A Study on Fatigue Behavior of SM490A Steel under Low Temperature |
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| Journal | Key Engineering Materials (Volumes 353 - 358) |
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| Volume | Progresses in Fracture and Strength of Materials and Structures |
| Edited by | Yu Zhou, Shan-Tung Tu and Xishan Xie |
| Pages | 142-145 |
| DOI | 10.4028/www.scientific.net/KEM.353-358.142 |
| Citation | Ki Weon Kang et al., 2007, Key Engineering Materials, 353-358, 142 |
| Online since | September, 2007 |
| Authors | Ki Weon Kang, Byeong Choon Goo, J.H. Kim, Heung Seob Kim, Jung Kyu Kim |
| Keywords | Fatigue Behaviour, Low Temperature, Probabilistic Stress-Life (P-S-N), Railway Vehicle, SM490A Steel |
| Abstract | This paper deals with the fatigue behavior and its statistical properties of SM490A steel at various temperatures, which is utilized in the railway vehicle. For these goals, the tensile ad fatigue tests were performed by using a servo-hydraulic fatigue testing machine at three temperatures: +20°C, -10°C and -40°C. The static strength and fatigue limits of SM490A steel were increased with decreasing of test temperature. The probabilistic properties of fatigue behavior are investigated by means of probabilistic stress-life (P-S-N) curve and they are well in conformance with the experimental results regardless of temperature. Also, based on P-S-N curves, the variation of fatigue life is investigated and as the temperature decreases, the variation of fatigue life increases moderately. |
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