BUCKLING LOAD AND POST-BUCKLING SOLUTION FOR MODE SHAPE OF DELAMINATED BEAM

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International Journal of Engineering and Applied Sciences
Volume:4 Issue:2
BUCKLING LOAD AND POST-BUCKLING SOLUTION FOR MODE SHAPE OF DELAMINATED BEAM

BUCKLING LOAD AND POST-BUCKLING SOLUTION FOR MODE SHAPE OF DELAMINATED BEAM

Authors : L Chattopadhyay, PK Jain

Pages : 59-66

View : 34 | Download : 9

Publication Date : 2012-06-01

Article Type : Research Paper

Abstract :This paper presents elastic buckling and post-buckling analysis of an axially loaded isotropic beam-plate with an across-the- width delamination located at a given depth, subjected to in-plane compression. A simple analytical model for determining the global buckling load of the plate with delamination and the mode shape is developed, for various delamination depths and lengths. The influence of applied load on the displacement for a given crack length and depth is studied in the post-buckling state where the non-linear large rotations are included. It is observed that the global buckling load for local delamination buckling increases with the increase in delamination depth from the upper surface, for a given delamination length, and the buckling load decreases if delamination length increases for a given delamination depth. In the post buckling analysis the displacement increases as the applied load increases
Keywords : Delamination, beam plate, mode shape, buckling load

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