双石英玻璃珠的低速冲击破碎行为

简世豪 苗春贺 张磊 单俊芳 王鹏飞 徐松林

简世豪, 苗春贺, 张磊, 单俊芳, 王鹏飞, 徐松林. 双石英玻璃珠的低速冲击破碎行为[J]. 高压物理学报, 2021, 35(2): 024202. doi: 10.11858/gywlxb.20200629
引用本文: 简世豪, 苗春贺, 张磊, 单俊芳, 王鹏飞, 徐松林. 双石英玻璃珠的低速冲击破碎行为[J]. 高压物理学报, 2021, 35(2): 024202. doi: 10.11858/gywlxb.20200629
JIAN Shihao, MIAO Chunhe, ZHANG Lei, SHAN Junfang, WANG Pengfei, XU Songlin. Fragmentation of Double Quartz Glass Spheres Subjected to Lower-Velocity Impact[J]. Chinese Journal of High Pressure Physics, 2021, 35(2): 024202. doi: 10.11858/gywlxb.20200629
Citation: JIAN Shihao, MIAO Chunhe, ZHANG Lei, SHAN Junfang, WANG Pengfei, XU Songlin. Fragmentation of Double Quartz Glass Spheres Subjected to Lower-Velocity Impact[J]. Chinese Journal of High Pressure Physics, 2021, 35(2): 024202. doi: 10.11858/gywlxb.20200629

双石英玻璃珠的低速冲击破碎行为

doi: 10.11858/gywlxb.20200629
基金项目: 高压物理与地震科技联合实验室开放基金(2019HPPES01);国家自然科学基金(11672286,11872361,11602267)
详细信息
    作者简介:

    简世豪(1995-),男,硕士研究生,主要从事颗粒破碎研究. E-mail:285390814@qq.com

    通讯作者:

    徐松林(1971-),男,博士,研究员,博士生导师,主要从事材料冲击下的动态响应研究.E-mail:slxu99@ustc.edu.cn

  • 中图分类号: O346.13

Fragmentation of Double Quartz Glass Spheres Subjected to Lower-Velocity Impact

  • 摘要: 应用分离式霍普金森压杆(SHPB)加载装置,对直径为8.30、11.68、15.42、17.50 mm的石英玻璃珠开展了冲击速度为5.6~11.5 m/s的双玻璃珠系动态破碎实验。利用高速摄影技术记录双玻璃珠在动态冲击下的破碎过程,结合透射载荷-位移曲线以及破碎产物的粒度分析结果,探讨了石英玻璃双颗粒在冲击下的破坏机制。结果表明:由于双颗粒系中载荷的不均匀特性,两个玻璃珠的破碎具有时序特征,随冲击速度的增加而改变;玻璃珠的冲击破碎源于接触部位局部的Hertz裂纹扩张和裂纹系的扩散,而不是通常认为的贯穿性的斜裂纹体系;瞬态红外测温揭示了玻璃珠冲击破碎的两种主要机制和临界破碎扩散阻力的存在。研究结果对认识脆性颗粒介质的动态破坏机制具有良好的参考意义。

     

  • 图  SHPB实验装置

    Figure  1.  Schematic diagram of the modified SHPB device

    图  结合红外测温的SHPB实验装置

    Figure  2.  Modified SHPB with ITMS

    图  透射载荷-位移关系曲线

    Figure  3.  Transmitted load vs. displacement curves

    图  破碎产物质量分布曲线

    Figure  4.  Mass distribution of fragmentation products

    图  细颗粒产物的体积分布曲线

    Figure  5.  Volume distribution of finer particle products

    图  单颗粒冲击破碎(箭头为冲击方向)[3]

    Figure  6.  Images of single sphere failure under impact (The arrow denotes the impact direction)[3]

    图  双玻璃珠系的冲击破碎(箭头为冲击方向)

    Figure  7.  Images of double spheres failure under impact (The arrow denotes the impact direction)

    图  冲击产生的局部红外温升

    Figure  8.  Local infrared temperature rise generated during impact

    图  破碎阵面

    Figure  9.  Failure wave front

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出版历程
  • 收稿日期:  2020-10-27
  • 修回日期:  2020-11-06

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