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| 激光热-力耦合作用引起颗粒增强金属基复合材料的损伤与断裂 | |
| 引用本文： | 龙士国,周益春,段祝平.激光热-力耦合作用引起颗粒增强金属基复合材料的损伤与断裂[J].固体力学学报,2000,21(3):277-281. |
| 作者姓名： | 龙士国 周益春 段祝平 |
| 作者单位： | 1. 湘潭大学物理系,湘潭大学基础力学与材料工程研究所,湖南湘潭,411105 2. 湘潭大学物理系,湘潭大学基础力学与材料工程研究所,湖南湘潭,411105;中国科学院力学研究所,北京,100080 3. 中国科学院力学研究所,北京,100080 |
| 基金项目： | 国家科研项目，中国科学院资助项目，中国科学院资助项目，新材料领域项目，湖南省教育厅科研项目，19891180-4，19772043，K-951-201，，，，，，， |
| 摘 要： | 用激光热冲击作为实验手段，研究了颗粒增强金属基复合材料在热-力耦合作用下的损伤与断裂。在宏观上发现了这种复合材料的破坏效应是热-力耦合的非线性效应。在微观上观察到了微观破坏的三种模式及微观结构对其热冲击性能的影响，同时定量测定了其在不同热-力耦合作用下的损伤程度。 |
| 关 键 词： | 金属基复合材料 热冲击 损伤 破坏 非线性效应 断裂 激光热－力耦合作用 |
| 修稿时间： | 1998-12-01 |
THE DAMAGE AND FAILURE OF PARTICLE REINFORCED METAL MATRIX COMPOSITE INDUCED BY THE COUPLED LOADS OF LASER BEAM-THERMAL SHOCK AND MECHANICAL LOADING |
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| Long Shiguo,Zhou Yichun,Duan Zhuping.THE DAMAGE AND FAILURE OF PARTICLE REINFORCED METAL MATRIX COMPOSITE INDUCED BY THE COUPLED LOADS OF LASER BEAM-THERMAL SHOCK AND MECHANICAL LOADING[J].Acta Mechnica Solida Sinica,2000,21(3):277-281. | |
| Authors: | Long Shiguo Zhou Yichun Duan Zhuping |
| Abstract: | This study investigates the damage and failure of particle reinforced metal matrix composite with two kinds of particle distribution. The damage and failure were induced by the coupled loads of laser beam thermal shock and mechanical loading. It is found that the effect of the thermal shock and mechanical loading on the damage and failure is nonlinear. Three different damage and failure modes are observed. The parameters of damage are detected quantitatively which give a good explaination to the microscopical feature. |
| Keywords: | metal matrix composite thermal shock damage failure nonlinear effect |
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