New question #265521 on Yade:
https://answers.launchpad.net/yade/+question/265521
Hi,
I have a simulation in which a sinusoidal strain is applied to a cylindrical
sample of spheres by a box. I'd like to get the imposed stress history which is
supposed to be a sinusoidal curve with a time lag.
The history of stress on the box with bodyStressTensors()[box_1][2][2] has some
noise.
I decided to get the average stress of the spheres in the sample in z direction
as the imposed stress.
This can be done via calling the following function at certain cycles by
Pyrunner:
def get2():
stress=0.0
sums=0.0
global a
num=len(a)
for i in a:
sums+=bodyStressTensors()[i][2][2]
stress=sums/num
return stress
However, this is not efficient at all (as you can tell, with such a loop in the
function).
So, what's the most efficient way to get the stress in z direction from
spherical bodies of a model with iterPeriod of e.g.100.
Shall I use VTKRecorder?
I wonder if others are using VTKRecorder, that much or not? But, I'm not used
to it yet. I appreciate if you can share your ideas or experience in dealing
with such a case.
Regards,
Behzad
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