Structure Design and Energy Absorption Mechanism of a New Type of Armor Inspired from Armadillos

作     者：Chunan Du Gang Yang De’an Hu Xu Han Chunan Du;Gang Yang;De'an Hu;Xu Han

作者机构：Key Laboratory of Advanced Design and Simulation Techniques for Special EquipmentMinistry of EducationHunan UniversityChangsha410082China School of Mechanical EngineeringHebei University of TechnologyTianjin300401China 

基　　金：The supports from the foundation(JCKY2019110D008) the Foundation for Innovative Research Groups of the National Natural Science Foundation of China(Grant No.51621004 are gratefully acknowledged 

出 版 物：《Acta Mechanica Solida Sinica》 (固体力学学报（英文版）)

年 卷 期：2021年第34卷第5期

页      码：718-728页

摘      要：Dermal armor,such as fish scales or armadillo osteoderms,has been known to exhibit high performance and good flexibility defending against *** top layer of the dermal armor usually consists of a segmented hard bony *** soft inner layer composed of collagen fibers connects and holds the hard *** by the dermal armor of armadillos,bioinspired protection armor is studied for impact *** hexagonal scales tessellate the surface continuously and work as the hard bony layer protecting the soft inner layer from ***-high molecular weight polyethylene(UHMWPE)is used as the connectivity layer to support and hold the *** investigate the dynamic response of the bioinspired protection armor,drop weight impact tests are carried out.A finite element model is established to study the dynamic response of bioinspired protection *** impact process images captured by a high speed camera and the experimental data of drop hammer acceleration tests verify the validity of the numerical *** dynamic resistance behavior and the synergy effect of each part of the bioinspired protection armor combined with the protected objects are studied in detail by numerical *** results show that the bioinspired protection armor has marked energy absorption ability.A synergistic dissipation mechanism is activated in the impact process,which can dissipate impact energy and make the impact load distribution more *** UHMWPE between the outer layer and the soft substrate plays a significant role not only related to support and connection,but also for the force balance and energy *** mechanism of energy absorption of the bioinspired protection armor revealed in this paper can be taken as a new guideline for designing a novel protective armor.

主 题 词：Bioinspired Armor Impact Energy absorption Numerical simulation 

学科分类：08[工学] 080102[080102] 0801[工学-力学类] 

核心收录：

D　O　I：10.1007/s10338-021-00241-z

馆 藏 号：203103362...