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动高压下HMX各向异性单晶及界面的热力学本构模型 被引量：3

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摘要 由于晶体尺度的力-热耦合效应对炸药复合材料中热点形成的重要性,该文考虑热力学一致性条件,建立了HMX含能单晶动高压的热力学本构模型.利用基于位错动力学的晶体塑性理论,描述含能单晶晶内沿特殊取向择优的塑性行为;并将状态方程引入本构模型描述高压下的非线性弹性.对HMX单晶及两不同取向晶粒/界面的结构,进行一维平面应变冲击加载响应的数值模拟.界面效应采用了内聚力界面本构描述.预测得到的单晶试样粒子速率与文献中实验结果吻合很好,并分析了晶体取向、界面性能、两晶粒相对取向对能量耗散分配及对温度分布的影响.
作者 吴艳青 黄风雷
机构地区 北京理工大学爆炸科学与技术国家重点实验室
出处 《中国科学（G辑）》 CSCD 北大核心 2009年第9期1195-1203,共9页
基金 国家自然科学基金重点项目(批准号:10832003) 北京理工大学爆炸科学与技术国家重点实验室自主基金(编号:YBKT08-07)资助项目
关键词 含能单晶 动高压 晶体塑性 热力学 界面模型
分类号 TQ560.1 [化学工程—炸药化工]
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参考文献26

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同被引文献39

  • 1宁建国,陈龙伟.Euler方法中的模糊界面处理[J].中国科学（E辑）,2004,34(7):776-792. 被引量：12
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引证文献3

二级引证文献6

中国科学（G辑）
2009年 第9期

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