| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7173673 | International Journal of Mechanical Sciences | 2018 | 7 Pages |
Abstract
In order to solve the sudden change of critical loading force before and after the crack initiation at the tip of V-shaped notch and improve the quality of cropping section, it is proposed that the fracture process of the bar is divided into two stages: the crack initiation stage and the crack propagation stage. The research results show that the influence of bottom corner radius s of V-shaped notch on mutation coefficient Fp0.2/Fci is the largest; when s is equal to 0.12â¯mm, there is no force mutation. Based on it, the variable frequency-loading curve is designed in this paper, by which the high-quality cross-section is obtained.153
Keywords
Related Topics
Physical Sciences and Engineering
Engineering
Mechanical Engineering
Authors
Lijun Zhang, Xianfeng Chen, Hanxiang Wang, Zhao Shengdun, Naiming Li, Depei Zhang,