Research on Damage of Vessel Walls Caused by Double Fragments Penetration and Coupling Load

doi:10.3969/j.issn.1000-1093.2019.01.019

Abstract

Abstract: To study the damage of front and rear walls caused by double fragments impacting a liquid-filled vessel, ANSYS/LS-DYNA software is used to simulate and verify the damage process through experiments. The effects of kinetic energy, spacing and acting time interval of fragments on the damage of the walls are analyzed. The results show that the deformation of the walls increases with the increase in fragment kinetic energy, and when the wall cracks, the deformation changes faster. Fragment impact point spacing has less influence on the fore-wall and has a greater influence on the rear-wall deformation; and the smaller the fragment spacing is, the greater the wall deformation is. The wall deformation decreases with the increase in the impacting time interval of double fragments; and when the tine interval increases to 0.10 ms, it has no influence on the wall deformation. Key

Key words: fluid-filledvessel, hydrodynamicram, doublefragments, walldamage, numericalsimulation

CLC Number:

TJ012.4

LAN Xiaoying， LI Xiangdong， ZHOU Lanwei， JIYANG Ziyi. Research on Damage of Vessel Walls Caused by Double Fragments Penetration and Coupling Load[J]. Acta Armamentarii, 2019, 40(1): 159-170.

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第40卷第1期
2019 年1月兵工学报ACTA
ARMAMENTARIIVol.40No.1Jan.2019

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