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Damage Effect and Parametric Sensitivity Research of Different Aggregate Composite Target Subjected to Projectile Penetration

LIANG BIN, JIEQUN ZHOU, YONGGANG LU, GAOPENG FENG

Abstract


In order to study the damage effect of aggregate composite target, a 3D microscopic numerical model of composite material which was composed by randomly embedded metallic particle, mortar as well as their adhesive transition layer has been built up by using the specific meso-structure characteristic of composite target and background grid method. On this basis, the meso-scale numerical simulation has been performed to the process of projectile penetration to composite target by using dynamic finite element method. Meanwhile the orthogonal testing method has been adapted specially to making statistic analysis about the influence of three parameters—impact velocity, aggregate strength and aggregate modulus to penetration damage effect. The major parameters and the relationship of parametric sensitivity related to damage effect have been primarily concluded. The results are capable to provide technical support for damage assessment of penetration trajectory deviation, energy loss as well as the design of penetrator warhead.


DOI
10.12783/ballistics2017/17038

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