用于软材料的双子弹电磁驱动SHPB系统

谢倍欣 汤立群 姜锡权 史景伦 赵伟健 佘瀚笙 张泳柔 刘逸平 蒋震宇

谢倍欣, 汤立群, 姜锡权, 史景伦, 赵伟健, 佘瀚笙, 张泳柔, 刘逸平, 蒋震宇. 用于软材料的双子弹电磁驱动SHPB系统[J]. 爆炸与冲击, 2019, 39(5): 054101. doi: 10.11883/bzycj-2017-0394
引用本文: 谢倍欣, 汤立群, 姜锡权, 史景伦, 赵伟健, 佘瀚笙, 张泳柔, 刘逸平, 蒋震宇. 用于软材料的双子弹电磁驱动SHPB系统[J]. 爆炸与冲击, 2019, 39(5): 054101. doi: 10.11883/bzycj-2017-0394
XIE Beixin, TANG Liqun, JIANG Xiquan, SHI Jinglun, ZHAO Weijian, SHE Hansheng, ZHANG Yongrou, LIU Yiping, JIANG Zhenyu. A double-striker electromagnetic driving SHPB system for soft materials[J]. Explosion And Shock Waves, 2019, 39(5): 054101. doi: 10.11883/bzycj-2017-0394
Citation: XIE Beixin, TANG Liqun, JIANG Xiquan, SHI Jinglun, ZHAO Weijian, SHE Hansheng, ZHANG Yongrou, LIU Yiping, JIANG Zhenyu. A double-striker electromagnetic driving SHPB system for soft materials[J]. Explosion And Shock Waves, 2019, 39(5): 054101. doi: 10.11883/bzycj-2017-0394

用于软材料的双子弹电磁驱动SHPB系统

doi: 10.11883/bzycj-2017-0394
基金项目: 国家自然科学基金(11472109,11772134);广东省自然科学基金(2015A030311046,2015B010131009)
详细信息
    作者简介:

    谢倍欣(1992- ),男,博士研究生,13mars@163.com

    通讯作者:

    汤立群(1966- ),男,博士,教授,lqtang@scut.edu.cn

  • 中图分类号: O347.3

A double-striker electromagnetic driving SHPB system for soft materials

  • 摘要: 软材料的动态力学性能研究一直备受关注,目前分离式Hopkinson压杆(split Hopkinson pressure bar, SHPB)技术是其最重要的测试手段,然而在测试超软材料时实验装置设计方面仍存在许多有待改进之处。本文中研制了一套双子弹电磁驱动SHPB系统,使用聚碳酸酯作为杆件材料以克服软材料试件带来的诸多困难,引入了双子弹设计方案解决了电磁驱动方式难以应用于非铁磁材料的问题,并有效保证了子弹速度的准确控制。使用双子弹电磁驱动SHPB系统和传统金属SHPB装置同时对硅胶材料的动态力学性能进行了测试,实验结果的吻合性验证了本套系统的可靠性。应用双子弹电磁驱动SHPB系统开展了聚乙烯醇(polyvinyl alcohols, PVA)水凝胶这种超软材料在高应变率下的实验,成功表征出其动态力学性能。
  • 图  1  双子弹驱动装置示意图

    Figure  1.  Schematic diagram of the double-striker driving device

    图  2  电磁驱动装置原理图

    Figure  2.  Schematic diagram of the electromagnetic driving device

    图  3  电磁驱动装置

    Figure  3.  Electromagnetic driving device

    图  4  不同副子弹长度方案下子弹速度与充电电压的关系曲线

    Figure  4.  Relations between striker velocity and charging voltage at two different secondary striker lengths

    图  5  硅胶试件

    Figure  5.  Silicone specimen

    图  6  铝质SHPB系统

    Figure  6.  Aluminum SHPB system

    图  7  双子弹电磁驱动SHPB系统

    Figure  7.  Double-striker electromagnetic driving SHPB system

    图  8  两种不同SHPB系统的测试结果对比

    Figure  8.  Comparison of test results by two different SHPB systems

    图  9  PVA水凝胶试件

    Figure  9.  PVA hydrogel specimen

    图  10  典型的PVA水凝胶SHPB实验应变波形

    Figure  10.  Typical strain waves from an SHPB test of PVA hydrogel

    图  11  PVA水凝胶实验曲线

    Figure  11.  Experimental curves of a PVA hydrogel

    图  12  不应变率下PVA水凝胶的动态应力-应变曲线

    Figure  12.  Dynamic stress-strain curves of PVA hydrogels at different strain rates

    表  1  聚碳酸酯杆件的长度

    Table  1.   Lengths of polycarbonate bars

    组号 子弹长度/mm 入射杆长度/mm 透射杆长度/mm
    1 200 600 300
    2 400 1 000 600
    下载: 导出CSV

    表  2  子弹速度与充电电压的关系

    Table  2.   Relation between striker velocity and charging voltage

    充电电压/V 长200 mm子弹的
    速度/(m·s−1)
    长400 mm子弹的
    速度/(m·s−1)
    充电电压/V 长200 mm子弹的
    速度/(m·s−1)
    长400 mm子弹的
    速度/(m·s−1)
    100 1.52±0.10 1.61±0.08 260 2.86±0.09 4.37±0.08
    120 1.82±0.09 1.91±0.07 280 2.90±0.10 4.44±0.09
    140 1.98±0.09 2.26±0.07 300 3.13±0.11 4.64±0.08
    160 2.14±0.09 2.60±0.08 320 3.19±0.11 4.85±0.10
    180 2.30±0.10 2.97±0.08 340 3.28±0.10 5.07±0.09
    200 2.46±0.10 3.35±0.07 360 3.32±0.11 5.28±0.09
    220 2.55±0.09 3.98±0.07 380 3.52±0.12 5.57±0.10
    240 2.67±0.09 4.17±0.08
    下载: 导出CSV
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出版历程
  • 收稿日期:  2017-10-31
  • 修回日期:  2018-01-04
  • 网络出版日期:  2019-04-25
  • 刊出日期:  2019-05-01

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