Hemp, W. S.2017-02-282017-02-281957-05http://dspace.lib.cranfield.ac.uk/handle/1826/11510This note derives the mathematical equations for the analysis of the shear buckling of a plate, in the case where the initial stresses exceed the elastic limit of the material. It is hoped at a later stage to apply this theory to test results, which are being obtained using rectangular torsion boxes.enReport