Fatigue crack propagation under biaxial tensile loading - Effect of the phase difference on biaxial loading

Koji Gotoh, Toshio Niwa, Yosuke Anai, Tetsuya Omori, Yoshihisa Tanaka, Koji Murakami

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Fatigue crack propagation under biaxial tensile loading is highlighted in this study. Ships and offshore structures are subjected to many types of loading, e.g. wave induced forces, gravity, and inertia forces. Generally, these loadings have different axial components with different phases. However, the structural integrities of structures and vessels are evaluated according to design codes based on theoretical and experimental investigations under a uniaxial loading condition. Most of these codes are based on the S-N curves approach. An approach that does not use S-N curves has been favored by researchers, with the fracture mechanics approach preferred for evaluating the fatigue life of structures. An advanced fracture mechanics approach was developed based on the Re-tensile Plastic zone Generating (RPG) stress criterion for fatigue crack propagation. In this study, fatigue crack propagation tests under biaxial loading with four different phase conditions are performed and the effect of the phase difference under biaxial loading is evaluated. A numerical simulation method of fatigue crack propagation based on the RPG stress criterion under different biaxial loading phase conditions is presented and compared to measured data.

Original languageEnglish
Title of host publicationASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2013
DOIs
Publication statusPublished - Dec 1 2013
EventASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2013 - Nantes, France
Duration: Jun 9 2013Jun 14 2013

Publication series

NameProceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
Volume3

Other

OtherASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2013
CountryFrance
CityNantes
Period6/9/136/14/13

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All Science Journal Classification (ASJC) codes

  • Ocean Engineering
  • Energy Engineering and Power Technology
  • Mechanical Engineering

Cite this

Gotoh, K., Niwa, T., Anai, Y., Omori, T., Tanaka, Y., & Murakami, K. (2013). Fatigue crack propagation under biaxial tensile loading - Effect of the phase difference on biaxial loading. In ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2013 [V003T03A036] (Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE; Vol. 3). https://doi.org/10.1115/OMAE2013-10980