Abstract
A higher-order asymptotic J-A2C-C solution, which is suitable for studying cylinder structure with a penetrating crack at outside surface, was proposed by investigating the J-A2 two-parameter method. For cylinder structure with different crack sizes at the outside surface, the methods of FEA, HRR theory, the J-A2 theory and the J-A2C-C method were adopted to calculate the opening stress at crack tip, and comparative analysis by using different methods was made in this paper. The influences of different crack sizes and load values on computational accuracy by using the J-A2C-C method were studied. It can be found that the opening stress obtained by the J-A2C-C method can match well with the FEA numerical results, and the J-A2C-C method can be used to study the crack-tip constraint from small-scale yield condition to large-scale yield condition.
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This research was funded by the National Key Research and Development Program of China (grant number 2021YFC 3090403 and 2021YFC3001904), the Scientific and Technological Program of China National Fire and Rescue Administration (grant number 2021XFZD05).
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Wei Shi is an associate research fellow at Shanghai Fire Research Institute of MEM.
Jun-jun Wang is an associate research fellow at Shanghai Fire Research Institute of MEM.
Guang-chen Jiao is a Senior Engineer in Shanghai Hui Ce Information Technology Co., Ltd. His research interest is fracture mechanics.
Chao Liu is an associate research fellow at Shanghai Jiao Tong University.
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Shi, W., Wang, Jj., Liu, C. et al. Crack-tip constraint analysis of cylinder structure with axial penetrating crack at outside surface. J Mech Sci Technol 38, 1949–1955 (2024). https://doi.org/10.1007/s12206-024-0327-2
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DOI: https://doi.org/10.1007/s12206-024-0327-2