friction coefficient)

2022-03-03 Thread Bruno Chareyre
Question #678523 on Yade changed:
https://answers.launchpad.net/yade/+question/678523

Bruno Chareyre proposed the following answer:
Please don't re-use a 3-year old thread for asking a question.
B

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Re: [Yade-users] [Question #678523]: frictionAngle vs μ(interparticle friction coefficient)

2022-03-02 Thread Chien-Cheng Hung
Question #678523 on Yade changed:
https://answers.launchpad.net/yade/+question/678523

Chien-Cheng Hung requested more information:
Hi Luc,

Could you give some comments on the main difference between the internal 
friction angle of material and the interparticle friction angle?
I couldn't find this information on the Yade.
Or could you share some links with me for more detailed information?

Cheers,
Chien-Cheng

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Re: [Yade-users] [Question #678523]: frictionAngle vs μ(interparticle friction coefficient)

2019-02-14 Thread jamespaul
Question #678523 on Yade changed:
https://answers.launchpad.net/yade/+question/678523

jamespaul posted a new comment:
Thanks Luc,

I'm recreating other people's papers.The author used open-source code
Lammps.He used four parameters:shear modulus,particle Poisson’s ratio,
particle density, interparticle friction coefficient.This should be the
simplest material.I lack knowledge of physics.The result of my
simulation is somewhat different from that of the paper. So I suspect I
have a problem converting the Angle of friction.

 I will really appreciate your concern.

James

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Re: [Yade-users] [Question #678523]: frictionAngle vs μ(interparticle friction coefficient)

2019-02-14 Thread Luc Scholtès
Question #678523 on Yade changed:
https://answers.launchpad.net/yade/+question/678523

Luc Scholtès posted a new comment:
I agree with Bruno. Self validation is crucial in our "world". Just
print the calculated value and compare it to the expected one :)

Also, be careful not to mix up the internal friction angle of a material
and the interparticle friction angle. You may be surprised...

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Re: [Yade-users] [Question #678523]: frictionAngle vs μ(interparticle friction coefficient)

2019-02-13 Thread Chareyre
Question #678523 on Yade changed:
https://answers.launchpad.net/yade/+question/678523

Status: Open => Answered

Chareyre proposed the following answer:
I think you can try your equation on your side. Best way to learn.
B

Le mer. 13 févr. 2019 10:47, jamespaul 
a écrit :

> Question #678523 on Yade changed:
> https://answers.launchpad.net/yade/+question/678523
>
> Description changed to:
> Hi,
>
> I have the frictional coefficient of some granular material, and how can
> I convert this to frictionAngle?(Contact friction angle (in radians))
>
> For example,μ=0·235
>
> My formula is:   frictionAngle=radians(arctan(0.235))
>
> Am i right?
>
> Thanks
>
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> You received this question notification because your team yade-users is
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[Yade-users] [Question #678523]: frictionAngle vs μ(interparticle friction coefficient)

2019-02-13 Thread jamespaul
New question #678523 on Yade:
https://answers.launchpad.net/yade/+question/678523

Hi,

I have the frictional coefficient of some granular material, and how can I 
convert this to frictionAngle?(Contact friction angle (in radians))

For example,μ=0·235

My formula is:radians(arctan(0.235)*)

Am i right?

Thanks

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Re: [Yade-users] [Question #678523]: frictionAngle vs μ(interparticle friction coefficient)

2019-02-13 Thread jamespaul
Question #678523 on Yade changed:
https://answers.launchpad.net/yade/+question/678523

Description changed to:
Hi,

I have the frictional coefficient of some granular material, and how can
I convert this to frictionAngle?(Contact friction angle (in radians))

For example,μ=0·235

My formula is:   frictionAngle=radians(arctan(0.235))

Am i right?

Thanks

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