Method of strength analysis for doubly-curved stiffened orthotropic shells by various strength theories

The paper proposes a method of strength analysis for materials thin-walled shell structures reinforced with stiffeners. shells under consideration were made orthotropic materials. authors analyze the applicability following seven criteria: maximum stress criterion, Mises-Hill Fisher Goldenblatt-Kopnov Liu-Huang-Stout Tsai-Wu and Hoffman criterion. During study, doubly-curved shallow square in plan considered. A geometrically nonlinear mathematical model deformation, which considers transverse shears, was used. calculations based on characteristics T10/UPE22-27 glass-fiber-reinforced plastic. relies calculating values several criteria at each step structural loading analyzing development areas failing to meet conditions as load increases.