含孔洞炸药晶体HMX冲击响应的分子动力学模拟OACSTPCD
Molecular Dynamic Studies on the Shock Responses of Energetic Crystal HMX with Cylindrical Voids
动载荷下炸药晶体缺陷与热点形成的关联是当前含能材料领域的研究热点之一,理解热点形成机制及其对炸药起爆和感度的影响对于炸药安全性评估和研制安全弹药至关重要.本研究采用ReaxFF反应力场和分子动力学方法,对含圆柱形孔洞的炸药单晶奥克托金(HMX)在冲击载荷下的动态响应进行了研究,并探究了孔洞尺寸和双孔洞的影响.结果表明,冲击载荷下孔洞的塌缩过程分为3个阶段,即孔洞上游的塑性变形、上游原子向孔洞中心和下游运动形成流动原子、流动原子与下游碰撞.热点形成…查看全部>>
The relationship between crystal defects and hotspots formation of explosives under dynamic loading is a hot research topic in energetic materials.Understanding the mechanism of hotspots formation and its role in the ignition and sensitivity of high explosives are of great importance due to the needs of safety assessment of explosives and developing insensitive munitions.In this work,the ReaxFF reactive force field and molecular dynamics method were applied …查看全部>>
周婷婷;楼建锋
北京应用物理与计算数学研究所,北京 100094北京应用物理与计算数学研究所,北京 100094
武器工业
炸药孔洞热点化学反应分子动力学
explosivevoidhotspotchemical reactionmolecular dynamics
《含能材料》 2024 (1)
65-75,11
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