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[mohsen <question290372@xxxxxxxxxxxxxxxxxxxxx>]

Question #290372 on Yade changed:
https://answers.launchpad.net/yade/+question/290372

mohsen posted a new comment:
in the case of larg number of particles, i think for each new
interaction, computation follows Cpmphys functor; i.e. computing
'average' E. Therefore i should change 'E' by above formula in each
iteration an for every interaction. So in my script where should i put
the above 'for' loop?! For example for 1000 iterations is the following
script true?

#after defining scene and engines#
 ii=1000
while O.iter<ii
  O.step()
  for i in O.interactions:
    mat1 = O.bodies[i.id1].mat
    mat2 = O.bodies[i.id2].mat
    E1,E2 = mat1.young, mat2.young
    i.phys.E = whatever(E1,E2)
    i.phys.kn = pi*pow(i.crossSection,2)*i.phys.E / i.phys.refLength
######
 
i think all forces first are computed according to Cpmphys functor and then the interaction parameters changed. So changing interaction parameters does affects?!

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