| 光通量法在SHPSB剪切应变测量中的应用 |
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| 引用本文： | 赵鹏铎,卢芳云,陈荣,李俊玲,林玉亮,谭多望.光通量法在SHPSB剪切应变测量中的应用[J].爆炸与冲击,2011,31(3):232-236. |
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| 作者姓名： | 赵鹏铎 卢芳云 陈荣 李俊玲 林玉亮 谭多望 |
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| 作者单位： | 国防科学技术大学理学院,湖南长沙,410073;中国工程物理研究院流体物理研究所冲击波物理与爆轰物理国防科技重点实验室,四川绵阳,621900 |
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| 基金项目： | 国家自然科学基金项目(10672177,10872215,10902100)~~ |
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| 摘 要： | 利用光通量方法对分离式霍普金森压剪杆实验技术中的剪切应变测量进行了实验研究。实验装
置主要包括:准直激光器、光电接收器、光学挡板。由装置性能验证实验结果以及不确定度分析结果表明:利
用基于光通量法的剪切应变测量技术能够可靠地测量SHPSB(splitHopkinsonpressurebar)试样的剪切应
变。并对比了基于光通量法测量的剪切应变值与理论近似结果,结果显示前者小于后者,分析并讨论了原因。
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| 关 键 词： | 固体力学 SHPSB 压剪复合加载 光通量法 剪切应变 |
Luminous flux method for measuring shear strain of the specimen in SHPSB |
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| ZHAO Peng-duo,LU Fang-yun,CHEN Rong,LI Jun-ling,LIN Yu-liang,TAN Duo-wang.Luminous flux method for measuring shear strain of the specimen in SHPSB[J].Explosion and Shock Waves,2011,31(3):232-236. |
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| Authors: | ZHAO Peng-duo LU Fang-yun CHEN Rong LI Jun-ling LIN Yu-liang TAN Duo-wang |
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| Institution: | 1.CollegeofScience,NationalUniversityofDefenseTechnology,2.Changsha 410073,Hunan,China; |
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| Abstract: | A technique based on luminous flux method was applied to measure shear strain in SHPSB(split Hopkinson pressure bar) experiment.The optical setup consisted of three major components: a collimation laser,a photoelectric sensing apparatus and two optical baffles.Results from a valid experiment and an uncertainty analysis showed that it was effective and accurate to get the shear strain of the specimen.The shear strain measured by the optical apparatus was compared with the theoretic ones.It was found and anal... |
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| Keywords: | solid mechanics SHPSB combined compression-shear loading luminous flux method shear strain |
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