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Ultimate Strength Capacity of Welded Joints in High Strength Steels
KTH, Skolan för teknikvetenskap (SCI), Farkost och flyg, Lättkonstruktioner.ORCID-id: 0000-0003-4180-4710
KTH, Skolan för teknikvetenskap (SCI), Farkost och flyg. Cargotec Sweden AB.
2017 (engelsk)Inngår i: 2nd International Conference on Structural Integrity, ICSI 2017 / [ed] Iacoviello, F Moreira, PMGP Tavares, PJS, Elsevier, 2017, Vol. 5, s. 1401-1408Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

High strength steels are nowadays used in a wide range of weight lifting applications, e.g. spreaders and cranes, where there is a demand on lightweight design of these structures with increased structural performance where the welds become more sensitive to failure. This study focuses on investigating the influence of the mismatch in the yield strength of the weld filler material and the welds penetration depth on the ultimate strength capacity and failure modes of butt and fillet welded high strength steels of yield strength in the range of 350 960 MPa. The load carrying capacities of these mentioned joints are evaluated with experiments and compared with the estimations by finite element analysis (FEA), and design rules in Eurocode 3 and American Welding Society Code AWS D1.1. Fully penetrated joint with under-matched filler material is more ductile and the ultimate strength capacity of base plate can be achieved. It is observed that joints with under-matched filler material are more sensitive to penetration ratio. This influence is more pronounced in joints in S960 steel welded with under-matched filler material. It is also found that the design rules in Eurocode3 (valid for design of welded joints in steels of grade up to S700) can be extended to designing of welds in S960 steels using correlation factor of one.

sted, utgiver, år, opplag, sider
Elsevier, 2017. Vol. 5, s. 1401-1408
Serie
Procedia Structural Integrity, ISSN 2452-3216 ; 5
Emneord [en]
High Strength Steels, Welded Joints, Ultimate Strength, Failure
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-221408DOI: 10.1016/j.prostr.2017.07.204ISI: 000419177800188OAI: oai:DiVA.org:kth-221408DiVA, id: diva2:1174953
Konferanse
2nd International Conference on Structural Integrity (ICSI), SEP 04-07, 2017, Funchal, Portugal
Merknad

QC 20180117

Tilgjengelig fra: 2018-01-17 Laget: 2018-01-17 Sist oppdatert: 2018-01-29bibliografisk kontrollert

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Totalt: 117 treff
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