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Re: [Question #696047]: calculation of flexural stress in 2D condition

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From: Karol Brzezinski <question696047@xxxxxxxxxxxxxxxxxxxxx>
Date: Sun, 14 Mar 2021 13:20:51 -0000
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Question #696047 on Yade changed:
https://answers.launchpad.net/yade/+question/696047

    Status: Open => Answered

Karol Brzezinski proposed the following answer:
Hi Steve,

Please note that 2D solutions are used either for plane streets or plain strain. In such a case the load is actually 'linear pressure' and the force is distributed over assumed thickness (e.g. unitary). Thanks to this, you can you use your formula,  by assuming the thickness is known. In may opinion there is no good answer for your question. I would suggest to take step back and rethink whether 2D is a good idea.
If you want to stick to 2D you could also 'measure' forces in the symmetry o plane and 'smear' them over a known cross-section of the sample that you are modeling. By smearing I mean you could calculate the bending moment and apply it to the theoretical beam.

Best wishes, 
Karol

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