This paper describes the structure and application of a software system that automates the fatigue initiation and crack propagation analysis based on finite element method (FEM). The system automatically performs necessary procedures to track propagation history of cracks: insertion of a crack and updating of three-dimensional (3D) finite element mesh in accordance with the crack propagation. The system is equipped with a function to automatically perform fatigue analyses using the stress–strain histories at nodes of a 3D FEM model. Some analyses for several examples were carried out for validation. The important example is the surface crack propagation in steel pipes with residual stress.
Automated Fracture Mechanics and Fatigue Analyses Based on Three-Dimensional Finite Elements
Contributed by the Pressure Vessel and Piping Division of ASME for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received October 26, 2014; final manuscript received March 15, 2015; published online June 9, 2015. Assoc. Editor: Haofeng Chen.
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Nakamura, H., Gu, W., Tajima, S., and Hazama, O. (December 1, 2015). "Automated Fracture Mechanics and Fatigue Analyses Based on Three-Dimensional Finite Elements." ASME. J. Pressure Vessel Technol. December 2015; 137(6): 061406. https://doi.org/10.1115/1.4030085
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