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Re: [Question #297115]: Is it possible to use ViscElMat with cohesion?

To: yade-users@xxxxxxxxxxxxxxxxxxx
From: Jérôme Duriez <question297115@xxxxxxxxxxxxxxxxxxxxx>
Date: Mon, 18 Jul 2016 17:02:36 -0000
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Question #297115 on Yade changed:
https://answers.launchpad.net/yade/+question/297115

    Status: Open => Answered

Jérôme Duriez proposed the following answer:
Hi,

I've never used ViscElMat myself but the name, corresponding to a visco-
elastic behavior as explained in the doc [1], does not suggest it
includes cohesion..

Indeed, tensile interactions are not possible within this model [2,3],
and the maximum shear force is defined by a Coulombian threshold [4],
without any cohesion in shear as well

[1] https://yade-dem.org/doc/yade.wrapper.html#yade.wrapper.ViscElMat
[2] https://github.com/yade/trunk/blob/6d4a0d1689c6bad2dbdd6e27d1653418f7fc6498/pkg/dem/ViscoelasticPM.cpp#L71
[3] https://github.com/yade/trunk/blob/6d4a0d1689c6bad2dbdd6e27d1653418f7fc6498/pkg/dem/ViscoelasticPM.cpp#L108
[4] https://github.com/yade/trunk/blob/6d4a0d1689c6bad2dbdd6e27d1653418f7fc6498/pkg/dem/ViscoelasticPM.cpp#L125 up to L132

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