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Influence of defect...
Influence of defects on fatigue crack propagation in laser hybrid welded eccentric fillet joint
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- Alam, Md. Minhaj (författare)
- Luleå tekniska universitet,Produkt- och produktionsutveckling
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- Barsoum, Zuheir (författare)
- KTH,Lättkonstruktioner,Royal Institute of Technology, Department of Aeronautical and Vehicle Engineering, Stockholm
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- Jonsén, Pär (författare)
- Luleå tekniska universitet,Material- och solidmekanik
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- Kaplan, Alexander (författare)
- Luleå tekniska universitet,Produkt- och produktionsutveckling
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- Häggblad, Hans-Åke (författare)
- Luleå tekniska universitet,Material- och solidmekanik
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(creator_code:org_t)
- Elsevier BV, 2011
- 2011
- Engelska.
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Ingår i: Engineering Fracture Mechanics. - : Elsevier BV. - 0013-7944 .- 1873-7315. ; 78:10, s. 2246-2258
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Fatigue cracking of laser hybrid welded eccentric fillet joints has been studied for stainless steel. Two-dimensional linear elastic fracture mechanics analysis was carried out for this joint geometry for four point bending load. The numerical simulations explain for the experimental observations why the crack propagates from the lower weld toe and why the crack gradually bends towards the root. Lack of fusion turned out to be uncritical for the initiation of cracks due to its compressive stress conditions. The linear elastic fracture mechanics analysis has demonstrated in good qualitative agreement with fatigue test results that lack of fusion slightly (<10%) reduces the fatigue life by accelerating the crack propagation. For the geometrical conditions studied here improved understanding of the crack propagation was obtained and in turn illustrated. The elaborated design curves turned out to be above the standard recommendations.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Farkostteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Vehicle Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Bearbetnings-, yt- och fogningsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Manufacturing, Surface and Joining Technology (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Teknisk mekanik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Applied Mechanics (hsv//eng)
Nyckelord
- Crack
- Fatigue; Weld
- Linear elastic fracture mechanics
- Lack of fusion
- Vehicle engineering
- Farkostteknik
- Manufacturing Systems Engineering
- Hållfasthetslära
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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