Available theories on failure of flat plates are reviewed, and test data on the postbuckling behavior, effective width, and failure of flat curved plates are correlated.
Test data on the crippling strength of various formed and extruded shapes are reviewed, from which a generalized method of crippling analysis is formulated. The effects upon the crippling strength of alclad coatings and the increased properties in the corners of formed sections are investigated by use of this analysis.
The generalized crippling analysis was applied to a variety of sections and materials in common use. It was found that the crippling strength of all the sections is governed in a simple manner by the developed length-thickness ratio and number of corners of the section.
