Brief review and reconsideration of fatigue crack closure effect in materials
文献类型：期刊论文
| 作者 | D. L. Chen ; B. Weiss ; R. Stickler ; Z. G. Wang |
| 刊名 | Journal of Materials Science & Technology
 |
| 出版日期 | 1997 |
| 卷号 | 13期号:1页码:40922 |
| 关键词 | finite-width stress-ratio threshold growth load plate |
| ISSN号 | 1005-0302 |
| 中文摘要 | The state-of-the-art of fatigue crack closure effect, involving the mechanisms, measurements, models, evaluation methods, influencing factors and existing problems is briefly reviewed. Attention is concentrated on a new consideration of closure effect and a re-definition of the effective driving force for the propagation of a fatigue crack. A theoretical basis for measuring the closure effect is established. The proposed closure concept takes into account the role of the tower portion of loading cycle below the opening load. The conventional closure concept is proven to be correct only for some extreme cases which are practically non-existent for engineering materials. A miniature strain gauge technique is developed to measure the crack closure. Stress-ratio-change tests at threshold level clearly indicate the shortcomings of the conventional closure concept, and the validity of the newly-proposed closure concept. The application of the proposed concept can give rise to a new method for the determination of the effective fatigue threshold of materials. If the fatigue threshold is measured at a sufficiently negative stress ratio (R |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/37939]  |
| 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 | D. L. Chen,B. Weiss,R. Stickler,et al. Brief review and reconsideration of fatigue crack closure effect in materials[J]. Journal of Materials Science & Technology,1997,13(1):40922. |
| APA | D. L. Chen,B. Weiss,R. Stickler,&Z. G. Wang.(1997).Brief review and reconsideration of fatigue crack closure effect in materials.Journal of Materials Science & Technology,13(1),40922. |
| MLA | D. L. Chen,et al."Brief review and reconsideration of fatigue crack closure effect in materials".Journal of Materials Science & Technology 13.1(1997):40922. |
入库方式： OAI收割
来源：金属研究所
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