 | | Mechanics of Solids
A Journal of Russian Academy of Sciences | | Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
Online ISSN 1934-7936 |
Archive of Issues
| Total articles in the database: | | 13362 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8178
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| In English (Mech. Solids): | | 5184 |
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| Jun-Ming Ge, Jian Li, Tao Sun, Xun Zhao, and Jun Xia, "Research on the Effect of Elliptical Hole on Localized Cyclic Deformation Near Crack Tip Considering Multi-Parameter," Mech. Solids. 60 (5), 4295-4316 (2025) |
| Year |
2025 |
Volume |
60 |
Number |
5 |
Pages |
4295-4316 |
| DOI |
10.1134/S0025654425601739 |
| Title |
Research on the Effect of Elliptical Hole on Localized Cyclic Deformation Near Crack Tip Considering Multi-Parameter |
| Author(s) |
Jun-Ming Ge (Institute of Structural Health Monitoring, Faculty of Civil Engineering and Mechanics, Jiangsu University, Zhenjiang, 212013 China)
Jian Li (Institute of Structural Health Monitoring, Faculty of Civil Engineering and Mechanics, Jiangsu University, Zhenjiang, 212013 China, lj66@ujs.edu.cn)
Tao Sun (Institute of Structural Health Monitoring, Faculty of Civil Engineering and Mechanics, Jiangsu University, Zhenjiang, 212013 China)
Xun Zhao (Institute of Structural Health Monitoring, Faculty of Civil Engineering and Mechanics, Jiangsu University, Zhenjiang, 212013 China)
Jun Xia (Institute of Structural Health Monitoring, Faculty of Civil Engineering and Mechanics, Jiangsu University, Zhenjiang, 212013 China) |
| Abstract |
In this paper, a finite element model of single-edge notched compact tensile specimen containing elliptical hole is established considering the effects of elliptical hole geometrical parameters (horizontal spacing d, vertical spacing h, and inclination angle θ) and loading conditions (load ratio R, load amplitude ΔF) in the TC4ELI titanium alloy. The evolution of the shape of the cyclic plastic zone at the crack tip, the response of crack deflection angle (θc) are quantitatively revealed. Study shows that: elliptical hole produce crack path attraction through the stress field gradient effect, attracting crack deflection, and the strength of its action is negatively correlated with the hole-crack tip relative distance (d, h), where the attraction is strongest at h=0 mm, d=0.3 mm and θ=90°. High load amplitude ΔF and high load ratio R significantly increase the crack tip plastic zone area and plastic strain accumulation, and it also exacerbates the crack steering phenomenon. The existence of elliptical hole has an effective effect on crack deflection through the crack steering mechanism, especially at high load ratio and high load amplitude conditions. The reliability of the FE results are verified by insitu fatigue test using digital image correlation technique. |
| Keywords |
Elliptical hole, Finite element, Plastic zone, Crack deflection, Digital image correlation |
| Received |
12 April 2025 | Revised |
29 July 2025 | Accepted |
29 July 2025 |
| Link to Fulltext |
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