| Effects of soft hemispherical particle on local surface stress of hard matrix | |
| C. R. Chen; J. F. Lei; S. X. Li; J. L. Wen | |
| 2000 | |
| Source Publication | Materials Science and Technology
 |
| ISSN | 0267-0836 |
| Volume | 16Issue:4Pages:463-468 |
| Abstract | Finite element analysis was performed to investigate the stresses within and around a soft hemispherical particle located on the surface of a hard matrix under a remote external tensile load. The purpose was to understand the effects of neodymium rich particles on the fatigue properties of Ti-55 alloy. Three case studies mere considered. First both particle and matrix mere perfect, second a crack existed within the particle, and third a crack was located in the matrix adjacent to the particle. Numerical results show that soft particles cause stress concentration in regions of the matrix adjacent to the particle, but that such stress concentrations are much weaker than those associated with a cavity. A crack within the particle increases the stress concentration in the matrix only a little when the crack is far from the interface. However, a crack in the matrix significantly increases local stress in the particle. |
| description.department | chinese acad sci, inst met res, state key lab fatigue & fracture mat, shenyang 110015, peoples r china.;chen, cr (reprint author), chinese acad sci, inst met res, state key lab fatigue & fracture mat, shenyang 110015, peoples r china |
| Keyword | Fatigue-crack Initiation Finite-element Deformation Composites Alloy |
| URL | 查看原文 |
| WOS ID | WOS:000086650000015 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/36973 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | C. R. Chen,J. F. Lei,S. X. Li,et al. Effects of soft hemispherical particle on local surface stress of hard matrix[J]. Materials Science and Technology,2000,16(4):463-468. |
| APA | C. R. Chen,J. F. Lei,S. X. Li,&J. L. Wen.(2000).Effects of soft hemispherical particle on local surface stress of hard matrix.Materials Science and Technology,16(4),463-468. |
| MLA | C. R. Chen,et al."Effects of soft hemispherical particle on local surface stress of hard matrix".Materials Science and Technology 16.4(2000):463-468. |
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