Descriptors :
Bubble,Functions,Elasticity,Finite,Strips,I-Sections,Non-Linear,Analysis
Abstract :
The finite struip displacement functions for Post-Local buckling are augmented with so-called bubble functions, which are extra modes associated with internal or nodeless degrees of freedom. A non-linear finite strip method of analysis including bubble functions is described for the Post- local buckling of geometrically imperfect plate assemblies. It is shown that the use of bublle functions improves significantly the convergence of the method. The non-linear finite strip method is then used to study channel and I-section members in compression and bending.
