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Mechanical Properties of 3D Isotropic Anti-Tetrachiral Metastructure
Xia R; Song XK; Sun LJ; Wu WW; Li CL; Cheng TB(程天宝); Qian GA(钱贵安)
2018
会议名称12th International Conference on Optics of Surfaces and Interfaces (OSI)
会议日期JUN 25-30, 2017
会议地点Trin Coll Dublin, Sch Phys, Dublin, IRELAND
会议录名称PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
摘要Chiral metastructures consisting of ring (polygonal or cubic) nodes and elastic bending ligaments exhibit excellent design flexibility for compliant structures. In this paper, based on rigid cubic node rotation and the kinematic geometrical relations of a three-dimensional (3D) isotropic anti-tetrachiral structure, an analytical expression for the modulus of the 3D isotropic anti-tetrachiral structure is derived from strain energy analysis. The nylon powder Selected Laser Sintering (SLS) additive manufacturing technique is employed for fabricating two types of 3D isotropic anti-tetrachiral specimens with different geometrical parameters; then comparison between experiments, finite element analysis (FEA), and theoretical studies is performed for verifying the analytical formula. The mechanical properties of 3D isotropic anti-tetrachiral structures can be tuned with two independent dimensionless geometrical parameters. The proposed 3D anti-tetrachiral structures can be employed for designing advanced structures against impact damages, realizing flexibility of industrial components, and optimizing the vibration attenuation abilities of engineering structures.
关键词3d Anti-tetrachiral Auxetic Isotropic Modulus
资助信息This research is supported by the National Natural Science Foundation of China (Grant no. 11702023), and the 2017 Opening fund of State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences.
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收录类别CPCI-S
语种英语
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文献类型会议论文
条目标识符http://dspace.imech.ac.cn/handle/311007/75549
专题非线性力学国家重点实验室
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GB/T 7714
Xia R,Song XK,Sun LJ,et al. Mechanical Properties of 3D Isotropic Anti-Tetrachiral Metastructure[C],2018.
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