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Showing results for tags 'cstress'.
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Hi everybody, I am currently working on automating an optimazation process for a composite structure with the Solver OptiStruct and HyperWorks Version 2017.3 . Therefore i need to programm a python script which whom i can get the Normal X and Y Stresses of CSTRESS. What i have tried: I checked the OUTPUT-BOX in LOADSTEPS an then checked CSTRESS. The output format i choosed is PUNCH (its the only one i can read with an normal texteditor, right?). TYPE = ALL; NDIV = 1; OPTION = ALL. After the optimazation i opened the .pch file, but the only stress i can allocated is the von Mises Stress i dont want to know. Can somebody tell me where i can find the Normal Stresses, optional the other Stresses and optional the CSTRAIN and CFAILURE? I thank you in advance.
for 3D composite analysis how to check failure index? if its not possible, what is the parameter to be checked to ensure safety of design? i mean in 3D analysis of metals we check for Von-Mises stresses like wise what we have to check in 3D composite analysis? I am attaching my model with this. dragstrut.hm