复杂载荷下PBX损伤与热点：机理、试验与表征研究进展

吴磊; 屈可朋; 谭淼; 姚昕

doi:10.19554/j.cnki.1001-3563.2026.09.001

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包装工程（技术栏目） ›› 2026, Vol. 47 ›› Issue (9) : 1-13. DOI: 10.19554/j.cnki.1001-3563.2026.09.001

强动载下弹药响应与防护技术

复杂载荷下PBX损伤与热点：机理、试验与表征研究进展

吴磊, 屈可朋^*, 谭淼, 姚昕

作者信息 +

Research Progress on Damage and Hot Spots in PBX under Complex Loading: Mechanisms, Experiments, and Characterization

WU Lei, QU Kepeng^*, TAN Miao, YAO Xin

Author information +

文章历史 +

摘要

目的研究复杂载荷下PBX的损伤演化与热点形成,对理解其在生产、储存、运输以及服役全寿命周期中的能量吸收与损伤行为,进一步提升武器弹药的安全性具有重要意义。方法从损伤演化与热点形成机理、多场耦合加载技术以及多尺度表征技术等3个方面介绍复杂载荷下PBX损伤演化与热点形成的研究进展。首先探讨损伤在炸药晶体、黏结剂及界面中的演化过程;其次,梳理适用于PBX的各种热点机制,并分析多场耦合作用通过改变能量耗散路径对炸药点火的影响;针对不同应变率加载下的多场耦合技术以及损伤与热点演化的多尺度表征手段进行总结。结论复杂载荷通过重构能量耗散路径,形成以剪切带主导的局域化损伤;现有加载技术难以实现三场独立同步控制,多尺度表征手段之间存在时空分辨率鸿沟;建立多机制耦合点火判据和发展多模态原位同步表征技术是未来的核心挑战。

Abstract

The work aims to investigate the damage evolution and hot spot formation of polymer bonded explosive (PBX) under complex loading to understand its energy absorption and damage behavior across the entire life cycle, including production, storage, transportation, and service, thereby improving the safety of weapons and ammunition. Advances in the study of damage evolution and hot spot formation in PBX under complex loading were reviewed from three perspectives: damage evolution and hot spot formation mechanisms, multi-field coupled loading techniques, and multi-scale characterization techniques. Firstly, the evolution of damage in explosive crystals, binders, and interfaces was examined. Then, various hot spot mechanisms applicable to PBX were summarized, along with an analysis of how multi-field coupling influences explosive ignition by altering energy dissipation pathways. Techniques for multi-field coupling under different strain rate loading and multi-scale characterization approaches for tracking damage and hot spot evolution were also discussed; In conclusion, complex loading restructures energy dissipation pathways, leading to shear band-dominated localized damage. Current loading techniques cannot yet achieve independent and simultaneous control of three fields, and a gap in spatial and temporal resolution remains among multi-scale characterization methods. Establishing a multi-mechanism coupled ignition criterion and developing multi-modal in-situ synchronous characterization techniques are the core challenges for the future.

导出引用

吴磊, 屈可朋, 谭淼, 姚昕. 复杂载荷下PBX损伤与热点：机理、试验与表征研究进展[J]. 包装工程. 2026, 47(9): 1-13 https://doi.org/10.19554/j.cnki.1001-3563.2026.09.001

WU Lei, QU Kepeng, TAN Miao, YAO Xin. Research Progress on Damage and Hot Spots in PBX under Complex Loading: Mechanisms, Experiments, and Characterization[J]. Packaging Engineering. 2026, 47(9): 1-13 https://doi.org/10.19554/j.cnki.1001-3563.2026.09.001

中图分类号： TB33

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