journal article·2000-08

Fatigue life prediction in AlMgSi1 lap joint weldments

J.A.M Pinho da Cruz, J.D.M Costa, L.F.P Borrego, J.A.M Ferreira

International Journal of Fatigue· Volume 22· Issue 7
Publisher page

Abstract

The fatigue behaviour of an AlMgSi1 alloy lap welded joint and the improvement in fatigue strength due to post-weld heat treatment were investigated. Two series of fatigue tests were performed: one in as-welded specimens and another in heat-treated specimens. The prediction of crack initiation life under a plane strain condition was made based on the local strain approach using Morrow's modified equation. The local inelastic stresses and strains at the weld toe were calculated for the heat-treated specimens using three methods: Neuber, Glinka and finite element analysis. The accuracy of the different methods were evaluated and discussed.
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Research context

OpenAlex topics: Fatigue and fracture mechanics · Advanced Welding Techniques Analysis · Non-Destructive Testing Techniques

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (37)

Show source-provided references
1. Cyclic strain and fatigue strength at the toes of heavy welded joint
2. Constant amplitude and variable load history fatigue test results and predictions for cruciform and lap welds10.1016/0167-8442(84)90018-1 ↗
3. Fatigue analysis of manufacturing defects in weldments10.1016/0142-1123(86)90053-8 ↗
4. A probabilistic model for initiation and propagation of surface cracks in welded joints10.1111/j.1460-2695.1995.tb00907.x ↗
5. Effects of surface treatments on the fatigue of notched bend specimens10.1111/j.1460-2695.1996.tb00936.x ↗
6. Fatigue crack initiation in notched specimens of 17Mn4 steel10.1016/0142-1123(93)90263-P ↗
7. Radaj · 1998
8. Prediction of service fatigue strength of a welded tubular joint on the basis of the notch strain approach10.1016/S0142-1123(98)00012-7 ↗
9. Review of fatigue strength assessment of nonwelded and welded structures based on local parameters10.1016/0142-1123(95)00117-4 ↗
10. A fatigue design method for weldments based on crack initiation
11. Fatigue crack initiation life prediction for welded joints by low cycle fatigue approach10.1111/j.1460-2695.1990.tb00630.x ↗
12. Morrow J. In: Graham JA, editor. Fatigue design handbook. Warrendale, PA: SAE, 1968, pp. 21-30.
13. Cyclic plastic strain energy and fatigue of metals. Internal friction, damping and cyclic plasticity
14. Dowling NE. Mechanical behavior of materials. Engineering methods for deformation, fracture and fatigue. Upper Saddle River, NJ: Prentice-Hall International Editions, 1993, pp. 525-669.
15. Theory of stress concentration for shear strained prismatic bodies with arbitrary non-linear stress-strain law10.1115/1.3641780 ↗
16. Generalised application of Neuber's rule10.1520/JTE11613J ↗
17. Neuber's rule applied to fatigue of notched specimens
18. Energy density approach to calculation of inelastic strain-stress near notches and cracks10.1016/0013-7944(85)90148-1 ↗
19. A method of elastic-plastic stress and strain calculation at a notch root10.1016/0025-5416(81)90089-6 ↗
20. Biaxial stress fatigue life prediction by the local strain method
21. Factors influencing weldment fatigue10.31399/asm.hb.v19.a0002367 ↗
22. Maddox SJ. Fatigue design of welded aluminium structures. 2nd Int. Conf. on Aluminium Weldments, Munich, Germany, 1982.
23. ASTM E 606, Standard practice for strain-controlled fatigue testing. Annual Book of ASTM Standards, 1993, USA, 03.01.
24. Farahmand B, Bockrath G, Glassco J. Fatigue and fracture mechanics of high risk parts. New York, NY: Chapman and Hall, International Thomson Publishing. 1997, pp. 82-86.10.1007/978-1-4615-6009-8 ↗
25. Internal (residual) stresses and hardening of brass
26. Cosmos/M—Finite Element Analysis System, version 2. Structural Research & Analysis Corp. Los Angeles, CA, 1997.
27. Bathe KJ. Finite element procedures. Upper Saddle River, NJ: Prentice–Hall International Editions, 1996, pp. 469-478.
28. Influence of post weld treatments on the fatigue behaviour of Al-alloy welded joints10.1016/S0142-1123(98)00045-0 ↗
29. BS 8118, The structural use of aluminium, Part 1: Code of practice for design. British Standards Institution, 1991.
30. Maddox SJ. Fatigue design optimisation in welded joints. Proc. of NATO Advanced Study Institute on Advances in Fatigue Science and Technology, Alvor, Portugal, 1988. NATO ASI Series, Series E: Applied Science, Vol. 159. Kluwer Academic Publishers, 1989, pp. 551-568.10.1007/978-94-009-2277-8_25 ↗
31. Fatigue strength of aluminium alloy welds10.31399/asm.hb.v19.a0002408 ↗
32. Fatigue and fracture control of weldments10.31399/asm.hb.v19.a0002384 ↗
33. Fatigue in welded constructions. Life assessment of dynamically loaded materials and structures
34. Casting defects and the fatigue behaviour of an aluminium casting alloy10.1111/j.1460-2695.1990.tb00594.x ↗
35. Fatigue performance of 6261-T6 aluminium alloy—constant and variable amplitude loading of parent plate and welded specimens10.1016/S0142-1123(97)00042-X ↗
36. Constant and variable amplitude loading of 6261 aluminium alloy I-beams with welded cover plates—Influence of weld quality and stress relief10.1016/S0142-1123(97)00062-5 ↗
37. Elastic-plastic behaviour and uniaxial low cycle fatigue life of notched specimens10.1111/j.1460-2695.1995.tb00158.x ↗