Ballistic performances of the hourglass lattice sandwich structures under high-velocity fragments

被引：5
作者：
Wu, He-xiang [1 ,2 ]
Qu, Jia [1 ]
Wu, Lin-zhi [1 ]
机构：
[1] Harbin Engn Univ, Coll Aerosp & Civil Engn, Key Lab Adv Ship Mat & Mech, Harbin 150001, Peoples R China
[2] Northeast Forestry Univ, Sch Civil Engn, Harbin 150040, Peoples R China
来源：
DEFENCE TECHNOLOGY | 2024年 / 31卷
关键词：
Hourglass lattice sandwich structures; Ballistic performances high-velocity; Finite element analysis; CONCRETE TARGETS; COMPRESSIVE STRENGTH; ENERGY-ABSORPTION; DYNAMIC-RESPONSE; COLLAPSE MODES; FOAM CORE; IMPACT; BEAMS; DENSITY; DESIGN;
D O I：
10.1016/j.dt.2023.01.004
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, the numerical simulation method is used to study the ballistic performances of hourglass lattice sandwich structures with the same mass under the vertical incidence of fragments. Attention is paid to elucidating the influences of rod cross-section dimensions, structure height, structure layer, and rod inclination angle on the deformation mode, ballistic performances, and ability to change the ballistic direction of fragments. The results show that the ballistic performances of hourglass lattice sandwich structures are mainly affected by their structural parameters. In this respect, structural parameters optimization of the hourglass lattice sandwich structures enable one to effectively improve their ballistic limit velocity and, consequently, ballistic performances. (c) 2023 China Ordnance Society. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/).
引用
收藏
页码：312 / 325
页数：14
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