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Lucas

Corner data for isotropic composite

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Hi,

 

There is a description of corner data, its significance and use in the HyperWorks student guide (Practical Aspects of Finite Element Simulation). In page 187 of the student guide,  we see an example about stress concentration in a plate with a hole, which is a good example where corner stress results are necessary.
By default the element stresses for shell (and solid elements) are output at the element center only. In other words, these stresses are not exactly the ones “existing” at the hole. To better resolve the stresses at the hole, the element stresses are output at the grid points using bilinear extrapolation (in HyperMesh activate the Control cards > Global output request > Stress > Location: Corner).

 

Free e-books can be downloaded at: http://www.altairuniversity.com/free-ebooks-2/

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Thank you for your response. I had already read this part. And i know that it exists for standard shell. But i don't find corner data for composite. In the card Cstress, it isn't proposed like the card stress.

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Altair OptiStruct 2017.2.3 provides Corner option for composite stres.CSTRESS(corner) is only supported for linear static analysis.H3D is the only supported format.

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