基于SHPB的球形压痕实验方法

梁浩哲 宋力

梁浩哲, 宋力. 基于SHPB的球形压痕实验方法[J]. 爆炸与冲击, 2014, 34(6): 673-678. doi: 10.11883/1001-1455(2014)06-0673-06
引用本文: 梁浩哲, 宋力. 基于SHPB的球形压痕实验方法[J]. 爆炸与冲击, 2014, 34(6): 673-678. doi: 10.11883/1001-1455(2014)06-0673-06
Liang Hao-zhe, Song Li. A method of spherical indentation experiment based on the split Hopkinson pressure bar system[J]. Explosion And Shock Waves, 2014, 34(6): 673-678. doi: 10.11883/1001-1455(2014)06-0673-06
Citation: Liang Hao-zhe, Song Li. A method of spherical indentation experiment based on the split Hopkinson pressure bar system[J]. Explosion And Shock Waves, 2014, 34(6): 673-678. doi: 10.11883/1001-1455(2014)06-0673-06

基于SHPB的球形压痕实验方法

doi: 10.11883/1001-1455(2014)06-0673-06
基金项目: 国家自然科学基金项目(11272162)
详细信息
    作者简介:

    梁浩哲(1988-), 男, 硕士研究生

  • 中图分类号: O347

A method of spherical indentation experiment based on the split Hopkinson pressure bar system

Funds: Supported bythe National Natural Science Foundationof China (11272162)
More Information
    Corresponding author: Liang Hao-zhe, haozheliang2010@yeah.net
  • 摘要: 提出一种基于霍普金森压杆装置的动态球形压痕实验方法,通过将硬质合金小球置于2个试件中间,实现加载过程中2个试件的同时压入,以得到准确的压痕力与位移的关系。利用有限元软件ABAQUS/Explicit对该实验方法进行了数值模拟,从实验结果的可行性、准确性等方面,对新实验方法与传统的动态压痕实验方法进行了比较;采用新方法对铝合金材料进行了实验,并得到了压入力-位移曲线等关系。研究结果表明:采用新实验方法能得到较准确的结果,能较真实地描述压痕过程。
  • 图  1  动态压痕实验装置

    Figure  1.  Device for dynamic indentation experiment

    图  2  试件加载方式和位移测量基准点

    Figure  2.  Specimen loading patterns and reference points for displacement measurement

    图  3  计算压痕深度与基准点测量压痕深度比较(Nilsson方法)

    Figure  3.  Calculated indentation depths compared with the ones measured from the refence points (in Nillson's method)

    图  4  计算压痕深度与基准点测量压痕深度比较(本文方法)

    Figure  4.  Calculated indentation depths compared with the ones measured from the refence points (in this paper)

    图  5  采用本文方法得到接触过程中的Misses应力云图

    Figure  5.  Misses stress contours in the contact process using the method in this paper

    图  6  实验波形图

    Figure  6.  Experimental waveforms

    图  7  双试件新方法的波形处理结果

    Figure  7.  Waveforms aquired by using the new method with double specimens

    表  1  杆件及试件的弹性参数

    Table  1.   Elastic constants of the bars and the specimens

    材料E/GPaμρ/(g·m-3)
    60Si2Mn2060.297.80
    45钢2100.297.80
    铝合金710.282.70
    碳化钨4500.2818.00
    下载: 导出CSV

    表  2  试件的J-C本构参数

    Table  2.   J-C constants of specimens

    材料A/MPaB/MPaCnm
    45钢1 1507390.0140.261.03
    铝合金3696840.008 30.731.70
    下载: 导出CSV
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出版历程
  • 收稿日期:  2013-04-25
  • 刊出日期:  2014-11-25

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