In this paper the low cycle fatigue behaviour of steel elbows under strong cyclic loading conditions (in-plane and out-of-plane) is examined. The investigation is conducted through advanced finite element analysis tools, supported by real-scale test data for in-plane bending. The numerical results are successfully compared with the experimental measurements. In addition, a parametric study is conducted, which is aimed at investigating the effects of the diameter-to-thickness ratio on the low-cycle fatigue of elbows, focusing on the stress and strain variations. Strain gauge measurements are compared with finite element models. Upon calculation of local strain variation at the critical location, the number of cycles to fracture can be estimated.
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ASME 2013 Pressure Vessels and Piping Conference
July 14–18, 2013
Paris, France
Conference Sponsors:
- Pressure Vessels and Piping Division
- Nondestructive Evaluation Engineering Division
ISBN:
978-0-7918-5574-4
PROCEEDINGS PAPER
Low Cycle Fatigue Tests and Simulations on Steel Elbows
Patricia Pappa,
Patricia Pappa
University of Thessaly, Volos, Greece
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George E. Varelis,
George E. Varelis
University of Thessaly, Volos, Greece
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Spyros A. Karamanos,
Spyros A. Karamanos
University of Thessaly, Volos, Greece
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Arnold M. Gresnigt
Arnold M. Gresnigt
Delft University of Technology, Berkel en Rodenrijs, Netherlands
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Patricia Pappa
University of Thessaly, Volos, Greece
George E. Varelis
University of Thessaly, Volos, Greece
Spyros A. Karamanos
University of Thessaly, Volos, Greece
Arnold M. Gresnigt
Delft University of Technology, Berkel en Rodenrijs, Netherlands
Paper No:
PVP2013-97903, V008T08A021; 10 pages
Published Online:
January 17, 2014
Citation
Pappa, P, Varelis, GE, Karamanos, SA, & Gresnigt, AM. "Low Cycle Fatigue Tests and Simulations on Steel Elbows." Proceedings of the ASME 2013 Pressure Vessels and Piping Conference. Volume 8: Seismic Engineering. Paris, France. July 14–18, 2013. V008T08A021. ASME. https://doi.org/10.1115/PVP2013-97903
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