Knowledge Management System of Institue of Mechanics, CAS
| Experimental and theoretical study on numerical density evolution of short fatigue cracks | |
Fang B(方飙) ; Hong YS(洪友士); Bai YL(白以龙)
| |
| Source Publication | Acta Mechanica Sinica
 |
| 1995 | |
| Volume | 11Issue:2Pages:144-152 |
| ISSN | 0567-7718 |
| Abstract | Fatigue testing was performed using a kind of triangular shaped specimen to obtain the characteristics of numerical density evolution for short cracks at the primary stage of fatigue damage. The material concerned is a structural alloy steel. The experimental results show that the numerical density of short cracks reaches the maximum value when crack length is slightly less than the average grain diameter, indicating grain boundary is the main barrier for short crack extension. Based on the experimental observations and related theory, the expressions for growth velocity and nucleation rate of short cracks have been proposed. With the solution to phase space conservation equation, the theoretical results of numerical density evolution for short cracks were obtained, which were in agreement with our experimental measurements. |
| Keyword | Short Fatigue Cracks Crack Numerical Density Fatigue Damage Evolution |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:A1995RD11400005 |
| WOS Research Area | Engineering ; Mechanics |
| WOS Subject | Engineering, Mechanical ; Mechanics |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/39224 |
| Collection | 力学所知识产出(1956-2008) |
| Recommended Citation GB/T 7714 | Fang B,Hong YS,Bai YL. Experimental and theoretical study on numerical density evolution of short fatigue cracks[J]. Acta Mechanica Sinica,1995,11,2,:144-152. |
| APA | 方飙,洪友士,&白以龙.(1995).Experimental and theoretical study on numerical density evolution of short fatigue cracks.Acta Mechanica Sinica,11(2),144-152. |
| MLA | 方飙,et al."Experimental and theoretical study on numerical density evolution of short fatigue cracks".Acta Mechanica Sinica 11.2(1995):144-152. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| A128.pdf（471KB） | 开放获取 | -- | View Download | |||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment