How to connect the material parameters with contact stiffness for polyhedra?
Hey
i read https:/
#######
Real Kna = mat1->young;
Real Knb = mat2->young;
Real Ksa = mat1->young*
Real Ksb = mat2->young*
Real frictionAngle = math::min(
contactPhysics->kn = Kna*Knb/(Kna+Knb);
contactPhysics->ks = Ksa*Ksb/(Ksa+Ksb);
#######
I am wondering why the value of young could be assigned to the Kn directly? I am speculating that the name "young" does not have any specific meaning here,just represents the stiffness. Is that right?
If so, is there any method implemented in Yade actually connects the stiffness with the material parameters(such as E,shear modulus G) for a polyhedron? (distinguished from calculating the stiffness using Young's moduluus, diameter and poison's ratio for sphere contacts)
Thanks
Jasper
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