Abstract
This paper summarizes a series of probabilistic linear elastic fracture mechanics (LEFM) calculations conducted to study the effectiveness of weld improvement methods in prolonging the fatigue life of tubular bridge joints. A simple model is proposed which considers the effect of weld improvement, as well as the presence of multiple potential crack initiation sites, in a probabilistic manner. An example is presented to show how the model can be used to evaluate the effectiveness of three different improvement strategies.
Keywords
- Residual Stress
- Stress Intensity Factor
- Stress Intensity Factor
- Compressive Residual Stress
- Linear Elastic Fracture Mechanic
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References
Schumacher, A. Fatigue Behaviour of Welded Circular Hollow Section Joints in Bridges — Thesis N° 2727. EPFL, Lausanne, 2003
Walbridge, S., Nussbaumer, A. and Hirt, M.A. Fatigue Behaviour of Improved Tubular Bridge Joints. Tubular Structures 10, Balkema 2003; 339-345
Bowness, D. and Lee, M.M.K. Weld Toe Magnification Factors for Semi-Elliptical Cracks in T-butt Joints. HSE Report OTO 1999 014, 1999
Newman, J.C. and Raju, I.S. An empirical stress-intensity factor equation for the surface crack. Engineering Fracture Mechanics 1981; 1-2: 185–192
Connolly, M.P. et al. A parametric study of the ratio of bending to membrane stress in tubular Y-and T-joints. International Journal of Fatigue 1990; 1: 3–11
Bremen, U. Amelioration du comportement à la fatigue d’assemblages soudés: étude et modelisation de l’effet de contraintes residuelles — Thesis N° 787. EPFL, Lausanne, 1989
Albrecht, P. and Yamada, K. Rapid Calculation of Stress Intensity Factors. Journal of Structural Engineering 1977; 103(ST2): 377–389
Stacey, A. et al. Incorporation of Residual Stresses into the SINTAP Defect Assessment Procedure. Engineering Fracture Mechanics 2001; 67: 573–611
Melchers, R.E. Structural Reliability Analysis and Prediction — Second Edition. Chichester: John Wiley and Sons Incorporated 1999
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© 2004 Springer-Verlag London
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Walbridge, S., Nussbaumer, A. (2004). Probabilistic Fatigue Analysis of Improved Tubular Bridge Joints Considering Multiple Crack Initiation Sites. In: Spitzer, C., Schmocker, U., Dang, V.N. (eds) Probabilistic Safety Assessment and Management. Springer, London. https://doi.org/10.1007/978-0-85729-410-4_36
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DOI: https://doi.org/10.1007/978-0-85729-410-4_36
Publisher Name: Springer, London
Print ISBN: 978-1-4471-1057-6
Online ISBN: 978-0-85729-410-4
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