Simulative Analysis and Experimental Test of Composite Fragile Projectile Under Impact Dynamics

doi:10.3969/j.issn.1000-1093.2013.09.001

Abstract

Abstract:

Dynamic mechanics parameters of composite fragile projectile and aviation organic glass areobtained by split Hopkinson press bar (SHPB) experiment. The reasonable material constitutive modelsare chosen to model the fragile projectile and organic glass based on LS-DYNA software. The simulationof the fragmentation process of fragile projectile penetrating target is carried out with smoothed particle hydrodynamics(SPH) method. The influence rule of projectile frangibility and damage performance is researched by analyzing the falling speed and impacting angle of projectile, and the relevant results aresummarized by comparing the fragile and damage performances. Simulation result shows that the perform-ances of fragmentation and penetration increase as the incident velocity increases, and at the same velocity, the performances of fragmentation and penetration under normal penetrating are superior to obliquepenetrating. Numerical simulation and analysis of results offer a theoretical reference for the study offragile projectile.

Key words: ordnance science and technology, fragile projectile, penetration, numerical simulation, fragmentation

CLC Number:

TJ012. 4

RONG Ji-li, LI Jian, LIU Xian-guang, LIN Xian-kun. Simulative Analysis and Experimental Test of Composite Fragile Projectile Under Impact Dynamics[J]. Acta Armamentarii, 2013, 34(9): 1057-1064.

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