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Influence of stress relieving by vibration on the fatigue behaviour of welded joints in comparison to post-weld heat treatment

Einfluß des Vibrationsentspannens auf das Schwingfestigkeitsverhalten von reperaturgeschweißten Nähten im Vergleich zum Spannungsarmglühen
 
: Sonsino, C.M.; Müller, F.; Back, J. de; Gresnigt, A.M.

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Fatigue and Fracture of Engineering Materials and Structures 19 (1996), No.6, pp.703-708 : Ill., Lit.
ISSN: 8756-758X
ISSN: 0160-4112
ISSN: 1460-2695
English
Journal Article
Fraunhofer LBF ()
constant amplitude loading; crack; Eigenspannung; Einstufenbeanspruchung; fatigue behaviour; fatigue strength test; heat treatment; measurement; Messung; repair welding; Reparaturschweißung; residual stress; Riß; Schweißnaht; Schweißverbindung; Schwingfestigkeitsverhalten; Schwingfestigkeitsversuch; Spannungsarmglühen; stress relief annealing; vibrational stress relief; Vibrationsentspannen; Wärmebehandlung; weld; welded joint

Abstract
Constant amplitude fatigue tests with welded specimens under fully reversed four-point bending as well as under axial loading have shown that vibration stress relieving does not lead to a fatigue life improvement of welded parts when compared to the as-welded state. Thus, a substitution of thermal stress relieving by a vibration treatment is not successful. This was also proved by residual stress measurements in the welded parts studied in this paper.

: http://publica.fraunhofer.de/documents/PX-18508.html