Examination of thermal postbuckling behavior of temperature dependent FG-GRMMC laminated plates with in-plane negative Poisson's ratio

被引：0
|
作者：
Shen, Hui-Shen [1 ,2 ]
Xiang, Y. [3 ]
机构：
[1] School of Aeronautics and Astronautics, Shanghai Jiao Tong University, Shanghai,200240, China
[2] School of Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai,200240, China
[3] School of Engineering, Design and Built Environment, Western Sydney University, Locked Bag 1797, Penrith,NSW 2751, Australia
来源：
Thin-Walled Structures | 2021年 / 163卷
基金：
中国国家自然科学基金;
关键词：
Auxetic materials - Composite laminated plates - Functionally graded - Negative Poisson ratio - Plate - Postbuckling behavior - Reinforced metal matrix composites - Temperature dependent - Thermal buckling - Thermal post-buckling;
D O I：
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中图分类号：
学科分类号：
摘要：
Auxetic composite laminates are a new type of engineering materials that have unique features for important potential applications. This paper examines the effect of in-plane negative Poisson's ratio (NPR) on the thermal postbuckling behaviors of graphene-reinforced metal matrix composite (GRMMC) plates. The plates rest on an elastic foundation and are subjected to a uniform temperature rise. The GRMMC layers with different volume fractions of graphene reinforcement can be arranged to achieve piece-wise functionally graded (FG) patterns across the plate thickness and the material properties of the GRMMC layers are temperature-dependent. The Reddy's third order shear deformation plate theory and the geometric nonlinearity of von Kármán-type are applied to formulate the thermal postbuckling equations for GRMMC laminated plates. The nonlinear problem can be solved by a two-step perturbation approach. Parametric study is performed for (±10)5T and (±10)3T GRMMC laminated plates possessing in-plane NPR. The results reveal that the buckling temperatures for (±10)5T and (±10)3T plates are significantly enhanced with an FG-X pattern for the plates. We found that due to the combined effect of FG and in-plane NPR, the thermal postbuckling strength of FG-X (±10)3T plate is higher than that of FG-X (±10)5T plate. © 2021 Elsevier Ltd
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