| About this Abstract |
| Meeting |
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Symposium
|
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Presentation Title |
Mathematical Model and Quantitative Analysis of Residual Stress Hole during Laser Shock Peening |
| Author(s) |
Xiuquan Cheng, Junhao Zhang, Sizhu Cheng, Chang Yan, Qinxiang Xia |
| On-Site Speaker (Planned) |
Xiuquan Cheng |
| Abstract Scope |
Laser shock peening (LSP) can induce residual compressive stress on the component surface, thus improving the fatigue performance of the component. Therefore, LSP has been widely used in aerospace, vehicle engineering and other industrial fields. To research the phenomenon of residual stress hole (RSH) caused by LSP, the “volcano” mathematical model for analyzing the influence factor of RSH was conduct. Quantitative analysis indexes for describing RSH such as relative crater depth, relative crater width, and stress loss ratio were proposed. Based on the reference’s data, a preliminary analysis was performed. The results showed that the main influence factor was the relative crater depth. In order to obtain the best uniform residual stress distribution, overlapping LSP should be used when the relative crater depth is greater than 10%, and the distance between the centers of adjacent spots should be equal to the “crater” radius of the residual stress hole. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |