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L.G.S. Albuquerque¹, I.K.P. Barile¹, D.S. Matos², E.S. Costa³, P. C. Machado³ and E.M. Braga³

¹Industrial Engineering Postgraduate Program, Federal University of Para, Belem, Brazil
²Mechanical Engineering Postgraduate Program, Federal University of Para, Belem, Brazil
³Laboratory of Characterization of Metallic Material, Federal University of Para, Belem, Brazil

doi:10.4203/ccc.1.10.7

L.G.S. Albuquerque, I.K.P. Barile, D.S. Matos, E.S. Costa, P. C. Machado, E.M. Braga, "Railway Rail Residual Stress Evaluation by Acoustic Birefringence Technique", in J. Pombo, (Editor), "Proceedings of the Fifth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 1, Paper 10.7, 2022, doi:10.4203/ccc.1.10.7

Keywords: nondestructive evaluation, birefringence, residual stress, heavy-haul rail, ultrasonic, acoustoelastic effect.

Abstract

Flash butt welding and aluminothermic are the most of the worldwide heavy haul railway steel coupling. Both produces microstructural and residual stress variations that can increase the weld failure chance when the rail chance is under service conditions. Regarding the analysis of residual stresses, many works available in the literature are about superficial or sub-superficial stresses. Nonetheless, this work sought to do an experimental study of residual stresses analysis in rails, by using a non-destructive technique based on the acoustoelastic and birefringence effect of the material. The measured residual stress is like works using others techniques, about 150 MPa tensile stress. Was found out that there is not any detectable influence in the residual stress by the surface cooling or by the welding.

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Front Page Browse CCC CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Conferences ISSN 2753-3239 CCC: 1 PROCEEDINGS OF THE FIFTH INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 10.7 Railway Rail Residual Stress Evaluation by Acoustic Birefringence Technique L.G.S. Albuquerque¹, I.K.P. Barile¹, D.S. Matos², E.S. Costa³, P. C. Machado³ and E.M. Braga³ ¹Industrial Engineering Postgraduate Program, Federal University of Para, Belem, Brazil ²Mechanical Engineering Postgraduate Program, Federal University of Para, Belem, Brazil ³Laboratory of Characterization of Metallic Material, Federal University of Para, Belem, Brazil doi:10.4203/ccc.1.10.7 Full Bibliographic Reference for this paper L.G.S. Albuquerque, I.K.P. Barile, D.S. Matos, E.S. Costa, P. C. Machado, E.M. Braga, "Railway Rail Residual Stress Evaluation by Acoustic Birefringence Technique", in J. Pombo, (Editor), "Proceedings of the Fifth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 1, Paper 10.7, 2022, doi:10.4203/ccc.1.10.7 Keywords: nondestructive evaluation, birefringence, residual stress, heavy-haul rail, ultrasonic, acoustoelastic effect. Abstract Flash butt welding and aluminothermic are the most of the worldwide heavy haul railway steel coupling. Both produces microstructural and residual stress variations that can increase the weld failure chance when the rail chance is under service conditions. Regarding the analysis of residual stresses, many works available in the literature are about superficial or sub-superficial stresses. Nonetheless, this work sought to do an experimental study of residual stresses analysis in rails, by using a non-destructive technique based on the acoustoelastic and birefringence effect of the material. The measured residual stress is like works using others techniques, about 150 MPa tensile stress. Was found out that there is not any detectable influence in the residual stress by the surface cooling or by the welding. download the full-text of this paper (PDF, 8 pages, 498 Kb) go to the previous paper go to the next paper return to the table of contents return to the volume description
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