Using the finite element code ABAQUS to make numerical predictions, this paper studies the crack shape development and thickness effects on a series of welded plate T-joint fatigue specimens. It was found that redistribution of the residual stress only occurs in a small region near the weld toe, the extent depending greatly on the magnitude of the applied load.
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References
1.
MohauptU. H.BurnsD. J.KalbfleischJ. C.VosikovskyO.BellR.Fatigue crack development, thickness and corrosion effects in welded plate to plate joints. Proceedings of the International Offshore Conference on Steels in marine structures 1987, Delft, The Netherlands, 1987.
2.
YeeR.BurnsD. J.MohauptU. H.BellR.VosikovskyO.Thickness effect and fatigue crack development in welded joints. Proceedings of the Seventh International Conference on Offshore mechanics and arctic engineering, Houston, Texas, 7–12 February 1988, pp. 447–457.
3.
TysonW. R.VosikovskyO.FaucherB.BurnsD. J.Brittle fracture in heavy section welded T-joints: correlation between stress intensity at fracture and small specimen toughness tests. Proceedings of the Seventh International Conference on Offshore mechanics and arctic engineering, Houston, Texas, 7–12 February 1988, pp. 219–224.
4.
HoldenT. M.RootJ. H.HoltR. A.RoyG.Neutron diffraction measurements of the, residual strain state of a tubular T-joint. Proceedings of the Seventh International Conference on Offshore mechanics and arctic engineering, Houston, Texas, 7–12 February 1988, pp. 127–131.
LeungC. K.Study of finite element modelling of multipass welds, PhD thesis, 1986, University of Waterloo, Waterloo, Ontario.
7.
MokD. H. B.A finite element study of residual stresses in a welded T-joint specimen. MASc thesis, 1988, University of Waterloo, Waterloo, Ontario.
8.
DeGarmoE. P.MeriamJ. L.JonassenF.The effect of weld length upon the residual stresses of unrestrained butt welds. Weld. J. Res. Suppl., August 1946, 25, 485s–487s.
9.
NagarajaRao N. R.EstuarF. R.TallL.Residual stresses in welded shapes. Weld. J. Res. Suppl., 1964, 43, 295s–306s.
10.
OdarE.NishinoF.TallL.Residual stresses in welded built-up ‘T-1’ shapes. Welding Research Council Bulletin 121, 1967.
11.
AlpstenG. A.TallL.Residual stresses in heavy welded shapes. Weld. J. Res. Suppl., March 1970, 49, 93s–105s.
12.
RybickiE. F.StonesiferR. B.Computation of residual stresses due to multipass welds in piping systems. Trans. ASME J. Pressure Vessel Technol., May 1979, 101, 149–154.
13.
GoldakJ.ChakravartiA.BibbyM.An advanced finite element model for welding heat sources. Department of Mechanical and Aeronautical Engineering, Carleton University, Ottawa, Canada, January 1983.
14.
MasubuchiK.Analysis of welded structures—residual stresses, distortion, and their consequences, 1980 (Pergamon Press).
15.
UedaY.FukudaK.NakachoK.TakahashiE.SakamotoK.Transient and residual stresses from multipass weld in very thick plates and their reduction from stress relief annealing. Proceedings of the Third International Conference on Pressure vessel technology, Tokyo, Japan, Vol. 2, 1977, pp. 925–933.
16.
PayneJ. G.Porter-GoffR. F. D.Experimental residual stress distributions in welded tubular T-nodes. International Conference on Fatigue and crack growth in offshore structures, London, 7–8 April 1986, pp. 109–116.
17.
GurneyT. R.Fatigue of welded structures, 2nd edition, 1979 (Cambridge University Press).
18.
AllenA. J.HatchingsM. T.RaineyV.Measurement of through-thickness stress in offshore steels using the neutron diffraction technique. Report AERE R 12178, May 1986, Atomic Energy Research Establishment, Harwell Laboratory, UK.
