Optimal design of a novel cylindrical sandwich panel with double arrow auxetic core under air blast loading

作     者：Xu-ke Lan Qi Huang Tong Zhou Shun-shan Feng Xu-ke Lan;Qi Huang;Tong Zhou;Shun-shan Feng

作者机构：State Key Laboratory of Explosion Science and TechnologyBeijing Institute of TechnologyBeijing 100081China 

出 版 物：《Defence Technology（防务技术）》 (Defence Technology)

年 卷 期：2020年第16卷第3期

页      面：617-626页

核心收录：

学科分类：08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

主　　题：Auxetic structure Blast response Finite element analysis(FEA) Optimal design 

摘      要：The increasing threat of explosions on the battle field and the terrorist action requires the development of more effective blast resistance materials and *** structure can support the external loads effectively by virtue of their spatial *** review of the excellent energy absorption property of auxetic structure,employing auxetic structure as core material in curved sandwich shows the potential to improve the protection *** this study,a novel cylindrical sandwich panel with double arrow auxetic(DAA) core was designed and the numerical model was built by *** to the complexity of the structure,systematic parameter study and optimal design are *** cases of optimal design were considered,case1 focuses on reducing the deflection and mass of the structure,while case2 focuses on reducing the deflection and increasing the energy absorption per unit *** study and optimal design were conducted based on Latin Hypercube Sampling(LHD)method,artificial neural networks(ANN) metamodel and the nondominated sorting genetic algorithm(NSGA-Ⅱ).The Pareto front was obtained and the cylindrical DAA structure performed much better than its equal solid panel in both blast resistance and energy absorption *** results can be used as a reference for different applications.