碳纳米管增强功能梯度加筋复合材料板静稳定性的有限元研究

Nguyen Thai Chung, Duong Thi Ngoc Thu
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引用次数: 0

摘要

本文采用有限单元法(FEM)和新的四变量精细化板理论研究了加筋功能梯度碳纳米管增强复合材料(SFG-CNTRC)板在静力面内载荷作用下的线性稳定性。采用新的四变量精细化板理论和有限元方法,得到了系统静力屈曲的控制方程。采用特征值问题求解方程,确定了板的临界力。通过数值算例与另一研究结果的比较,验证了本文算法的有效性。讨论了板理论、碳纳米管沿层厚分布、加强筋高度比和纤维取向角等因素对临界屈曲载荷和不稳定区域的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Static stability study of stiffened functionally graded composite plates reinforced by carbon nanotubes using finite element method
This paper presents some results on the linear stability research of Stiffened Functionally Graded Carbon NanoTube-Reinforced Composite (SFG-CNTRC) plates under static in-plane loads by the Finite Element Method (FEM) and a new four-variable refined plate theory. The governing equations for the static buckling of the system are obtained by the new four-variable refined plate theory and FEM. The eigenvalue problem method was used to solve the equation to determine the critical force of the plates. A numerical example is compared with the results in another research to check the validity of the present algorithm. The influences of some factors such as plate theory, CNT distribution along the layer thickness, stiffener height ratio, and fiber orientation angle on the critical buckling loads and unstable regions are discussed.
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