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[behzad <question258258@xxxxxxxxxxxxxxxxxxxxx>]

New question #258258 on Yade:
https://answers.launchpad.net/yade/+question/258258


Hey guys,

I'm writing a new constitutive contact law. It has been derived from CohesiveFrictionalContactLaw. 
I derived the material from CohFrictMat and the contact physiscs from CohFrictPhys.

Although the contact forces are as expected from the analytical equations the model fails to make a cohesive interaction.  Where do we assign the cohesion strengths? In Ip2 or the Law? 

As I see in constitutive contact law, it's assigned in Ip2 by:

contactPhysics->normalAdhesion = std::min(sdec1->normalCohesion,sdec2->normalCohesion)*pow(std::min(Db, Da),2);


So, let's simplify it by ignoring the plasticity and bond breakage. So, why simply saying :

phys->normalAdhesion = (mat1->normalCohesion); 

in Ip2, does not make the interaction cohesive?

thanks for any helps.

cheers,
Behzad

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