Compatibility of Endurance Limit and Fatigue Crack Growth Parameters in Evaluation of Low Alloyed Steel Welded Joint Behaviour

Compatibility of Endurance Limit and Fatigue Crack Growth Parameters in Evaluation of Low Alloyed Steel Welded Joint Behaviour

Analysis of fracture toughness of high-strength low alloyed steel, Nionikral-70, welded joint constituencies, subjected to variable load is given in this paper, using two parameters. Crack initiation resistance is determined by testing of endurance limit and by designing of Wöhler curves. Crack pro...

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Veröffentlicht in:Advanced Materials Research 2015-07, Vol.1111, p.121-126
Hauptverfasser: Živković, Predrag, Radović, Aleksandar, Burzić, Zijah, Čamagić, Ivica, Sedmak, Tamara, Burzić, Meri, Vasić, Nemanja
Format: Artikel
Sprache:eng
Schlagworte:
Crack propagation
Fatigue failure
Fatigue limit
Fracture mechanics
Fracture toughness
Mathematical analysis
Parameters
Welded joints
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Beschreibung
Zusammenfassung:Analysis of fracture toughness of high-strength low alloyed steel, Nionikral-70, welded joint constituencies, subjected to variable load is given in this paper, using two parameters. Crack initiation resistance is determined by testing of endurance limit and by designing of Wöhler curves. Crack propagation resistance is determined by testing of crack growth rate, and accordingly determination of Paris equation parameters. Analysis of fracture toughness is given based on testing results, comparing obtained values for base metal, weld metal and heat affected zone.
ISSN:1022-6680
1662-8985
1662-8985
DOI:10.4028/www.scientific.net/AMR.1111.121