pair/gran/local does not save normal force
Hi everybody,
I have two questions
1. How to get the normal force at the contact, as the pair/gran/local only accounts for the shear force as mentioned by Jean in
node/212
2.The value of contact stress
conact stress sigma(alpha,beta)
sigma(alpha,beta)=1/V*[sum(i) sum(i neq j)*[rij(alpha)*fij(beta)/2]]
fij(beta)=fij(beta)_tangential+fij(beta)_normal
If normal force is neglected, will it give valid result for contact stress.
regards,
Samantaray
ckloss | Tue, 10/18/2011 - 16:33
>>1. How to get the normal
>>1. How to get the normal force at the contact
>>2.The value of contact stress
you will have to calculate that with a post-processing step from compute pair/gran/local data, or modify compute pair/gran/local for this purpose
Christoph
prasantud | Fri, 12/02/2011 - 15:37
post processing for contact normal forces
Thanks Christoph,
pair/gran/local command is working fine.
I request you to give some suggestions for dumping contact normal forces.
Best wishes,
Samantaray
prasantud | Fri, 12/02/2011 - 17:32
ok i can sub
ok i can substract the tangential force from the total force computed by pair/local to get contact normal forces.
thanks