The Destroy Mechanism Study Of Plate Structure Under Shock Load

The research on counterexplode and the life force of the warship is valued by every navy great power at all times, and a great deal of manpower, material resources and financial affairs have been devoted to it. With the development of modern aggressive weapon, it seems especially important to study it. Similarly, the problem of how to make use of the regular counterwarship weapon such as missile and fish torpedo, and make the best use of it to damage farthest the warship of the enemy, should be put much attention at the same time. The study on the concussion and the damage impacted by the fight part of the warship, which belong to the regular antiwarship weapon, is the body content of (his paper.At present, most destroy researches of the warship caused by explosive force are focused on the unosculant explode, and the innovative point of this paper lies in the damage case of the double-layer armor plate caused by the osculant explode. The main work of the paper is the damage of the double-layer shell caused by the explosive force. Namely, when the body of the warship is hit by the armour-piercing counterwarship missile, first it acts on the first layer armor plale. and after running through the first layer it comes to the second layer, during the delay time the fightpart is detonated. When the osculant explode acting on the second armor plalc, the whole destroy course is completed.The solution of this article studied in this article was conducted in two ways, one was theory analysis and the other was numerical simulation used by Is-dyna. The destroy shape, the dimension of destroy hole and the bound of elastic and plastic region was gained by the calculatingly result and theory analysis. Theory foundation can be applied by this study for actual application.