Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
On the fatigue behaviour and reliability assessment of high strength welded details
Abstract This research focusses on the fatigue behaviour of welded components made of high strength duplex (EN 1.4162) and carbon steel. It starts by investigating the base material alongside welded cruciform joints submitted to cyclic loading through experiments and finite element models. The obtained results are then compared with existing research on high strength (carbon and stainless) steel equivalents. This collated database of >500 reference test results is then used to assess the applicability of the current Eurocode and IIW provisions to predict the fatigue life of higher strength steels and to propose new rules that include the benefit of their higher material strength. Proposals are made to upgrade certain fatigue classes (e.g., transverse stiffeners and butt welds) when high strength steel grades are employed. The reliability of these proposals is then supported by the use Weibull models, commonly used in survival analysis.
Highlights Fatigue behaviour of welded cruciform joints (duplex EN 1.4162 grade) is observed. SN-curves of similar details made of high-strength steels (HSS) were reassessed. Improvement to the fatigue design rules for these grades is proposed. The reliability of these proposals is supported by the use Weibull models.
On the fatigue behaviour and reliability assessment of high strength welded details
Abstract This research focusses on the fatigue behaviour of welded components made of high strength duplex (EN 1.4162) and carbon steel. It starts by investigating the base material alongside welded cruciform joints submitted to cyclic loading through experiments and finite element models. The obtained results are then compared with existing research on high strength (carbon and stainless) steel equivalents. This collated database of >500 reference test results is then used to assess the applicability of the current Eurocode and IIW provisions to predict the fatigue life of higher strength steels and to propose new rules that include the benefit of their higher material strength. Proposals are made to upgrade certain fatigue classes (e.g., transverse stiffeners and butt welds) when high strength steel grades are employed. The reliability of these proposals is then supported by the use Weibull models, commonly used in survival analysis.
Highlights Fatigue behaviour of welded cruciform joints (duplex EN 1.4162 grade) is observed. SN-curves of similar details made of high-strength steels (HSS) were reassessed. Improvement to the fatigue design rules for these grades is proposed. The reliability of these proposals is supported by the use Weibull models.
On the fatigue behaviour and reliability assessment of high strength welded details
Karabulut, Burak (Autor:in) / Ferraz, Gonçalo (Autor:in) / Rossi, Barbara (Autor:in)
04.08.2023
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Fatigue Reliability Analysis for Welded Details
| Springer Verlag | 2018
Fatigue reliability assessment of welded bridge details using probabilistic fracture mechanics
| BASE | 2016
Fatigue Monitoring of Welded Details
| Springer Verlag | 2018
Fatigue strength evaluation of welded structural details in corrugated steel web girders
| Springer Verlag | 2013
Fatigue life prediction of welded ship details
| Elsevier | 2011