Analysis of weld root fatigue cracking in load-carrying high-strength aluminum alloy cruciform joints
Source abstract
Abstract
Abstract This paper presents both experimental and analytical investigations into weld root cracking behaviors in load-carrying high-strength aluminum alloy cruciform joints. In test specimen preparations, electric spark machining was used to ensure weld penetration consistency. An analytical weld throat stress model is proposed for determining the maximum opening stress state and its weld throat angle. Its lower-order form expressed in terms of nominal stress is also proven to be adequate for interpreting the test data, which offers simplicity for practical applications. Comparisons between the lower-order weld throat stress and “engineering shear stress” used in some Codes and Standards are also discussed.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Fatigue and fracture mechanics · Advanced Welding Techniques Analysis · Aluminum Alloy Microstructure Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (42)
Show source-provided references
1. How aluminum changed the world: a metallurgical revolution through technological and cultural perspectives10.1016/j.techfore.2019.03.011 ↗
2. Air transport and high-speed rail competition: Environmental implications and mitigation strategies
3. Fatigue crack initiation for Al-Zn-Mg alloy welded joint
4. Fatigue of welded structures
5. Status review on fatigue performance of fillet welds10.1115/1.2827941 ↗
6. Dong P, Hong J, Osage D, Dewees D, Prager M. The Master SN Curve Method an Implementation for Fatigue Evaluation of Welded Components in the ASME B&PV Code, Section VIII, Division 2 and API 579-1/ASME FFS-1, Welding Research Council Bulletin; 2010.
7. Atzori B, Lazzarin P, Meneghetti G. Local, semilocal and nominal approaches to estimate the fatigue strength of welded joints. Eng Against Fract 2009:357–368.10.1007/978-1-4020-9402-6_29 ↗
8. Simplified approach to fatigue strength assessment of fillet-welded attachment ends10.1016/j.ijfatigue.2005.04.008 ↗
9. Finite element methods for structural hot spot stress determination-a comparison of procedures10.1016/j.ijfatigue.2004.04.003 ↗
10. Novel hot spot stress calculations for welded joints using 3D solid finite elements10.1016/j.marstruc.2015.07.004 ↗
11. Numerical implementation for fatigue assessment of butt joint improved by high frequency mechanical impact treatment: a structural hot spot stress approach10.1016/j.ijfatigue.2016.07.008 ↗
12. Comparison of local stress based concepts — Effects of low-and high cycle fatigue and weld quality10.1016/j.engfailanal.2015.07.022 ↗
13. An analytical and experimental study on the thickness effect of fatigue strength in large-scale-welded models10.1007/s40194-014-0118-y ↗
14. Notch stress concepts for the fatigue assessment of welded joints – background and applications10.1016/j.ijfatigue.2010.04.011 ↗
15. A traction stress based shear strength definition for fillet welds10.1177/0309324712456646 ↗
16. Traction structural stress analysis of fatigue behaviors of rib-to-deck joints in orthotropic bridge deck10.1016/j.ijfatigue.2019.03.038 ↗
17. A quantitative weld sizing criterion for fatigue design of load-carrying fillet-welded connections10.1016/j.ijfatigue.2017.01.003 ↗
18. A structural strain method for low-cycle fatigue evaluation of welded components10.1016/j.ijpvp.2014.03.003 ↗
19. A structural strain parameter for a unified treatment of fatigue behaviors of welded components10.1016/j.ijfatigue.2019.03.010 ↗
20. An analytically formulated structural strain method for fatigue evaluation of welded components incorporating nonlinear hardening effects10.1111/ffe.12900 ↗
21. An analytical structural strain method for steel umbilical in low cycle fatigue10.1115/1.4040721 ↗
22. Analysis of fatigue failure mode transition in load-carrying fillet-welded connections10.1016/j.marstruc.2016.01.001 ↗
23. Evaluation of weld root failure using Battelle structural stress method10.1115/1.4007329 ↗
24. Application of neuber’s effective stress method for the evaluation of the fatigue behaviour of magnesium welds10.1016/j.ijfatigue.2016.10.023 ↗
25. Critical distance approach for the fatigue strength assessment of magnesium welded joints in contrast to Neuber's effective stress method10.1016/j.ijfatigue.2018.03.004 ↗
26. Fatigue design of welded joints from the wrought magnesium alloy AZ31 by the local stress concept with the fictitious notch radii of rf= 1.0 and 0.05 mm10.1016/j.ijfatigue.2008.05.017 ↗
27. Fatigue design of aluminium welded joints by the local stress concept with the fictitious notch radius of rf= 1 mm10.1016/j.ijfatigue.2005.10.006 ↗
28. Improving the fatigue strength of A7N01 aluminum alloy by adjusting Si content10.1016/j.msea.2018.10.085 ↗
29. Stress corrosion cracking behavior of 4.19%Zn-1.34%Mg (A7N01S-T5) aluminum alloy10.5006/2043 ↗
30. Fatigue cracking characteristics of fiber Laser-VPTIG hybrid butt welded 7N01P-T4 aluminum alloy10.1016/j.ijfatigue.2017.01.008 ↗
31. Strength analysis of fillet welds under longitudinal and transverse shear conditions10.1016/j.marstruc.2015.06.003 ↗
32. D.N. Veritas, DNV-RP-C206-Fatigue methodology of offshore ships, in, DNV, Norway; 2010.
33. Effect of humidity on porosity, microstructure, and fatigue strength of A7N01S-T5 aluminum alloy welded joints in high-speed trains10.1016/j.matdes.2015.06.177 ↗
34. Dong P, Hong JK, De Jesus AlMP. Analysis of Recent Fatigue Data Using the Structural Stress Procedure in ASME Div 2 Rewrite, Journal of Pressure Vessel Technology 2007;129:355.10.1115/1.2748818 ↗
35. An equivalent stress parameter for multi-axial fatigue evaluation of welded components including non-proportional loading effects10.1016/j.ijfatigue.2017.01.006 ↗
36. A new path-dependent fatigue damage model for non-proportional multi-axial loading10.1016/j.ijfatigue.2016.05.010 ↗
37. Dong P, Hong JX, De Jesus AMP. Analysis of recent fatigue data using the structural stress procedure in ASME Div 2 Rewrite, Pres Ves P 2005:253–261.10.1115/PVP2005-71511 ↗
38. Dong P, Yang X. A master SN curve representation of subsea umbilical tube weld fatigue data, in: ASME 2010 29th international conference on ocean, offshore and Arctic engineering, American Society of Mechanical Engineers; 2010. p. 177–184.10.1115/OMAE2010-20789 ↗
39. Stresses and stress intensities at notches: 'anomalous crack growth' revisited10.1016/S0142-1123(03)00130-0 ↗
40. B. Standard, Guide to fatigue design and assessment of steel products, BS 7608: 2014, The British Standards Institution, London, UK; 2014.
41. A simplified structural strain method for low-cycle fatigue evaluation of girth-welded pipe components.10.1016/j.ijfatigue.2020.105732 ↗
42. Evaluation of magnesium weldment fatigue data using traction and notch stress methods10.1016/j.ijfatigue.2020.105695 ↗