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[Jan Stránský <question251218@xxxxxxxxxxxxxxxxxxxxx>]

Question #251218 on Yade changed:
https://answers.launchpad.net/yade/+question/251218

    Status: Open => Answered

Jan Stránský proposed the following answer:
Hi Behzad,

for the first sight it should work. If everything will work as a complex
will strongly depend on the implementation of the other functors,
especially the Law2..

Cheers
Jan
Dne 29.7.2014 21:37 "behzad" <question251218@xxxxxxxxxxxxxxxxxxxxx>
napsal(a):

> Question #251218 on Yade changed:
> https://answers.launchpad.net/yade/+question/251218
>
>     Status: Answered => Open
>
> behzad is still having a problem:
> Alright, I tried to modify CohFrictMat.hpp in trunk/pkg/dem to define a
> new class of material.
>
> This material is supposed to have Burger's model. Thus, it must have
> four parameters (2 springs stiffness and 2 dashpots viscosity).
>
> Will the following work? Then, I will move on defining the corresponding
> Ip2 and a Law class.
>
>
> =====================================================
>
> #pragma once
>
>
> #include<yade/pkg/common/ElastMat.hpp>
>
>
> class CohBurgersMat : public FrictMat
> {
>         public :
>                 virtual ~CohBurgersMat ();
>
> /// Serialization
>         YADE_CLASS_BASE_DOC_ATTRS_CTOR(CohBurgersMat,FrictMat,"",
>                 ((bool,isCohesive,true,,""))
>                 ((Real,Em,1e3,,"Stiffness of Maxwell's spring"))
>                 ((Real,Ek,1e3,,"Stiffness of Kelvin's spring"))
>                 ((Real,Cm,10,,"Viscosity of Maxwell's dashpot"))
>                 ((Real,Ck,10,,"Viscosity of Kelvin's dashpot"))
>                 ((Real,poissonRatio,0.5,,""))
>                 ((Real,normalCohesion,1e4,,""))
>                 ((Real,shearCohesion,1e4,,""))
>                 createIndex();
>                 );
> /// Indexable
>         REGISTER_CLASS_INDEX(CohBurgersMat,FrictMat);
> };
>
> REGISTER_SERIALIZABLE(CohBurgersMat);
>
>
> ==============================================
>
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