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Re: stress free on a surface

From: Konstantinos Poulios
Subject: Re: stress free on a surface
Date: Mon, 20 Dec 2021 21:43:38 +0100

Dear Anne-Cecile,

If you do not apply any boundary condition to this surface, it will by definition be traction free. You do not need to do anything.

The correct condition mathematically is not "sigma = 0" but "sigma*Normal = [0;0,0]". But again you do not have to impose it.

Best regards

On Mon, Dec 20, 2021 at 9:13 PM Lesage,Anne Cecile J <> wrote:

Dear all


In a python script, I defined a boundary for a 3D tetra mesh


meshb.set_region(STRESSF_BOUND, fbss)


How do I impose a stress free on this surface sigma=0?


Thank you





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