Buckling of GFRP sandwich webs under combined bending and shear loads

An analytical investigation of the buckling/wrinkling behavior of GFRP webs in cell-core sandwiches subjected to combined in-plane shear and bending stresses is conducted. Webcore panels are modeled as long orthotropic plates stabilized by a relatively thick layer of elastic foam. Two approaches are adopted to predict the wrinkling behavior. The first is to predict the buckling/wrinkling of webs subjected to combined shear and bending loads...