Buckling design of conical shells based on palm trunks: Survey of power-law distributed thin-walled conical

作者：Wu, Lei; Liu, Wangyu^*; Su, Zhangming; Wang, Ningling; Huang, Jiale

来源：Journal of Shanghai Jiaotong University (Science), 2016, 21(3): 313-319.

DOI：10.1007/s12204-016-1727-y

• Analytical approach
• Buckling behaviors
• Buckling resistance
• Distributed material properties
• Load capacity
• Power law distribution
• Relative stiffness
• Relative thickness

This paper aims at the elastic buckling of multilayered thin-walled conical shells with power-law distributed material properties under the axial load and lateral pressure based on the experimental study of palm trunks. The material properties of the shells are assumed to vary continuously in the radial direction. Relations and analytical approaches for linear buckling response are presented by using the layer-wise shell theory. The buckling behaviors of the conical shells subjected to axial and transverse loads are investigated. Parametric study in geometry (relative thickness, relative stiffness and cone angle) is performed to enhance the overall buckling resistance and minimize the weight. Numerical results show the possibility to achieve larger load-carrying capacity by simultaneously optimizing the material and geometric parameters based on the structure of palm trunks.

• 出版日期2016-6-1
• 单位华南理工大学