Ballistic Impact of Flat-Ended Projectiles against 2024-T351 Plate: Experiments and Modeling

被引：5

作者：

Edwards, Nathan J. ^{[1
,2
]}

Cimpoeru, Stephen J. ^{[3
]}

Herzig, Norman ^{[4
]}

Ruan, Dong ^{[1
]}

机构：

[1] Swinburne Univ Technol, Sch Engn, Dept Mech & Prod Design Engn, 24 Wakefield St, Hawthorn, Vic 3122, Australia

[2] DMTC Ltd, 24 Wakefield St, Hawthorn, Vic 3122, Australia

[3] Def Sci & Technol Grp, 506 Lorimer St, Fishermans Bend, Vic 3207, Australia

[4] Nordmetall GmbH, Adorfer Hauptstr 16, D-09221 Neukirchen, Germany

来源：

JOURNAL OF AEROSPACE ENGINEERING | 2022年 / 35卷 / 01期

关键词：

Ballistic impact; Flat-ended projectiles; Generalized incremental stress-state model (GISSMO); Adiabatic shear bands; Numerical simulation; STEEL PLATES; FRACTURE MODELS; PLASTIC-FLOW; ALUMINUM; FAILURE; STRENGTH; STRAIN; PERFORATION; DIAMETER;

D O I：

10.1061/(ASCE)AS.1943-5525.0001378

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

Flat-ended projectiles were used to impact three distinct thicknesses of 2024-T351 plate. Ballistic limit velocities were determined, and optical microscopic examination revealed evidence of adiabatic shear bands within the impacted plates, which can result in a low-energy failure mechanism and reduced ballistic performance. A two-dimensional axisymmetric numerical model was developed in LS-DYNA to model the impacts using the generalized incremental stress state model (GISSMO). This provided an improved understanding of the formation of adiabatic shear bands in the aluminum and how adiabatic shear failure can be predicted using an instability criterion.

引用

页数：15

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