| 金属陶瓷功能梯度材料的颗粒界面断裂能量释放率与临界颗粒尺寸的研究 |
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| 引用本文： | 王富耻,王鲁,吕广庶. 金属陶瓷功能梯度材料的颗粒界面断裂能量释放率与临界颗粒尺寸的研究[J]. 复合材料学报, 2000, 17(1): 86-88 |
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| 作者姓名： | 王富耻 王鲁 吕广庶 |
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| 作者单位： | 北京理工大学材料科学与工程系, 北京100081 |
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| 基金项目： | 国防科技九五预研重点项目资助! ( 12 .4.3 .1) |
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| 摘 要： | 研究了功能梯度材料富陶瓷区金属颗粒界面断裂能量释放率。文中采用双层嵌套模型给出了金属颗粒界面的热应力与金属体积浓度的关系, 对于得到的每一梯度层中的颗粒界面热应力, 分析了颗粒界面断裂能量释放率,并研究了每一梯度层中金属颗粒的临界尺寸变化规律。
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| 关 键 词： | 功能梯度材料 金属颗粒 界面 热应力 能量释放率 临界颗粒尺寸 |
| 文章编号： | ： |
| 收稿时间： | 1998-08-03 |
| 修稿时间： | 1998-11-05 |
STUDY ON THE ENERGY RELEASE RATE FOR THE PARTICLE/MATRIX INTERFACE AND CRITICAL PARTICLE SIZE OF FUNCTIONALLY GRADIENT MATERIALS |
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| WANG Fu-chi,WANG Lu,LU Guang-shu. STUDY ON THE ENERGY RELEASE RATE FOR THE PARTICLE/MATRIX INTERFACE AND CRITICAL PARTICLE SIZE OF FUNCTIONALLY GRADIENT MATERIALS[J]. Acta Materiae Compositae Sinica, 2000, 17(1): 86-88 |
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| Authors: | WANG Fu-chi WANG Lu LU Guang-shu |
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| Affiliation: | Department of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | The study on the energy release rate for cracks propagating of particle and matrix interface in Functionally Gradient Materials (FGM) was carried out. The thermal stress for the matrix particle interface was calculated using Double Layer Embedment model, also the relation between the stress and metal volume fraction was obtained,and then the energy release rate and the change of critical particle size(radius) in the graded layers were given. |
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| Keywords: | Functionally Gradient Materials (FGM) particle interface thermal stress energy release rate critical particle size(radius) |
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