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M. Akama, F. Ohya, K. Matsubara, "Numerical Simulation of Simultaneous Propagation of Horizontal and Transverse Fissures in Squats", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 251, 2016. doi:10.4203/ccp.110.251

Keywords: squats, horizontal fissure, transverse fissure, boundary node method, ADINA.

Summary

In the study presented in this paper, numerical simulations of the simultaneous propagation of horizontal and transverse fissures in squats have been performed. For horizontal fissure growth, it is based on a boundary element analyses of stress intensity factors (SIFs) for the two-dimensional inclined surface crack under a Hertzian contact patch. By arranging in parallel and connecting the tips of these two-dimensional cracks, SIFs for the three-dimensional semi-elliptical horizontal crack can be obtained approximately. A Paris type crack growth law with an equivalent SIF proposed by Richard is obtained using the data from mode I-II and mode I-III non-proportional mixed mode experiments. Beside, a program has been developed based on a mesh-free boundary node method and the analyses of the SIFs are performed for the three-dimensional transverse fissures. The direction and period of branching from a horizontal crack to a transverse one are predicted according to Hourlier and Pineau's criterion.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 110 PROCEEDINGS OF THE THIRD INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 251 Numerical Simulation of Simultaneous Propagation of Horizontal and Transverse Fissures in Squats M. Akama¹, F. Ohya² and K. Matsubara² ¹Department of Mechanical Engineering for Transportation, Osaka Sangyo University, Osaka, Japan ²Advance Soft Corporation, Japan doi:10.4203/ccp.110.251 purchase the full-text of this paper Full Bibliographic Reference for this paper M. Akama, F. Ohya, K. Matsubara, "Numerical Simulation of Simultaneous Propagation of Horizontal and Transverse Fissures in Squats", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 251, 2016. doi:10.4203/ccp.110.251 Keywords: squats, horizontal fissure, transverse fissure, boundary node method, ADINA. Summary In the study presented in this paper, numerical simulations of the simultaneous propagation of horizontal and transverse fissures in squats have been performed. For horizontal fissure growth, it is based on a boundary element analyses of stress intensity factors (SIFs) for the two-dimensional inclined surface crack under a Hertzian contact patch. By arranging in parallel and connecting the tips of these two-dimensional cracks, SIFs for the three-dimensional semi-elliptical horizontal crack can be obtained approximately. A Paris type crack growth law with an equivalent SIF proposed by Richard is obtained using the data from mode I-II and mode I-III non-proportional mixed mode experiments. Beside, a program has been developed based on a mesh-free boundary node method and the analyses of the SIFs are performed for the three-dimensional transverse fissures. The direction and period of branching from a horizontal crack to a transverse one are predicted according to Hourlier and Pineau's criterion. purchase the full-text of this paper (price £22) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £85 +P&P)
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