摘要
针对芯层为塑性多孔材料的抗冲覆盖层在深水非接触爆炸载荷作用下的有效厚度开展了理论研究。建立了完整的考虑覆盖层大变形、流固耦合效应、空化效应及静水压力作用的理论模型,用以求解覆盖层的有效厚度。分析了冲击环境变化及覆盖层参数变化对有效厚度的影响,得到了覆盖层有效厚度估算公式。研究结果为多孔覆盖层用于深水爆炸冲击防护的设计提供了工程估算方法。
This paper was devoted to derive an explicit expression of the effective foam thickness subjected to deep underwater explosion. One-dimensional analytical model considering the large deformation of cladding,fluid-structure interaction,the cavitation phenomenon and the initially applied hydrostatic pressure was built up to calculate the effective foam thickness. The results provide an engineering estimating method for the design of such cellular claddings under deep water blast.
出处
《振动与冲击》
EI
CSCD
北大核心
2017年第22期59-64,124,共7页
Journal of Vibration and Shock
基金
国家自然科学基金(11272215)
关键词
水下爆炸
多孔覆盖层
有效厚度
工程估算方法
underwater explosion
cellular cladding
effective foam thickness
engineering estimating method
