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M. Krácalík¹, W. Daves^1,2 and S. Scheriau³

¹Material Center Leoben Forschung GmbH, Austria
²Institute of Mechanics, Montanuniversität Leoben, Austria
³Voestalpine Schienen GmbH, Leoben, Austria

doi:10.4203/ccp.105.22

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M. Krácalík, W. Daves, S. Scheriau, "Finite Element Investigation of the Load Influence on Shear Crack Direction and Growth in Wheel-Rail Contact", in P. Iványi, B.H.V. Topping, (Editors), "Proceedings of the Ninth International Conference on Engineering Computational Technology", Civil-Comp Press, Stirlingshire, UK, Paper 22, 2014. doi:10.4203/ccp.105.22

Keywords: rail, shear crack, configuration force, finite element, rolling-sliding, cyclic loading.

Summary

The aim of the work, described in this paper, is the investigation of the load influence, described by axle load, tangential load and creep on a surface shear crack. An already existing inclined surface crack is investigated using a two-dimensional finite element model. The crack driving force vector of such a crack is calculated. During a rolling cycle several maxima of the crack driving force are observed and a concept has to be developed, to account for the effect, that each crack tip loading and thus each peak will influence the crack growth rate and crack growth direction. For a quantitative description the model has to be regarded as an elastic-plastic material under large-scale or general yielding conditions. In this paper the configurational force concept is used to determine the crack driving force.

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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: 105 PROCEEDINGS OF THE NINTH INTERNATIONAL CONFERENCE ON ENGINEERING COMPUTATIONAL TECHNOLOGY Edited by: P. Iványi and B.H.V. Topping Paper 22 Finite Element Investigation of the Load Influence on Shear Crack Direction and Growth in Wheel-Rail Contact M. Krácalík¹, W. Daves^1,2 and S. Scheriau³ ¹Material Center Leoben Forschung GmbH, Austria ²Institute of Mechanics, Montanuniversität Leoben, Austria ³Voestalpine Schienen GmbH, Leoben, Austria doi:10.4203/ccp.105.22 purchase the full-text of this paper Full Bibliographic Reference for this paper M. Krácalík, W. Daves, S. Scheriau, "Finite Element Investigation of the Load Influence on Shear Crack Direction and Growth in Wheel-Rail Contact", in P. Iványi, B.H.V. Topping, (Editors), "Proceedings of the Ninth International Conference on Engineering Computational Technology", Civil-Comp Press, Stirlingshire, UK, Paper 22, 2014. doi:10.4203/ccp.105.22 Keywords: rail, shear crack, configuration force, finite element, rolling-sliding, cyclic loading. Summary The aim of the work, described in this paper, is the investigation of the load influence, described by axle load, tangential load and creep on a surface shear crack. An already existing inclined surface crack is investigated using a two-dimensional finite element model. The crack driving force vector of such a crack is calculated. During a rolling cycle several maxima of the crack driving force are observed and a concept has to be developed, to account for the effect, that each crack tip loading and thus each peak will influence the crack growth rate and crack growth direction. For a quantitative description the model has to be regarded as an elastic-plastic material under large-scale or general yielding conditions. In this paper the configurational force concept is used to determine the crack driving force. purchase the full-text of this paper (price £20) 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 £45 +P&P)
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