The Destroy Mechanism Study Of Plate Structure Under Shaped Change

In this paper, the basic theories and the state-of-the-art of research development of shaped charges over the world were introduced briefly first. Then, the background, objective and necessity of the research project for this dissertation were interpreted in details. It is introduced that the massing energy jet flow forming process using the hydromechanics theory. The formation and the termination reason of jet piercing the armor have been analyzed. In this foundation, the simple formula that the massing energy jet destroys to the doubling plates is derived.At the beginning of 1990s, the finite element procedure ANSYS/LS-DYNA has been started in our country widely to use. This article was theoretically first analyzed the ships protection structure monolayer and the multiply plates destruction form as well as the crevasse and so on. Then, using the finite element procedure ANSYS/LS-DYNA, do the numerical simulation about the different shaped charge to penetrate the plates. And it is carried on the contrast with the contact blast.