Experimental study on the combined damage of liquid cabin structure subjected to charge explosion with preset fragments
Experimental study on the combined damage of liquid cabin structure subjected to charge explosion with preset fragments
复制标题
预置破片装药爆炸复合损伤液舱结构实验研究
DOI：
10.1016/j.ijimpeng.2019.04.001
复制
发表时间：
2019-08
影响因子：
5.1
通讯作者：
Li Dian
中科院分区：
文献类型：
--
作者：
Jin Jian;Hou Hailiang;Chen Pengyu;Zhu Xi;Li Dian
液舱结构作为海军舰船多舱室防护结构的重要组成部分，在抗冲击波和高速破片方面起着重要作用。研究了装药爆炸产生的冲击波和破片复合载荷作用下液体舱结构的损伤。通过一系列实验研究了液舱内自由液面和破片类型对结构损伤的影响。此外，为了便于评估结构在复合载荷作用下的失效模式，还对裸爆载荷作用下的液舱进行了评估。利用压力传感器和结构墙体残余位移对试验结果进行了分析。结果表明，自由液面的存在可以减小压力脉动的强度，减小液舱的变形。一个大的钱币状碎片比一个密集的碎片群造成更强的冲击波和更严重的结构破坏。冲击波作用下液体舱前板的变形方向与破片加载方向相反。因此，复合载荷对前板的叠加或强化破坏作用并不明显，破片载荷是引起液舱结构破坏的主要因素。
As an important part of multicompartment protective structure in naval vessels, the structure of liquid cabin plays a major role in resisting blast wave and high-speed fragments. The aim of this study was to evaluate the damage of a liquid cabin structure under combined blast wave and fragment loading created by charge explosion with preset fragments. A series of experiments were conducted to investigate the effects of free surface inside liquid cabin and fragment type on structural damage. Moreover, to facilitate the evaluation of failure modes of structure under combined loading, the liquid cabin under bare blast loading was also assessed. The experimental tests were analyzed using pressure sensors and residual displacement of structure walls. It is shown that free surface can decrease the intensity of pressure pulse and reduce the deformation of liquid cabin. A large nummular fragment caused a stronger shock wave and more severe structural damage than a dense fragment cluster. The deformation direction of front plate of liquid cabin induced by the blast wave is opposite to that of fragment loading. Therefore, the superposed or enhanced damage of combined loading on front plate is not shown, and fragment loading is the main factor causing the damage of liquid cabin structure.
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DOI：
--
发表时间：
1983
期刊：
--
影响因子：
--
作者：
Clark G. Reynolds;N. Friedman
通讯作者：
Clark G. Reynolds;N. Friedman
影响因子：
3.5
作者：
FIELD, JE
通讯作者：
FIELD, JE
DOI：
10.1016/j.ijimpeng.2008.12.009
发表时间：
2009-06-01
影响因子：
5.1
作者：
Disimile, Peter J.;Swanson, Luke A.;Toy, Norman
通讯作者：
Toy, Norman
影响因子：
5.1
作者：
H. Bornstein;P. Phillips;C. Anderson
通讯作者：
H. Bornstein;P. Phillips;C. Anderson
影响因子：
6.3
作者：
Bassim, MN
通讯作者：
Bassim, MN