Short-fatigue-crack Growth-rate Modeling Based on the J-integral as the Controlling Parameter
Year: 2024
Type: article
Abstract: The local plasticity around the short fatigue crack tip fails to satisfy the basic assumption of linear-elastic fracture mechanics, which will lead to strong nonlinearity between da/dN and stress field strength indicator. Therefore, the elastic-plastic fracture mechanics parameter J-integral is employed to consider the non-uniform stress field. To this end, the in-situ observation system is set up to monitor and measure the short fatigue growth behavior in real time. The indicator ΔJ is analyzed based on recorded three-dimensional geometric parameters of the crack. The quantitative relationship is established to model the short fatigue crack’s growth rate.
Source: Materiali in tehnologije
Authors: Fang Kun, Pei Chen, Xinyao Zhang, Xiaoqin Zha, Yuhao Gao, Xianfu Luo
Institution: Luoyang Ship Material Research Institute
Language: English
Subfield: Mechanics of Materials
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $323
OpenAlex ID: W4403491712