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The impact of produ...
The impact of production-dependent geometric properties on fatigue-relevant stresses in laser-welded corrugated core steel sandwich panels
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- Nilsson, Peter, 1982 (author)
- Chalmers University of Technology, Sweden,Chalmers tekniska högskola
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- Hedegård, Joakim (author)
- RISE,KIMAB
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- al-Emrani, Mohammad, 1967 (author)
- Chalmers University of Technology, Sweden,Chalmers tekniska högskola
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- Atashipour, Seyed (author)
- Chalmers University of Technology, Sweden
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- Atashipour, Rasoul, 1983 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2019-08-09
- 2019
- English.
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In: Welding in the World. - : Springer Verlag. - 0043-2288 .- 1878-6669. ; 62:6, s. 1801-1818
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Abstract
Subject headings
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- For bridge deck applications, laser-welded corrugated core steel sandwich panels with dual weld lines per crest and trough have been shown to be highly material- and economically efficient. The nature of welding induces a variation in the geometric properties of the joint that connects the core to the faces. The geometric properties of the joint are the weld width, weld misalignment, and plate gap between the core and the faces. This paper aims to investigate the impact of the variation of the production-dependent geometric properties of the joint on the fatigue-relevant stresses. A secondary aim of this paper is to investigate the impact of contact between the core and the faces on the weld region stresses. Within this paper, the production of four sandwich panels is documented and the manufacturing-dependent geometric properties of their joints are quantified. In order to investigate the impact of the natural variation of the parameters, a parametric study based on finite element analyses is executed. The result of the parametric study shows, among several other findings, that misalignment of the weld line in relation to the core direction can lead to considerable increases in stresses, determinant for the fatigue life of the panel.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Teknisk mekanik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Applied Mechanics (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 -- Materialteknik -- Kompositmaterial och -teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Composite Science and Engineering (hsv//eng)
Keyword
- Corrugated core
- Fatigue
- Joint geometry
- Laser weld
- Steel sandwich panel
- Alignment
- Geometry
- Honeycomb structures
- Manufacture
- Sandwich structures
- Welding
- Welds
- Geometric properties
- Laser welds
- Natural variation
- Parametric study
- Sandwich panel
- Steel sandwich panels
- Fatigue of materials
Publication and Content Type
- ref (subject category)
- art (subject category)
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