Isogeometric pre-buckling analysis of laminated shallow shells

Abstract

Abstract The deployment of laminated shallow shells has achieved significant traction across the domains of aerospace, mechanical, and marine engineering, where ensuring structural stability remains a major consideration. In this paper, the pre-buckling analysis of laminated shells is proposed based on the isogeometric model. The geometric structure and displacement of the shallow shell are represented by NURBS basis functions with fewer control points, and the nonlinear behavior of the shell is shown by the path-following method. The result shows that the nonlinear pre-buckling critical points are associated with the laminated material, which provides a certain reference for the further optimization of laminated parameters to improve the pre-buckling performance of shells.