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Large deflections and imperfection sensitivity of structural systems Stephenson, Norman G

Abstract

The sensitivity of a structural system to initial imperfections is known to be largely determined by the post-buckling behaviour of the ideal system and further the rate at which the load capacity of the ideal system changes near the critical load. A general non-linear stiffness matrix capable of predicting the post-buckling behaviour of structural systems is developed and tested. A procedure is formulated for predicting the stable equilibrium zones of structural systems and examples are investigated to verify the correctness of the method.

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