Cylinder Buckling: The Mountain Pass as an Organizing Center

Details Cylinder Buckling: The Mountain Pass as an Organizing Center Cylinder Buckling: The Mountain Pass as an Organizing Center

2005-07-13

arxiv.org/abs/math/0507263v1

Mathematics

Analysis of PDEs

Scientific paper

We revisit the classical problem of the buckling of a long thin axially compressed cylindrical shell. By examining the energy landscape of the perfect cylinder we deduce an estimate of the sensitivity of the shell to imperfections. Key to obtaining this is the existence of a mountain pass point for the system. We prove the existence on bounded domains of such solutions for all most all loads and then numerically compute example mountain pass solutions. Numerically the mountain pass solution with lowest energy has the form of a single dimple. We interpret these results and validate the lower bound against some experimental results available in the literature.

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