This paper analyzes the effect of different cutting methods on the fatigue life of high strength steel S690Q. The research covers three cutting methods (oxy-fuel, plasma and laser) and two specimen geometries: plain specimens with rectangular sections and cut edges, and specimens with machined edges and a cut hole in the middle section. All the specimens were conducted to failure by applying fatigue cycles, the stress ratio (R) being 0.1, and the corresponding S-N curves were obtained for each combination of cutting method and specimen geometry. Measurements of roughness and hardness have been performed in order to explain the influence of the cutting method on the fatigue life of this particular steel. Fatigue results have been compared with the predictions provided by current fatigue standards, analyzing the possibility of extrapolating their S-N curves, focused on oxy-fuel cuts, to plasma and laser cuts.
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ASME 2015 Pressure Vessels and Piping Conference
July 19–23, 2015
Boston, Massachusetts, USA
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
978-0-7918-5696-3
PROCEEDINGS PAPER
Effect of Thermal Cutting Methods on the Fatigue Life of High Strength Structural Steel S690Q
Tiberio Garcia,
Tiberio Garcia
University of Cantabria, Santander, Spain
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Sergio Cicero,
Sergio Cicero
University of Cantabria, Santander, Spain
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Jose A. Álvarez,
Jose A. Álvarez
University of Cantabria, Santander, Spain
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Isidro Carrascal,
Isidro Carrascal
University of Cantabria, Santander, Spain
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Antonio Martin-Meizoso
Antonio Martin-Meizoso
Centro de Estudios e Investigaciones Técnicas de Guipúzcoa (CEIT), San Sebastián, Spain
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Tiberio Garcia
University of Cantabria, Santander, Spain
Sergio Cicero
University of Cantabria, Santander, Spain
Jose A. Álvarez
University of Cantabria, Santander, Spain
Isidro Carrascal
University of Cantabria, Santander, Spain
Antonio Martin-Meizoso
Centro de Estudios e Investigaciones Técnicas de Guipúzcoa (CEIT), San Sebastián, Spain
Paper No:
PVP2015-45174, V003T03A037; 8 pages
Published Online:
November 19, 2015
Citation
Garcia, T, Cicero, S, Álvarez, JA, Carrascal, I, & Martin-Meizoso, A. "Effect of Thermal Cutting Methods on the Fatigue Life of High Strength Structural Steel S690Q." Proceedings of the ASME 2015 Pressure Vessels and Piping Conference. Volume 3: Design and Analysis. Boston, Massachusetts, USA. July 19–23, 2015. V003T03A037. ASME. https://doi.org/10.1115/PVP2015-45174
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