Ballistic behavior of steel sheet subjected to impact and perforation

被引:25
作者
Jankowiak, Tomasz [1 ]
Rusinek, Alexis [2 ]
Kpenyigba, K. M. [2 ]
Pesci, Raphael [3 ]
机构
[1] PUT, Inst Struct Engn, Poznan, Poland
[2] Natl Engn Sch Metz, LaBPS, Metz, France
[3] ENSAM Arts & Metiers ParisTech CER Metz, UMR CNRS LEM3 7239, Metz, France
关键词
impact; perforation; dynamic failure; experiment; simulation; impact force; CONSTITUTIVE RELATIONS; PERPENDICULAR IMPACT; CONICAL PROJECTILE; DYNAMIC-BEHAVIOR; STRAIN RATES; DIAMETER; PLATES; TEMPERATURES;
D O I
10.12989/scs.2014.16.6.595
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
The paper is reporting some comparisons between experimental and numerical results in terms of failure mode, failure time and ballistic properties of mild steel sheet. Several projectile shapes have been considered to take into account the stress triaxiality effect on the failure mode during impact, penetration and perforation. The initial and residual velocities as well as the failure time have been measured during the tests to estimate more physical quantities. It has to be noticed that the failure time was defined using a High Speed Camera (HSC). Thanks to it, the impact forces (average and maximum level), were analyzed using numerical simulations together with an analytical description coupled to experimental observations. The key point of the model is the consideration of a shape function to define the pulse loading during perforation.
引用
收藏
页码:595 / 609
页数:15
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