含能材料2011，Vol.19Issue(3)：315-320,6.DOI:10.3969/j.issn.1006-9941.2011.03.016
泡沫铝壳对水下爆炸冲击波衰减的影响
Influence of Aluminum Foams Shell on Shock Attenuation Underwater Explosions
摘要
Abstract
In order to study shock attenuation in aluminum foams,the different thickness of aluminum foam shells were made,shock attenuation in its was preliminarily investigated. Two types of PETN charges were used,one is the PETN itself,the others are confined by aluminum foam shell with thickness of 1.5 cm,2.5 cm and 3.5 cm. The shock wave pressure-time curves were obtained at O. 5 m away from the charge. The experimental data analysis show that aluminum foams shell not only can weaken the peak pressure, but also effectively absorbs the specific impulse and the specific energy of shock wave. Moreover, the whole deforming, crushing and moving processes of the shells were recorded by the underwater camera system. Results show that the attenuation of shock pressure,specific impulse and specific energy in aluminum foams shell was induced by itself deformation and breakup. At the same time,the thickness of aluminum foams shell impacted on the shock attenuation in aluminum foams.关键词
爆炸力学/泡沫铝壳/水下爆炸/冲击波衰减/峰值压力/水下摄影Key words
explosion mechanics/ aluminum foam shell/ underwater explosion/ shock wave attenuation/ peak pressure/ underwater camera分类
军事科技引用本文复制引用
倪小军,沈兆武,杨昌德..泡沫铝壳对水下爆炸冲击波衰减的影响[J].含能材料,2011,19(3):315-320,6.基金项目
安徽省教育厅安徽省高等学校省级自然科学研究项目重大项目(编号:KJ2010ZD03) （编号:KJ2010ZD03）
