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ElineH

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About ElineH

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    Belgium
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    Yes
  1. Hi, I am curious about the algoritms and codes used in OptiStruct and all the possibilities of the software. Does anyone know if there is some documentation about this and where I can find it?
  2. Hi, Thank you for your answer What I don't really understand is what the global stress constraint exactly does in topology optimization. In the above definition you mention it ignores local stresses that are too high but what is the point of using the stress constraint then? Your local stresses will still be too high. What is exactly meant by 'artificial stress concentrations' because as I understood the global stress constraint makes sure they are below the limit (declared in the global constraint) but I don't get what they exactly are.
  3. Hi, I know this question is already asked multiple times but I still haven't fully understood it. What is the exact difference when I define my stress constraint in the design variable of topology optimization or when I add it as a response and then a constraint of the optimization. When I add it in the design variable, without any other constraint it doesn't do anything (see attachment). Opposite to when I define it as a response and constraint. Then it does give results, although not very good ones. When I apply them both on one design, it gives a different result then when I only apply one of them 2. I do topology optimization of a hook with a minimum compliance and no other constraints or requirements. thank you!
  4. Hi, I am using HyperWorks 2019, student edition and am running a linear static analysis of a beam (topology optimization). I would like to display the displacements and stresses in the optimized structure. I found a tutuorial that could just go to a second page in hyperview where for each iteration the stresses and displacements could be visualized. I just have one tab that displays the densities (since in did a min compliance problem with volumefraction constraints). Does anyone have an idea about how to view the displacements? Thank you in advance!
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