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- 주제어 : · Composite plate · Graphene nanoplatelet · Nonlinear vibration · Sandwich-like structure (검색결과 1 건)
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Dynamic and static properties of sandwich-like graphene-reinforced composite plate
Min Sun,Wen-xing Lu,Minghui Yao,Jianen Chen 대한기계학회 2023 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.37 No.6
A graphene-reinforced composite plate (GRCP) with a sandwich-like structure is proposed. The nonlinear mechanical characteristics of the sandwich-like GRCP are investigated and compared to those of functionally graded and uniform GRCPs. The modified HalpinTsai model is employed to estimate the material parameters, and the Hamilton principle is used to derive the governing equation for the composite plates. The effects of the graphene nanoplatelet (GPL) distribution patterns, weight fraction, and the number of layers on the static and dynamic nonlinear responses of the plates are investigated. The results show that the various GPL distribution patterns have different enhancement effects on plates. Compared with the graded and uniform distribution patterns, the sandwich-like distribution pattern has significant advantages in terms of anti-vibration and anti-bending properties. Furthermore, it is found that the stresses of the sandwich-like GRCPs are discontinuous, there exist stress mutation phenomena between the surface layers and the pure matrix layer.
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