STRUCTURAL COLLAPSE DUE TO PLASTIC INSTABILITY.
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abstract
In a number of circumstances the collapse and failure of structures is due to bifurcation of the load-deflection-path, as in the buckling failure of thin walled plate and shell structures subject to compressive loading. The aim of this paper is to give an overview of what is known theoretically about bifurcation induced structural collapse in which plastic deformation plays a significant role. This includes not only situations in which bifurcation takes place in the plastic range, but also situations in which plastic deformation limits the maximum support load of a structure that bifurcates in the elastic range.
