Residual stress and strain in MIG butt welds in 5083-H321 aluminium : As-welded and fatigue cycled
In: Fatigue Assessment of Welded Connections, Jg. 31 (2009), Heft 1, S. 28-40
academicJournal
- print, 15 ref
Zugriff:
This paper presents single-line residual stress profiles for 8 mm 5083-H321 aluminium plates joined by gas metal arc (MIG) welding. The data were obtained by synchrotron diffraction strain scanning. Weld metal stresses (up to ∼7 mm either side of the centreline) are quite scattered and unreliable because of the large epitaxial grain size in the fusion zone. Peak magnitude of the transverse stresses varies between +50 MPa (19% of parent plate proof strength) at the HAZ boundary to -150 MPa (57% of PP proof strength) at the weld centreline. Equivalent values for longitudinal stresses are +90 MPa (34% of PP proof strength) some 22 mm from the weld centreline to -120 MPa (45% of PP proof strength) at the weld centreline. Plate-to-plate variation in the as-welded transverse and longitudinal residual stress values across the weld toe region is around 40 MPa. The effect on residual stress and strain values of a sequence of applied fatigue loads was also considered and reported.
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Residual stress and strain in MIG butt welds in 5083-H321 aluminium : As-welded and fatigue cycled
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Autor/in / Beteiligte Person: | JAMES, M. N ; HUGHES, D. J ; HATTINGH, D. G ; MILLS, G ; WEBSTER, P. J |
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Zeitschrift: | Fatigue Assessment of Welded Connections, Jg. 31 (2009), Heft 1, S. 28-40 |
Veröffentlichung: | Kidlington: Elsevier, 2009 |
Medientyp: | academicJournal |
Umfang: | print, 15 ref |
ISSN: | 0142-1123 (print) |
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