斜波压缩下HMX晶体的弹塑性行为

种涛 莫建军 郑贤旭 傅华 蔡进涛

种涛, 莫建军, 郑贤旭, 傅华, 蔡进涛. 斜波压缩下HMX晶体的弹塑性行为[J]. 爆炸与冲击, 2021, 41(5): 053101. doi: 10.11883/bzycj-2020-0071
引用本文: 种涛, 莫建军, 郑贤旭, 傅华, 蔡进涛. 斜波压缩下HMX晶体的弹塑性行为[J]. 爆炸与冲击, 2021, 41(5): 053101. doi: 10.11883/bzycj-2020-0071
CHONG Tao, MO Jianjun, ZHENG Xianxu, FU Hua, CAI Jintao. Elastic-plastic transition behaviors of HMX crystal under ramp wave compression[J]. Explosion And Shock Waves, 2021, 41(5): 053101. doi: 10.11883/bzycj-2020-0071
Citation: CHONG Tao, MO Jianjun, ZHENG Xianxu, FU Hua, CAI Jintao. Elastic-plastic transition behaviors of HMX crystal under ramp wave compression[J]. Explosion And Shock Waves, 2021, 41(5): 053101. doi: 10.11883/bzycj-2020-0071

斜波压缩下HMX晶体的弹塑性行为

doi: 10.11883/bzycj-2020-0071
基金项目: 国家自然科学基金(11702276);国防科技重点实验室基金(6142A03192007)
详细信息
    作者简介:

    种 涛(1986- ),男,博士,助理研究员,maoda318@163.com

    通讯作者:

    蔡进涛(1984- ),男,博士,副研究员,goldennoon@163.com

  • 中图分类号: O347.5

Elastic-plastic transition behaviors of HMX crystal under ramp wave compression

  • 摘要: 开展了(010)、(011)晶向HMX晶体的斜波压缩实验,获得了约15 GPa压力下的速度响应剖面。实验结果表明,HMX单晶存在明显弹塑性转变行为,且速度波形有下降趋势,这是材料的黏性效应导致,材料的弹性极限随着样品厚度增加而变化,不同晶向的材料动力学特性存在差异。结合Hobenemser-Prager黏弹塑性本构关系和三阶Birch-Murnaghan物态方程开展了HMX晶体斜波压缩物理过程的数值模拟,计算结果可以很好地描述HMX晶体的弹塑性转变这一物理过程。
  • 图  1  HMX晶体

    Figure  1.  An HMX crystal

    图  2  实验1的速度响应曲线

    Figure  2.  Velocity profiles in experiment 1

    图  3  实验2的速度响应曲线

    Figure  3.  Velocity profiles in experiment 2

    图  4  实验3的速度响应曲线

    Figure  4.  Velocity profiles in experiment 3

    图  5  实验4的速度响应曲线

    Figure  5.  Velocity profiles in experiment 4

    图  6  实验5速度响应曲线

    Figure  6.  Velocity profiles in experiment 5

    图  7  实验6的速度响应曲线

    Figure  7.  Velocity profiles in experiment 6

    图  8  p-V/V0曲线与文献数据结果

    Figure  8.  p-V/V0 curve and literature data

    图  9  Lagrange声速与粒子速度关系曲线

    Figure  9.  Lagrange sound speed-particle velocity

    图  10  弹性极限与样品厚度关系

    Figure  10.  Relationship between elastic limit and sample thickness

    图  11  (010)晶向模拟计算结果与实验结果对比

    Figure  11.  Calculated and experimental data of (010) crystal direction

    图  12  (011)晶向模拟计算结果与实验结果对比

    Figure  12.  Calculated and experimental data of (011) crystal direction

    表  1  实验条件

    Table  1.   Experimental condition

    实验编号晶向样品厚度/mm
    1(011)1.398
    0.984
    2(010)1.262
    0.975
    3(010)1.253
    0.961
    4(010)0.775
    0.913
    5(010)0.593
    0.664
    0.781
    6(011)0.510
    0.663
    0.782
    下载: 导出CSV

    表  2  HMX晶体的屈服

    Table  2.   Yield of HMX crystals

    HMX晶向厚度/mm屈服速度/(m·s−1)弹性极限 /GPa
    (011)1.39867.050.927
    0.51077.631.076
    (010)0.97569.800.966
    1.26270.300.973
    0.96163.901.263
    1.25371.500.990
    0.77563.900.883
    0.91367.100.928
    0.66469.780.966
    0.78159.690.824
    下载: 导出CSV

    表  3  模拟计算所用的模型参数

    Table  3.   Model parameters used in simulation

    晶向σy /GPaG/GPaη/(Pa·s)KT0/GPa$K_{T0}'$
    (010)0.55 7110 9.7515.0
    (011)0.6011 9013.0010.5
    下载: 导出CSV
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出版历程
  • 收稿日期:  2020-03-19
  • 修回日期:  2020-12-04
  • 网络出版日期:  2021-03-18
  • 刊出日期:  2021-05-05

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