SHPB实验中端面摩擦效应研究

王晓燕; 卢芳云; 林玉亮

doi:10.11883/1001-1455(2006)02-0134-06

SHPB实验中端面摩擦效应研究

doi: 10.11883/1001-1455(2006)02-0134-06

1.
国防科技大学理学院应用物理系，湖南长沙 410073；
2.
中国工程物理研究院流体物理研究所，四川绵阳 621900

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出版历程
- 刊出日期: 2006-03-25

Study on interfacial friction effect in the SHPB tests

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

摘要

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。
- 固体力学 /
- 端面摩擦效应 /
- SHPB实验 /
- 材料性质 /
- 能量守恒法
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.
- solid machanics /
- interfacial friction effect /
- SHPB experiment /
- material properties /
- energy conservation

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