Analysis of correlation between stresses and fatigue lives of welded steel specimens based on real three-dimensional weld geometry

• Autorzy: Stasiuk P. , Karolczuk A. , Kuczko W.

Identyfikatory

DOI

10.1515/ama-2016-0002

• Języki publikacji: EN

Abstrakty

EN

Welded joints are areas of increased stresses in construction. The reason for this phenomenon is associated with the nonhomogeneous mechanical, structural and geometrical properties of the weld. In the article the correlations between locally raised stresses due to real geometry and fatigue lives of non-load carrying cruciform joints made from S355J2+N steel are analysed. Stresses were computed using Finite Element Method (FEM) based on real three-dimensional weld geometry obtained by 3D scanning. The specimens were experimentally tested under cyclic push-pull loading with a zero mean value of applied force. The correlation was analysed using Pearson’s correlation coefficient and statistical hypotheses. It was shown that statistically significant correlation exists between maximum values of normal stresses and fatigue lives.

Słowa kluczowe

EN

3d topography; weld joint; non-load carrying cruciform joints; FEM method; correlation analysis

PL

topografia 3D; analiza FEM; analiza korelacji

• Wydawca: Oficyna Wydawnicza Politechniki Białostockiej
• Czasopismo: Acta Mechanica et Automatica
• Rocznik: 2016
• Tom: Vol. 10, no. 1
• Strony: 12--16
• Opis fizyczny: Bibliogr. 15 poz., rys., tab., wykr.

Twórcy

autor

Stasiuk P.

• Formopex Sp. z o.o., ul. Braci Prankel 1, 47-100 Strzelce Opolskie, Poland

autor

Karolczuk A.

• Faculty of Mechanical Engineering, Department of Mechanics and Machine Design, Opole University of Technology, ul. Prószkowska 76, 45-758 Opole, Poland

autor

Kuczko W.

• Chair of Management and Production Engineering, Department of Mechanical Engineering and Management, Poznan University of Technology, Pl. M. Skłodowskiej-Curie 5, 60-965 Poznań, Poland

Bibliografia

• 1. Alam M.M.. Barsoum Z.. Jonsén P.. Kaplan A.F.H.. Häggblad H.A (2010). The influence of surface geometry and topography on the fatigue cracking behaviour of laser hybrid welded eccentric fillet joints. Applied Surface Science. 256. 1936–1945.
• 2. ASTM E739-91(1998). Standard Practice for Statistical Analysis of Linear or Linearized Stress-Life (S-N) and Strain-Life (ε-N) Fatigue Data. ASTM Int West Conshohocken PA 1998;03.01.
• 3. Barsoum Z.. Gustafsson M. (2009). Fatigue of high strength steel joints welded with low temperature transformation consumables. Engineering Failure Analysis. 16. 2186–2194.
• 4. Barsoum Z.. Jonsson B. (2011). Influence of weld quality on the fatigue strength in seam welds. Engineering Failure Analysis. 18. 971–979.
• 5. Blacha Ł.. Karolczuk A.. Bański R.. Stasiuk P. (2013). Application of the weakest link analysis to the area of fatigue design of steel welded joints. Engineering Failure Analysis. 35. 665–677.
• 6. Blacha Ł.. Karolczuk A.. Łagoda T. (2011). Modeling of stress in welded joints under consideration of plastic strains in fatigue life calculations. Materials Testing. 53. 339-343.
• 7. Hou C-Y. (2007). Fatigue analysis of welded joints with the aid of real three-dimensional weld toe geometry. International Journal of Fatigue. 29. 772-785.
• 8. Kaffenberger M.. Malikoutsakis M.. Savaidis G.. Vormwald M. (2012). Fatigue resistance of weld ends. Computational Materials Science. 52. 287-292.
• 9. Kirkhope K.J.. Bell R.. Caron L.. Basu R.I.. Ma K.-T. (1999). Weld detail fatigue life improvement techniques. Part 1: review. Marine Structures. 12. 447-474.
• 10. Lee C-H.. Chang K-H.. Jang G-C.. Lee C-Y. (2009). Effect of weld geometry on the fatigue life of non-load-carrying fillet welded cruciform joints. Engineering Failure Analysis. 16. 849-855.
• 11. MATLAB R2011b (2011). Statistics toolbox. version 7.6.
• 12. Nykänen T.. Marquis G.. Björk T. (2007) Fatigue analysis of nonload-carrying fillet welded cruciform joints. Engineering Fracture Mechanics. 74. 399-415.
• 13. Sonsino C.M.. Radaj D.. Brandt U.. Lehrke H.P. (1999) Fatigue assessment of welded joints in AlMg 4.5Mn aluminium alloy (AA 5083) by local approaches. International Journal of Fatigue. 21. 985–999.
• 14. Ting W.. Dongpo W.. Lixing H.. Yufeng Z. (2009) Discussion on fatigue design of welded joints enhanced by ultrasonic peening treatment (UPT). International Journal of Fatigue. 31. 644–650.
• 15. Williams H.E.. Ottsen H.. Lawrence F.V.. Munse W.H. (1970) The effects of weld geometry on the fatigue behavior of welded connections. Civil Engineering Studies. University of Illinois Urbana. Illinois. Structural Research Series No.366.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.