The extended McEvily model is adopted to predict the fatigue life of deepwater structures under cyclic compression. The three dimensional finite element analysis is performed to estimate the residual stress distribution along the crack surface during the crack propagation under cyclic compression. Then the stress intensity factors and crack growth rate are achieved based on extended McEvily model. The doubled edged specimen under cyclic compressive loading is taken for example to illustrate the analysis procedure, including fatigue crack growth rate prediction by Artificial Neural Networks (ANN), parameters estimation method of the extended McEvily model, calculation of the stress intensity factor and numerical simulation of fatigue crack propagation. By comparing the predicted results and the experimental results, it is found that the numerical simulation of fatigue crack growth under cyclic compression based on extended McEvily model is reasonable and feasible.
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ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering
May 31–June 5, 2015
St. John’s, Newfoundland, Canada
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-5649-9
PROCEEDINGS PAPER
Fatigue Crack Propagation of Deepwater Structures Under Cyclic Compression Based on Extended McEvily Model
Guang-en Luo,
Guang-en Luo
Jiangsu University of Science and Technology, Zhenjiang, China
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Jia-huan Dong
Jia-huan Dong
Jiangsu University of Science and Technology, Zhenjiang, China
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Guang-en Luo
Jiangsu University of Science and Technology, Zhenjiang, China
Jia-huan Dong
Jiangsu University of Science and Technology, Zhenjiang, China
Paper No:
OMAE2015-42027, V003T02A034; 7 pages
Published Online:
October 21, 2015
Citation
Luo, G, & Dong, J. "Fatigue Crack Propagation of Deepwater Structures Under Cyclic Compression Based on Extended McEvily Model." Proceedings of the ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering. Volume 3: Structures, Safety and Reliability. St. John’s, Newfoundland, Canada. May 31–June 5, 2015. V003T02A034. ASME. https://doi.org/10.1115/OMAE2015-42027
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