Response of Chiral Auxetic Composite Sandwich Panel to Fragment Simulating Projectile Impact

被引：26
|
作者：
Novak, Nejc [1 ]
Vesenjak, Matej [1 ]
Kennedy, Gregory [2 ]
Thadhani, Naresh [2 ]
Ren, Zoran [1 ]
机构：
[1] Univ Maribor, Fac Mech Engn, Maribor 2000, Slovenia
[2] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA
来源：
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2020年 / 257卷 / 10期
关键词：
auxetic materials; ballistic loading; cellular materials; composites; projectiles; sandwich panels; MM DIAMETER PROJECTILES; THICK STEEL PLATES; BLAST RESPONSE; PERFORATION; DEFORMATION; PERFORMANCE; BEHAVIOR; FLAT;
D O I：
10.1002/pssb.201900099
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The chiral auxetic cellular structures are fabricated using SEBM (selective electron beam melting) method and tested under compressive loading. The results of experimental testing are used for validation of the computational model in LS-DYNA. Furthermore, ballistic velocity and deformation behaviour of monolithic aluminium (Al 7075-T651) and titanium (Ti-Gr.37) cover plates of composite sandwich panels are experimentally evaluated using a gas gun setup and fragment simulating projectile (FSP). The experimental results are used for validation of computational model of cover plates, which is further used for development of computational model of auxetic composite sandwich panel. It is shown that by using the auxetic sandwich panel, the ballistic performance is enhanced in comparison to the monolithic cover plates.
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页数：6
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