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冲击剪切载荷下SiC_P/6151Al复合材料变形局部化及增强颗粒尺寸效应
Localized deformation and particle size-effect in particle-reinforced SiC_P/6151Al composites under impulsive shear loadings
查看参考文献13篇
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文摘
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利用特殊设计的“hat shape”试样，在分离式Hopkinson压杆和MTS通用材料试验机上实验研究了颗粒尺寸和应变率对颗粒增强金属基复合材料（SiC_P/6151Al）变形局部化行为的影响。结果表明：颗粒尺寸对复合材料的变形强化与变形局部化行为有显著影响。具体表现为：颗粒越小，复合材料流动应力越高，即强化效果越好；另一方面，对受载试样的微观检测发现，颗粒越小，复合材料剪切变形局部分越明显。同时发现，冲击载荷（高应变率）下复合材料更容易发生变形局部化。 |
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其他语种文摘
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The effects of the reinforcing particle size and strain rate on deformation localization behavior of SiC_P/6151Al composites are investigated by making use of Split Hopkinson Bar and MTS-810 Materials Testing System with specially-designed hat-shaped specimens, which can produce a shear loading in the specimen. The experimental results demonstrate that the strengthening effect for the small-size particle-reinforced composite is higher than that for the large-size particle-reinforced composite. However, the small-size particle-reinforced composite is more prone to deformation localization than the large-particle composite under impact loading. The mechanisms leading to deformation localization in particle reinforced metal matrix composites are discussed in this paper as well. |
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来源
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复合材料学报
,2002,19(4):51-55 【核心库】
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关键词
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冲击
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金属基复合材料
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变形局部化
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尺寸效应
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地址
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1.
中国科学院力学研究所, 非线性力学国家重点实验室（LNM）, 北京, 100080
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湘潭大学物理系, 湘潭, 411105
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1000-3851 |
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学科
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一般工业技术 |
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基金
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国家自然科学基金
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中国科学院重大项目
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文献收藏号
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CSCD:984263
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参考文献 共
13
共1页
|
|
1.
吴人洁. 金属基复合材料的现状与展望.
金属学报,1997,33(1):78-84
|
被引
100
次
|
|
|
|
|
2.
Clyne T W.
An Introduction to Metal Matrix Composites,1993:1-10
|
被引
3
次
|
|
|
|
|
3.
Zener C. Effect of strain rate upon plastic flow of steel.
J Appl Phys,1944,15(1):22-27
|
被引
646
次
|
|
|
|
|
4.
Rogers H C. Adiabatic shear deformation.
Int Rev Mat Sci,1979,9(1):283-311
|
被引
1
次
|
|
|
|
|
5.
Bai Y L. Thermo-plastic instability in simple shear.
Journal of Mechanics and Physics of Solids,1982,30(1):195-207
|
被引
20
次
|
|
|
|
|
6.
Meyers M A.
Dynamic Behaviors of Materials,1994:448-486
|
被引
1
次
|
|
|
|
|
7.
Ling Z. Experimental study on the formation of shear bands and effect of microstructure in 2124Al/SiC_P composite under dynamic compression.
J de Physique,1994,4(1):453-458
|
被引
1
次
|
|
|
|
|
8.
Chichili D R. Recovery experiments for adiabatic shear localization: a novel experimental technique.
J App Mech,1999,66(1):10-20
|
被引
6
次
|
|
|
|
|
9.
Zhou M. Effects of microstructure on resistance to shear localization for a class of metal matrix composites.
Fatigue & Fracture of Engineering Materials & Structure,1998,21(1):425-438
|
被引
1
次
|
|
|
|
|
10.
Dai L H. A strain gradient-strengthening law for particle reinforced metal matrix composites.
Scripta Materialia,1999,41(3):245-251
|
被引
14
次
|
|
|
|
|
11.
Dai L H. Size-dependent inelastic behavior of particle reinforced metal matrix composites.
Composites Science and Technology,2001,61(5):1057-1063
|
被引
13
次
|
|
|
|
|
12.
Dai L H. Strain gradient effect on initiation of adiabatic shear localization in metal matrix composites.
Key Engineering Materials,2000,177/180:401-406
|
被引
1
次
|
|
|
|
|
13.
Gao H. Mechanism-based strain gradient plasticity I. Theory.
Journal of the Mechanics and Physics of Solids,1999,47(10):1239-1263
|
被引
135
次
|
|
|
|
|
|
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