An enhanced FEM model for particle size dependent flow strengthening and interface damage in particle reinforced metal matrix composites
文献类型：期刊论文
| 作者 | J. C. Shao ; B. L. Xiao ; Q. Z. Wang ; Z. Y. Ma ; K. Yang |
| 刊名 | Composites Science and Technology
 |
| 出版日期 | 2011 |
| 卷号 | 71期号:1页码:39-45 |
| 关键词 | Particle-reinforced composites Debonding Strength Modeling strain-gradient plasticity conventional theory behavior deformation aluminum mechanisms |
| ISSN号 | 0266-3538 |
| 中文摘要 | By incorporating the dislocation punched zone model, the Taylor-based nonlocal theory of plasticity, and the cohesive zone model into the axisymmetric unit cell model, an enhanced FEM model is proposed in this paper to investigate the particle size dependent flow strengthening and interface damage in the particle reinforced metal matrix composites. The dislocation punched zone around a particle in the composite matrix is defined to consider the effect of geometrically necessary dislocations developed through a mismatch in the coefficients of the thermal expansion. The Taylor-based nonlocal theory of plasticity is applied to account for the effect of plastic strain gradient which produces geometrically necessary dislocations due to the geometrical mismatch between the matrix and the particle. The cohesive zone model is used to consider the effect of interfacial debonding. Lloyd's experimental data are used to verify this enhanced FEM model. In order to demonstrate flow strengthening mechanisms of the present model, we present the computational results of other different models and evaluate the strengthening effects of those models by comparison. Finally, the limitations of present model are pointed out for further development. (C) 2010 Elsevier Ltd. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/30645]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | J. C. Shao,B. L. Xiao,Q. Z. Wang,et al. An enhanced FEM model for particle size dependent flow strengthening and interface damage in particle reinforced metal matrix composites[J]. Composites Science and Technology,2011,71(1):39-45. |
| APA | J. C. Shao,B. L. Xiao,Q. Z. Wang,Z. Y. Ma,&K. Yang.(2011).An enhanced FEM model for particle size dependent flow strengthening and interface damage in particle reinforced metal matrix composites.Composites Science and Technology,71(1),39-45. |
| MLA | J. C. Shao,et al."An enhanced FEM model for particle size dependent flow strengthening and interface damage in particle reinforced metal matrix composites".Composites Science and Technology 71.1(2011):39-45. |
入库方式： OAI收割
来源：金属研究所
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