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Fatigue behaviour study of laser hybrid welded eccentric fillet joints: Part II: State-of-the-art of fracture mechanics and fatigue analysis of welded joints
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
Kungliga tekniska högskolan, KTH.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mechanics of Solid Materials.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mechanics of Solid Materials.
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2009 (English)In: 12th NOLAMP proceeding 2009: Nordic Laser Materials Processing Conference ; 24th - 26th August 2009 in Copenhagen / [ed] Erling Dam Mortensen, Kgs. Lyngby: ATV-SEMAPP , 2009Conference paper (Refereed)
Abstract [en]

Simplified fatigue and fracture mechanics based assessment methods are widely used by the industry to determine the structural integrity significance of postulated cracks, manufacturing flaws, service-induced cracking or suspected degradation of engineering components under normal and abnormal service loads. In many cases, welded joints are the regions most likely to contain original fabrication defects or cracks initiating and growing during service operation. The welded joints are a major component that is often blamed for causing a structure failure or for being the point at which fatigue or fracture problems initiate and propagate. Various mathematical models/techniques for various classes of welded joints are developed by analytically or by simulation software's that can be used in fatigue and fracture assessments. This literature survey compiled useful information on fracture and fatigue analysis of various welded joints. The present review is divided into two major sections- fracture mechanics and fatigue analysis with widely used models. A survey table is also introduced to get the outlook of research trend on fatigue and fracture over last 3 decades. Although tremendous research effort has been implemented on fatigue and fracture analysis of conventional welding, research on relatively new welding technology (laser welding, hybrid laser welding) is still limited and unsatisfactory. In order to give guarantee or make welding standard for new welding technology, further research is required in the field of fatigue and fracture mechanics including FEM and multi-scale modeling.

Place, publisher, year, edition, pages
Kgs. Lyngby: ATV-SEMAPP , 2009.
Keyword [en]
Manufacturing engineering and work sciences - Manufacturing engineering
Keyword [sv]
Produktion och arbetsvetenskap - Produktionsteknik
Research subject
Manufacturing Systems Engineering; Solid Mechanics
URN: urn:nbn:se:ltu:diva-29643Local ID: 32eb5df0-a694-11de-8293-000ea68e967bOAI: diva2:1002867
Nordic Conference on Laser Processing of Materials : 24/08/2009 - 26/08/2009
Godkänd; 2009; Bibliografisk uppgift: CD-ROM; 20090921 (minala)Available from: 2016-09-30 Created: 2016-09-30Bibliographically approved

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