Numerical simulation on the damage of a naval gun fragment projectile to anti-ship missile
In order to study the damage law of the naval gun fragment projectile to anti-ship missile,the numerical model of fragment projectile damaging anti-ship missile is established by using finite element software.The influence of pro-jectile velocity on fragment formation law in dynamic detonation process are analyzed.The dynamic impact characteristics of fragment projectile to anti-ship missile are discussed during the damage process.The results show that compared to static detonation,dynamic detonation fragments can dispersed in a jet like manner;As the projectile velocity decreases,the velo-city of the formed fragments decreases significantly,but the velocity increment of the fragments group driven by explosives increases gradually;At the same time,the fragments velocity curves of different velocity projectiles show a trend of rapid rise,fluctuating rise and tending to stabilize,but the impact of projectile velocity is significantly different in the fast rising stage;The damage forms of fragment group mainly include four situations:penetration,penetration following,cutting and jumping,and not encountering.The proportion of penetrating fragments in 1/4 projectile is 5.5％,and the proportion of ef-fective fragments is 38％.
the fragment projectileanti-ship missiledynamic detonationfragment groupdamage
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