摘要
将纯铝用熔喷法制成铝纤维添加到炸药中,得到新型非理想混合炸药,通过水中爆炸实验,测试不同位置铝纤维炸药的压力时程曲线。对压力时程曲线进行分析,计算得到水下不同位置铝纤维炸药的冲击波压力峰值、冲量、冲击波能和气泡能。结果表明：铝纤维炸药的压力时程曲线可采用指数函数与双曲线函数进行分段描述,而用正态分布函数拟合气泡脉动压力曲线的效果不理想;铝纤维炸药水下爆炸比气泡能与总能量的比值为52%～58%,说明向基体炸药RDX中添加铝纤维对总能量有影响;总能量与爆热的比值为75%～85%,小于理论近似值（100%）,说明铝纤维炸药爆炸时铝纤维反应不完全且破碎铝纤维消耗了一定的能量。
Aluminum fiber explosive containing explosive and aluminum fiber which is made from pure aluminum is a novel non-ideal explosive. Pressure-time curves of aluminium fiber explosive at different positions were measured by underwater explosion experiments. The peak pressure, impulse, shock wave energy and bubble energy were obtained by analyzing the pressure-time curves. Pressure-time curves can be described by exponential and hyperbolic function at distinct stages. The fitting effect of bubble oscillation curve using normal distribution function is not ideal. That specific bubble energy is 52%-58% of the explosion energy, which shows the effect of adding fiber. The explosive energy declines to 75%-85% of the explosion heat because of the imperfect reaction and crushing energy cost of Al fiber.
出处
《高压物理学报》
CAS
CSCD
北大核心
2014年第5期557-563,共7页
Chinese Journal of High Pressure Physics
基金
国家自然科学基金重点项目(51134012)
国家自然科学基金面上项目(51174183)
关键词
铝纤维炸药
非理想炸药
压力时程曲线
气泡脉动
总能量
aluminum fiber explosive
non-ideal explosive
pressure-time curve
bubble oscillation
explosive energy
作者简介
林谋金（1985-），男，博士研究生，主要从事含能材料及爆炸力学相关领域研究．E-mail：lmj2012pt@163．com
通讯作者：马宏昊（1980-），男，博士，副教授，主要从事爆破器材与工业安全及爆炸力学相关领域研究．E-mail：hhma@ustc．edu．cn
