Method of split rigidities and its application to various buckling problems

P. P. Bijlaard
naca-tn-4085
Jul 1958


A comprehensive treatise on the method of split rigidities is presented. First the principles upon which the method is based are discussed. It is shown on new examples how these principles are applied. These applications are divided into problems where all component modes into which the actual behavior of a composite structure is split have the same boundary conditions and into those where these boundary conditions differ. Examples of the first type include sandwich columns with various boundary conditions, columns with batten plates, and latticed columns; examples of elastic and plastic buckling of sandwich plates with orthotropic core and corrugated-core sandwich plates are given.

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