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Re: [Question #248206]: A simple case for stress strain curve

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From: Bruno Chareyre <question248206@xxxxxxxxxxxxxxxxxxxxx>
Date: Tue, 06 May 2014 15:36:00 -0000
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Question #248206 on Yade changed:
https://answers.launchpad.net/yade/+question/248206

Bruno Chareyre proposed the following answer:
To me, this column test is better described by a force-displacement relation. Of course you can convert this to stress-strain if you define the height and cross-sectional area of the column, but using more advanced post-processing like bodyStressTensors has no obvious advantage.
You could solve the volume problem mentionned by Jan using [1], but it would give exactly the same as dividing by the cross sectional area mentionned above. 

[1] https://www.yade-dem.org/doc/user.html#micro-stress-and-micro-strain

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