A PARAMETRIC STUDY OF PINCHED ORTHOTROPIC CYLINDRICAL-SHELLS

[摘要] A tensor-oriented mathematical treatment is proposed for finite-element analysis of shells of composite orthotropy involved. Based on this approach and a consistent shell theory, a parametric study concerning directional properties of pinched orthotropic cylindrical shells is performed by the NACS54 triangular and NACS48 rectangular elements developed. The computational results for a pinched isotropic cylinder are in closer agreement with the related closed-form solution than the other numerical ones. Using the present unified finite-element model, the prebuckling behaviours corresponding to various stiffness ratios and directional angle changes for pinched orthotropic cylindrical shells are also investigated in detail.

[发布日期] 1991-06-26

[关键词] PINCHED ORTHOTROPIC CYLINDRICAL SHELL;TENSOR ANALYSIS;FINITE-ELEMENT METHOD