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buckling of steel column
Posted: 18 Nov 2009, 18:09
by kargar
I want to model a steel structure, whose columns are capable of buckling. I know that I have to introduce an imperfection inside my element as well as refined mesh. I just want to know which of the three models which are introduced inside the software for steel is suitable for modelling the buckling.
Re: buckling of steel column
Posted: 22 Nov 2009, 17:22
by seismosoft
In principle, any model should be fine since the buckling will be mainly driven by geometrical nonlinearity, rather than material one.
However, if one uses an adequately calibrated 'stl_mn' model, it will obviously be easier to simulate buckling. The same happens for the 'stl_mp' model with a negative value for the 'a3' parameter, which is perhaps the model that we would reccommend.
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