Post-buckling analysis of V-stiffened corrugated sheets under compression

摘要

The effect of interaction between one overall buckling mode (Eulerian or torsional) and several local buckling modes is investigated in this paper.It is shown that interaction between Eulerian-local buckling modes is more severe than interaction between flexural/torsional-local buckling modes in the snese that the structure is more sensitive to initial imperfections.In the analysis,Koiter general stability is employed where the energy expansion up to the third order terms is utilized,since postbuckling behaviour of panels is asymmetric.Inital geometric imperfections are taken into account.The analysis is numerically performed by using finite strip method.