| Effects of stress ratio on crack growth rate and fatigue strength for high cycle and very-high-cycle fatigue of metallic materials | |
Sun CQ(孙成奇) ; Lei ZQ(雷铮强); Hong YS(洪友士); Hong, YS (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
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| Source Publication | Mechanics of Materials
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| 2014-02 | |
| Volume | 69Issue:1Pages:227-236 |
| ISSN | 0167-6636 |
| Abstract | This paper studies the effects of stress ratio R on crack growth rate and fatigue strength for high cycle and very-high-cycle fatigue of metallic materials. First, the effect of R on fatigue crack growth rate is analyzed, and the result shows that the effect of R on crack growth rate at near-threshold region and on Paris region is well expressed by a unified relation. Then, a model is developed for describing the fatigue crack growth rate with the effect of R in near-threshold region and Paris region. The model is verified by experimental data of metallic materials in literature. Finally, a formula is derived for the effect of R on fatigue strength. The estimated results are in good agreement with the experimental data for high cycle and very-high-cycle fatigue regime in literature. The comparison of the present result with Goodman diagram is also discussed. (C) 2013 Elsevier Ltd. All rights reserved. |
| Keyword | Surface Hardness Sulfate Attack Concrete Damage Evolution |
| Subject Area | Materials Science ; Mechanics |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000331352000018 |
| Funding Organization | The project was supported by the National Natural Science Foundation of China (11202210, 11172304 and 11021262) and by the National Basic Research Program of China (2012CB937500). |
| Department | LNM金属材料微结构与力学性能 |
| Classification | 一类 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/48774 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | Hong, YS (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. |
| Recommended Citation GB/T 7714 | Sun CQ,Lei ZQ,Hong YS,et al. Effects of stress ratio on crack growth rate and fatigue strength for high cycle and very-high-cycle fatigue of metallic materials[J]. Mechanics of Materials,2014,69,1,:227-236. |
| APA | Sun CQ,Lei ZQ,Hong YS,&Hong, YS .(2014).Effects of stress ratio on crack growth rate and fatigue strength for high cycle and very-high-cycle fatigue of metallic materials.Mechanics of Materials,69(1),227-236. |
| MLA | Sun CQ,et al."Effects of stress ratio on crack growth rate and fatigue strength for high cycle and very-high-cycle fatigue of metallic materials".Mechanics of Materials 69.1(2014):227-236. |
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