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Fatigue strength of welded joints made of S1100 structural steel
(2019)
Fatigue strength of butt welded joints, non-load carrying T-joints, load carrying X-joints and longitudinal gusset joints made of SSAB’s Strenx® 1100 Plus structural steel is investigated in this study. There is no design ...
Fatigue strength of laser CO2, fiber laser and plasma cut edges made of S690QC and S1100
(2018)
Thermal cutting method are increasingly used in different applications where fatigue life estimation is needed for high strength steels. In this research, the fatigue strength of thermal cutting edges was investigated ...
Fatigue of thermally cut edges on high strenght steels
(2019)
Importance of thermally cut edges fatigue have increased along use of advanced materials and improved welding technology. 4R method for fatigue estimation was used in this thesis for thermally cut edges. Residual stresses ...
TIG-jälkikäsiteltyjen hitsiliitosten jäännösjännitysten karakterisointi
(2021)
Kandidaatintyö tehdään LUT-yliopiston teräsrakenteiden laboratoriolle. Työn tavoitteena on karakterisoida TIG-jälkikäsittelyn vaikutusta hiili-mangaaniteräksille tehtyjen hitsattujen liitosten jäännösjännityksiin ...
HFMI-jälkikäsitellyn hitsiliitoksen väsymistarkastelu Eurokoodi 3 -standardin mukaisesti ja 4R-menetelmällä
(2022)
Tämän kandidaatintyön tavoitteena on vertailla teräsrakenteiden suunnittelustandardi Eurokoodi 3:n ja 4R-menetelmän mukaisesti laskettuja HFMI-jälkikäsitellyn hitsiliitoksen väsymiskestoikäennusteita. Vertailu suoritetaan ...
Overload and variable amplitude load effects on the fatigue strength of welded joints
(2023)
In this thesis, overload and variable amplitude load effects on the fatigue strength of welded joints are studied using both experimental and analytical methods. The main methods of the study are fatigue testing of welded ...
Fatigue assessment of lifting boom
(2021)
In this thesis two different methods were used to implement fatigue analysis of a lifting boom based on strain gauge data collected during fatigue testing. Strain gauge data was used to determine the external forces acting ...