Elastic shear buckling coefficients for diagonally stiffened webs

In this paper, the characterisation of elastic shear buckling behaviour simply supported plates diagonally stiffened excluding influence direct stresses is made. Two broad numerical parametric studies consisting linear analysis by finite element method are performed, covering entire practical range critical parameters like aspect ratio and stiffener’s mechanical properties. first study, attention given to each parameter in stress. For that reason, a beam FE chosen model stiffener, allowing variation individually. As it systematically disregarded previous studies, particular effect torsional rigidity. The models used second study consist full-shell FE, results perform regression ultimately allowed proposed two mathematical for analytical calculation coefficient: open stiffeners over compression diagonal closed cross-section diagonal. present excellent accuracy. • thoroughly characterised. Models analytically determine coefficients proposed. stiffner rigidity if analysed included models.