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Fracture behaviour of Al-weldments. Experimental and numerical investigations

: Baur, M.; Rädle, K.; Blauel, J.G.

Schwalbe, K.H.; Berger, C. ; Engineering Materials Advisory Services Ltd. -EMAS-, Cradley Heath; Deutscher Verband für Materialforschung und -prüfung e.V. -DVM-, Berlin:
Structural Integrity - Experiments, Models, Applications. Proceedings of the 10th Biennial European Conference on Fracture
West Midlands: EMAS Publications, 1994
ISBN: 0-947817-73-5
European Conference on Fracture (ECF) <10, 1994, Berlin>
Fraunhofer IWM ()
aluminium; J-integral; strength; toghness; weld-mechanics; weldment

Mechanical-technological and fracture mechanics tests have been conducted on real-weld and on weld-thermalsimulated specimens to characterise the effect of material and mechanical heterogeneity (mismatching) on the weld joint behaviour. For the different mismatch ratios produced in welded AlMgSil and AlMg4,5Mn plate matedais by using different filler materials and. heat treatments a strong positive effect on the toughness was found from the developed soft zones. Problems in testing such inhomogeneous weldments and consequences for the defect assessment are discussed.