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壳装高能固体推进剂的殉爆实验与数值模拟

DOI: 10.3969/j.issn.1006-7043.201403095

Keywords: 固体推进剂, 殉爆, 爆轰, 数值模拟, 殉爆实验, 壳体结构

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Abstract:

随着现代固体推进剂能量的提高和火炸药技术的融合,含有炸药颗粒的高能固体推进剂具有较高的机械感度和冲击波感度,极易发生殉爆现象。为深入探询固体推进剂的殉爆特征,采用实验和数值模拟对比分析方法,研究了某高能固体推进剂的殉爆过程,揭示了壳装高能固体推进剂的殉爆特性。研究发现,由于主发推进剂爆炸冲击波的瞬间冲击作用,造成被发壳体局部破坏形成碎片,碎片高速撞击推进剂药柱颗粒,使被撞击区域热能无法均匀分布,集中在碎片的尖锐棱角或突出处,导致相应质点温度剧增达到临界爆发点,最终导致被发推进剂发生殉爆。

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