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[hjz <question615644@xxxxxxxxxxxxxxxxxxxxx>]

New question #615644 on Yade:
https://answers.launchpad.net/yade/+question/615644

Dear all,
      I am using Yade to simulate a triaxiaI test and the time-step of the simulation is calculated by the GlobalStiffnessTimeStepper. I have a problem about the time-step calculated by the time-stepper.
      As far as I know, the time-step calculated by the GlobalStiffnessTimeStepper increases with the increasing of the particle density. So after making a sample and before loading deviatoric stress, I'd like to change the particles' density to increase per calculation time-step. The code is presented here:
       for b in O.bodies:
	if b.id > 5:
		b.mat.density = 7930e15
      However, the time-step doesn't change at all. It seems that the time-step calculated by the GlobalStiffnessTimeStepper is irrespective of the density. What's wrong with it?
      Looking forward to your helps.
Sincerely,
hjz

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