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Residual stress in Comsol4

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Hello,

I recently switched to Comsol 4. I am trying to simulate the effects of residual stress in a microstructure, however I cannot find the initial stress values input fields anywhere in the model. Can you help me sort this out please?

Many thanks!

2 Replies Last Post 22 nov 2010, 10:30 GMT-5
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)

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Posted: 1 decade ago 22 nov 2010, 10:20 GMT-5
Hi
Check the initial condition sub-node, but also get hands on the 4.1 (being shipped these days I have heard) its more stable ;)

--
Good luck
Ivar
Hi Check the initial condition sub-node, but also get hands on the 4.1 (being shipped these days I have heard) its more stable ;) -- Good luck Ivar

Magnus Ringh COMSOL Employee

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Posted: 1 decade ago 22 nov 2010, 10:30 GMT-5
Hi,

You enter initial stresses in the "Initial Stress and Strain" subnode, which you add by right-clicking a solid mechanics material model node (a "Linear Elastic Material Model" node, for example). It is then by default valid in the same domains as its parent node. You need the Structural Mechanics Module or MEMS Module to access the "Initial Stress and Strain" subnode.

Best regards,
Magnus Ringh, COMSOL
Hi, You enter initial stresses in the "Initial Stress and Strain" subnode, which you add by right-clicking a solid mechanics material model node (a "Linear Elastic Material Model" node, for example). It is then by default valid in the same domains as its parent node. You need the Structural Mechanics Module or MEMS Module to access the "Initial Stress and Strain" subnode. Best regards, Magnus Ringh, COMSOL

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