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含能单晶微纳米力学性能试验研究及数值表征

王昕捷 吴艳青 黄风雷

王昕捷, 吴艳青, 黄风雷. 含能单晶微纳米力学性能试验研究及数值表征[J]. 力学学报, 2015, 47(1): 95-104. doi: 10.6052/0459-1879-14-160
引用本文: 王昕捷, 吴艳青, 黄风雷. 含能单晶微纳米力学性能试验研究及数值表征[J]. 力学学报, 2015, 47(1): 95-104. doi: 10.6052/0459-1879-14-160
Wang Xinjie, Wu Yanqing, Huang Fenglei. NANOINDENTATION EXPERIMENTS AND SIMULATIONS STUDIES ON MECHANICAL RESPONSES OF ENERGETIC CRYSTALS[J]. Chinese Journal of Theoretical and Applied Mechanics, 2015, 47(1): 95-104. doi: 10.6052/0459-1879-14-160
Citation: Wang Xinjie, Wu Yanqing, Huang Fenglei. NANOINDENTATION EXPERIMENTS AND SIMULATIONS STUDIES ON MECHANICAL RESPONSES OF ENERGETIC CRYSTALS[J]. Chinese Journal of Theoretical and Applied Mechanics, 2015, 47(1): 95-104. doi: 10.6052/0459-1879-14-160

含能单晶微纳米力学性能试验研究及数值表征

doi: 10.6052/0459-1879-14-160
基金项目: 国家自然科学基金(11172044)和国防基础科研计划资助(C1520110001)资助项目.
详细信息
    作者简介:

    吴艳青,教授,主要研究方向:含能材料细观爆炸力学. E-mail:wuyqing@bit.edu.cn

  • 中图分类号: O341

NANOINDENTATION EXPERIMENTS AND SIMULATIONS STUDIES ON MECHANICAL RESPONSES OF ENERGETIC CRYSTALS

Funds: The project was supported by the National Natural Science Foundation of China (11172044) and Defense Industrial Technology Development Program (C1520110001).
  • 摘要: 利用微纳米压痕实验测定β-HMX 单晶(010) 晶面和α-RDX 单晶(210) 晶面的力学性能参数和微观破坏特征,并利用数值拟合确定了含能单晶的部分本构参数. 通过微纳米压痕实验连续刚度法(CSM) 得到HMX 单晶和RDX 单晶的弹性模量和硬度,RDX 单晶的硬度和模量都大于HMX 单晶,其硬度值均表现出一定的尺寸效应. 利用原子力显微镜(AFM) 分析了HMX 单晶和RDX 单晶的微观破坏机理,裂纹随着载荷的增大生成并扩展,裂纹面产生方向为晶体的最易解理破坏方向. 利用ABAQUS 有限元软件进行了纳米压痕数值模拟,结合微纳米压痕实验加卸载曲线,选取了合适的含能单晶塑性损伤本构模型的损伤本构参数.

     

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出版历程
  • 收稿日期:  2014-06-04
  • 修回日期:  2014-06-28
  • 刊出日期:  2015-01-18

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