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New question #197775 on Yade:
https://answers.launchpad.net/yade/+question/197775

Hi,

I'm conducting an undrained test using peri3dcontroller with goal=(1.e-1,-1.e-1,0,0,0,0) and stressMask=0. So there will be no volume change and the porosity is expected to be constant. However I called utils.porosity() to record the quantity and observed a change from 0.171 to 0.160 (in 2D). Is this due to the large strain (10% axial compression) applied?

Thanks in advance.

Ning

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