zuardy
I have used genetic search for years now, on problems with objectives dependent on advanced criteria such as non- conservative dynamic stability boundaries. But I can't see what logic there is in declaring a search region to be bad because one can't solve for buckling for a design there-...
zuardy
Are you suggesting that we solve for buckling in order to confirm existence of a buckling solution ? Well, we used telescopes to confirm that the planets exist, without actually journeying out in search of them, right ? Much the same situation here. Actually, cost aside, there is...
FeaGuru
I don't quite agree with what you say. The fact is buckling cannot occur merely because compression (stress/ strain/ deformation) exists somewhere in the structure- that compression needs to be kinematically uncoupled from flexure as well . Here you may recall that linear elastic...
dermotMonaghan
Thanks for your response. While you have brought out the standard facts pertinent to buckling, I am afraid you are not answering the question I have put out. I am familiar with the buckling and post- buckling theoretical aspects you have written about. To clarify, here I am not...
GregLocock
It is indeed linear elastic buckling. But I am afraid you haven't got my question! To clarify your point, here one is not trying to find an ALTERNATIVE to an FE run for buckling, but rather, is trying to ascertain (ab initio) whether a solution does exist so that the FE run is worth...
For a given structure, one would expect classical linear buckling solutions to exist in theory, PROVIDED the applied loading does not INDUCE deformation in the buckling- mode. By virtue of that fact, one can easily ascertain whether buckling solution(s) exist in case of FE models of simple...
