Using O.forces along normal and tangential directions at contact
Asked by
Rioual
Hello,
I would like to add a force at the contact particles with O.forces (doing a loop on all interactions between particles).
This force evolves in a complex way in time and has a normal component Fn dependant on normal strain rate and tangential component Ft dependant on tangential strain rate. Can I have access easily normal strain rates (U_n) , tangential strain rates ( U_t) and components of the normal and tangential unit vectors ( n and t) in global coordinates (to use O.forces) ??? by ScGeom ? How ??
Thanks for your help,
Best
Vincent
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