G50钢与G31钢动态力学性能的对比试验研究

孔庆强 沈飞 邢逸凡 吕永柱 曹玉武

孔庆强, 沈飞, 邢逸凡, 吕永柱, 曹玉武. G50钢与G31钢动态力学性能的对比试验研究[J]. 高压物理学报, 2021, 35(1): 014103. doi: 10.11858/gywlxb.20200569
引用本文: 孔庆强, 沈飞, 邢逸凡, 吕永柱, 曹玉武. G50钢与G31钢动态力学性能的对比试验研究[J]. 高压物理学报, 2021, 35(1): 014103. doi: 10.11858/gywlxb.20200569
KONG Qingqiang, SHEN Fei, XING Yifan, LÜ Yongzhu, CAO Yuwu. Comparative Experimental Study on Dynamic Mechanical Properties of G50 Steel and G31 Steel[J]. Chinese Journal of High Pressure Physics, 2021, 35(1): 014103. doi: 10.11858/gywlxb.20200569
Citation: KONG Qingqiang, SHEN Fei, XING Yifan, LÜ Yongzhu, CAO Yuwu. Comparative Experimental Study on Dynamic Mechanical Properties of G50 Steel and G31 Steel[J]. Chinese Journal of High Pressure Physics, 2021, 35(1): 014103. doi: 10.11858/gywlxb.20200569

G50钢与G31钢动态力学性能的对比试验研究

doi: 10.11858/gywlxb.20200569
详细信息
    作者简介:

    孔庆强(1983-),男,硕士研究生,工程师,主要从事战斗部结构设计及加工工艺研究. E-mail:colinkqq@163.com

    通讯作者:

    曹玉武(1985-),男,硕士研究生,高级工程师,主要从事战斗部总体设计研究. E-mail:33222800@qq.com

  • 中图分类号: O347

Comparative Experimental Study on Dynamic Mechanical Properties of G50 Steel and G31 Steel

  • 摘要: 采用拉伸、冲击、霍普金森杆压缩及所设计的爆轰加载试验方法,对比研究了G50钢与G31钢在准静态、动态及爆轰加载条件下的力学性能。试验结果表明:G50钢和G31钢在准静态、103 s−1应变率下的动态力学性能相近;在爆轰加载条件下,G50钢和G31钢试样发生了近乎相同的破坏形态,说明在超高压及超高应变率条件下两种材料具有相近的屈服强度和抗拉强度。研究结果表明,G31钢与G50钢有相似的力学性能,在侵彻战斗部壳体方面可做进一步的应用尝试。

     

  • 图  G50钢和G31钢在不同应变率条件下的应力-应变曲线

    Figure  1.  Stress-strain curves of G50 steel and G31 steel in different strain rates

    图  爆轰加载试验方案

    Figure  2.  Scheme of the detonation loading test

    图  仿真计算模型

    Figure  3.  Models of the simulated calculation

    图  爆轰后圆管试样应变云图

    Figure  4.  Strain nephograms of tube specimen after detonation loading

    图  最大应变率曲线

    Figure  5.  Curves of maximum strain rate

    图  爆轰加载试验布局示意图

    Figure  6.  Schematic diagram of detonation loading test

    图  爆轰加载试验布局

    Figure  7.  Layout of detonation loading test

    图  试验后的钢圆管试样

    Figure  8.  Steel pipe after test

    图  钢圆管试样断口形貌

    Figure  9.  Fracture morphology of steel pipe

    表  1  G50钢与G31钢主要化学成分(质量分数)

    Table  1.   Chemical constituents of G50 steel and G31 steel (Mass fraction) %

    MaterialCSiMnNiCrMoNb
    G500.281.900.614.471.020.600.03
    G310.271.300.651.013.320.440.03
    下载: 导出CSV

    表  2  G50钢与G31钢准静态力学性能

    Table  2.   Quasi-static mechanical properties of G50 steel and G31 steel

    MaterialNumber$\sigma $b/MPa$\sigma $s/MPaA/%Z/%αku/(J·cm−2)
    G5011734139813.05083
    21747140911.55688
    31740141612.05378
    G3111733139712.54979
    21752141112.34993
    31738139911.85184
    下载: 导出CSV

    表  3  G50钢和G31钢在不同应变率条件下的应力峰值

    Table  3.   Peak stresses of G50 steel and G31 steel in different strain rates

    Material1100 s−12050 s−13100 s−1
    Peak stress/MPaStrainPeak stress/MPaStrainPeak stress/MPaStrain
    G5022870.069023440.129323920.2852
    G3122940.065223380.134023670.2800
    下载: 导出CSV

    表  4  G50圆管试样参数

    Table  4.   Parameters of G50 tube specimen

    $\;\rho $/(g·cm−3)G/GPaE/GPa$\;\mu $AJC/GPaBJC/GPanJCCJCMJC
    7.8772100.31.391.2260.3560.0051.12
    下载: 导出CSV

    表  5  TNT炸药参数

    Table  5.   Parameters of TNT

    $\;\rho $/(g·cm−3)D/(m·s−1)pCJ/GPaA/GPaB/GPaR1R2$\omega $E0
    1.6693021373.83.7474.150.90.350.06
    下载: 导出CSV

    表  6  爆轰加载试验结果统计

    Table  6.   Statistical results of detonation loading test

    MaterialCrack numberCrack Maximum width/mmCrack length/mmMaximum diameter/mmDeformation rate/%
    G5011.54157.615.2
    G3111.53657.014.0
    下载: 导出CSV
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  • 收稿日期:  2020-06-18
  • 修回日期:  2020-07-03

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