| SHPB实验中端面摩擦效应研究 |
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| 引用本文： | 王晓燕,卢芳云,林玉亮.SHPB实验中端面摩擦效应研究[J].爆炸与冲击,2006,26(2):134-139. |
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| 作者姓名： | 王晓燕 卢芳云 林玉亮 |
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| 作者单位： | 1.国防科技大学理学院应用物理系，湖南 长沙 410073； |
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| 摘 要： | 选取硅橡胶、聚氨酯泡沫、Comp.B炸药、PBX-HMX(97%)炸药以及6061-T6铝合金五种材料试样，对分离式霍普金森压杆（SHPB）实验技术中的端面摩擦效应进行了研究。实验结果表明，SHPB实验技术中的端面摩擦效应与材料的性质相关。另外，基于各向同性弹性理论，运用能量守恒法对SHPB实验中的端面摩擦效应进行了机理分析，研究表明，材料泊松比、端面摩擦系数、试样长径比、轴向应变是SHPB实验中影响端面摩擦效应的四个因素。
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| 关 键 词： | 固体力学 端面摩擦效应 SHPB实验 材料性质 能量守恒法 |
| 文章编号： | 1001-1455(2006)02-0134-06 |
| 收稿时间： | 01 25 2005 12:00AM |
| 修稿时间： | 12 9 2005 12:00AM |
Study on interfacial friction effect in the SHPB tests |
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| WANG Xiao-yan,LU Fang-yun,LIN Yu-liang.Study on interfacial friction effect in the SHPB tests[J].Explosion and Shock Waves,2006,26(2):134-139. |
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| Authors: | WANG Xiao-yan LU Fang-yun LIN Yu-liang |
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| Institution: | 1.Science college, National University of Defense Technology, Changsha 410073, Hunan, China;2.Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, Sichuan, China |
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| Abstract: | Interfacial friction effects between specimens and bars in SHPB technique were studied.Five materials with different features,silicon rubber,polyurethane foam,Comp.B explosive,PBX-HMX(97%) polymer bonded explosive and 6061-T6 aluminum alloy,were chosed as specimens.Experimental results show that interfacial friction effects in SHPB tests are related with the tested material properties.Based on the isotropic elastic hypothesis,a theoretic analysis is made on an energy conservation consideration.The reduced theoretic formulations show that material Poisson's ratio,interfacial friction coefficient,length-to-diameter ratio of the specimens and axial strains are four influent factors for the friction effects. |
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| Keywords: | solid machanics interfacial friction effect SHPB experiment material properties energy conservation |
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