Nonlinear buckling and post-buckling response of stiffened FGM plates in thermal environments

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• 作者：Maciej Taczała^a ; ^{maciej.taczala@zut.edu.pl} ; Ryszard Buczkowski^b ; ^{rbuczkowski@ps.pl} ; Michal Kleiber^c ; ^{mkleiber@ippt.pan.pl}
• 关键词：FGM stiffened plate ; Nonlinear finite element analysis ; Post-buckling
• 刊名：Composites Part B: Engineering
• 出版年：2017
• 出版时间：15 January 2017
• 年：2017
• 卷：109
• 期：Complete
• 页码：238-247
• 全文大小：3179 K
• 卷排序：109

文摘

We present a nonlinear finite element method to investigate the nonlinear stability of stiffened functionally graded materials (FGM) plates considered as a whole unit. The plates are subjected to mechanical and thermal loads. The material properties are assumed to be temperature dependent and varied gradually across the thickness according to a power law distribution. The nonlinear equations of FGM plates are based on the first-order shear order plate theory. The influence of material, geometrical properties of stiffeners and initial deflections on the buckling and post-buckling response of the stiffened plates are studied in detail. Including the latest information no work has been oriented towards post-buckling analysis of stiffened FGM plates considered as a whole unit.