Non-Linear Buckling and Postbuckling Behavior of 3D Braided Cylindrical Panels under Axial Compression in Thermal Environments

作者：Li, Zhi-Min^*; Zhao, Yi-Xi; Chen, Xiang-Dong

来源：Mechanics of Advanced Materials and Structures, 2014, 21(6): 490-504.

DOI：10.1080/15376494.2012.699590

• 3D braided panel
• higher order shear deformation shell theory
• buckling
• postbuckling
• singular perturbation technique
• boundary layer theory of shell buckling

Postbuckling behavior of a 3D braided composite cylindrical panel under axial compression is investigated. The material properties of epoxy are expressed as a linear function of temperature. The governing equations are based on Reddy's higher order shear deformation shell theory with a von Karman-Donnell type of kinematic nonlinearity and including thermal effects. A boundary layer theory of shell buckling is utilized to study postbuckling of panels. The results reveal that the temperature changes, the fiber volume fraction, in-plane boundary conditions, as well as initial geometric imperfections have a significant effect on the buckling and postbuckling behavior of braided composite cylindrical panels.

• 出版日期2014-7-3
• 单位北京交通大学; 上海交通大学