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Re: [Getfem-users] divergence of stress tensor

From: Yves Renard
Subject: Re: [Getfem-users] divergence of stress tensor
Date: Tue, 16 Jan 2018 17:32:16 +0100
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Dear Phuoc,

There is no specific function for that, but you have access to the Hessian ('Hess_u' for the variable u), so you have to give the _expression_ of the divergence of the stress tensor with respect to the Hessian of the variable.

Additionally, for the jumps on normal derivatives on element interfaces see

Best regards,


Le 16/01/2018 à 06:08, Huu Phuoc BUI a écrit :
Dear getfem users,

I'd like to compute the divergence of stress tensor of a linear elasticity problem which is necessary in an a posteriori error estimate.

Do you have any idea how to compute it using generic assembly of GetFEM? 

Thank you
​ in advance for your support.​

Best regards,


  Yves Renard (address@hidden)       tel : (33)
  Pole de Mathematiques, INSA-Lyon             fax : (33)
  20, rue Albert Einstein
  69621 Villeurbanne Cedex, FRANCE


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