中国舰船研究2018，Vol.13Issue(3)：13-22,10.DOI:10.19693/j.issn.1673-3185.01168
水下接触爆炸作用下泡沫夹芯板耗能机理研究
Energy dissipation mechanism of foam sandwich plate subjected to contact underwater explosion
摘要
Abstract
[Objectives] This paper is a study of the energy dissipation mechanism of a foam sandwich plate subjected to contact underwater explosion(contact UNDEX).[Methods] First,a series of contact UNDEX tests of foam sandwich plates is carried out in order to obtain the damage modes, and anti-explosion ability comparisons between sandwich plates and mass-equal solid steel plates with different sandwich configurations are made. Then,the damage processes of foam sandwich plates under contact UNDEX are analyzed through numerical simulation,their damage modes are simulated and the amount of energy dissipated in each sandwich plate section is calculated.[Results] It is concluded from the tests that sandwich plates have superior anti-explosion ability over mass-equal solid steel plates, and sandwich plates with a thin face plate and a thick back plate is the configuration that provides optimal performance. The energy dissipation rate of a sandwich plate is 5%-8% higher than that of a solid plate. [Conclusions] The energy dissipation mechanism of foam sandwich plates subjected to contact UNDEX is discussed on the basis of the test and simulation results. All the results can provide useful references for the anti-explosion protection design of naval ships.关键词
水下接触爆炸/夹芯板/破坏模式/耗能Key words
contact underwater explosion/sandwich plate/damage mode/energy dissipation分类
交通工程引用本文复制引用
赵延杰,郝轶,刘建湖,张攀..水下接触爆炸作用下泡沫夹芯板耗能机理研究[J].中国舰船研究,2018,13(3):13-22,10.基金项目
国家级重大基础研究项目 （）
