Innovating Configuration and Mechanic Properties of Ultralight and Porous Quasi-Square-Honeycomb Sandwich Structure’ Core
American Journal of Mechanical and Industrial Engineering
Volume 2, Issue 5, September 2017, Pages: 198-204
Received: Feb. 2, 2017; Accepted: Feb. 28, 2017; Published: Nov. 28, 2017
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Authors
Li Xiang, Hubei Key Laboratory of Hydroelectric Machinery Design & Maintenance, China Three Gorges University, Yichang, China; College of Mechanical and Power Engineering, China Three Gorges University, Yichang, China; Hubei Provincial Collaborative Innovation Center for New Energy Microgrid, China Three Gorges University, Yichang, China
Zhou Youhui, College of Mechanical and Power Engineering, China Three Gorges University, Yichang, China
Tong Guan, College of Mechanical and Power Engineering, China Three Gorges University, Yichang, China
Wang Yang, College of Mechanical and Power Engineering, China Three Gorges University, Yichang, China
Yang Zhihao, College of Mechanical and Power Engineering, China Three Gorges University, Yichang, China
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Abstract
A continuous interest for an extensive use of sandwich structures in automotive, aerospace and civil infrastructure has been manifested in the last years due to the main advantage of lightweight and energy absorption ability. Based on characteristics of press molding process of honeycomb sandwich structure, a new kind of quasi-square honeycomb sandwich structure is proposed. Following classical unit cell theory and energy method, the mechanical equivalent model of the quasi-honeycomb sandwich structure is established and the corresponding equivalent elastic constant formula is deduced. Taking a sandwich panel in a satellite structure as an example, from the aspect of core characteristics, mechanical properties, equivalent elastic constants of honeycomb sandwich structure, and shear modulus, the differences between square honeycomb and quasi-square-honeycomb were analyzed and studied. The results show that both equivalent elastic modules are approximately equal, but the quasi-square-honeycomb sandwich structure is endowed with higher equivalent shear modulus and lower equivalent body density, thus the total structure mass can be effectively reduced. Simulation verifies the correctness of the proposed mechanical equivalent model of the quasi-square-honeycomb sandwich structure.
Keywords
Sandwich Structure, Quasi-Square-Honeycomb, Energy Method, Equivalent Elastic Constant, Mechanical Property
To cite this article
Li Xiang, Zhou Youhui, Tong Guan, Wang Yang, Yang Zhihao, Innovating Configuration and Mechanic Properties of Ultralight and Porous Quasi-Square-Honeycomb Sandwich Structure’ Core, American Journal of Mechanical and Industrial Engineering. Vol. 2, No. 5, 2017, pp. 198-204. doi: 10.11648/j.ajmie.20170205.12
Copyright
Copyright © 2017 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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