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Abstract
In this work, with the aid of the implicit gradient method, the fatigue behaviour of different types of arc-welded joints was analysed. The structural parts, made of steel, were modelled as three-dimensional solids without applying any geometric exemplification, directly calculating the fatigue life numerically. The advantage offered by this approach is that of being able to maintain the unvaried calculation procedure regardless of the type of joint in question. Moreover, adopting the gradient method, there is no obligation to impose particular rules for the creation of the calculation mesh on the finished elements.
Notes
(*) Report presented at the National Welding Days 6 workshop: “Reliability of Structures and Plant Systems” – Genoa, 26–27 May 2011.
Additional information
Notes on contributors
P. Livieri
Paolo Livier graduated in Mechanical Engineering at the University of Padua. He is currently Associate Professor for Machine Construction studies at the Faculty of Engineering of the University of Ferrara. He is interested in notch and elasto-plasticity effect aspects in static and fatigue design of mechanical parts and structural components
R. Tovo
Roberto Tovo, who was awarded a degree in Mechanical Engineering at the University of Padua, is a researcher in Machine Design. He is currently adjunct professor of Mechanical Design and Machine Construction at the Faculty of Engineering of the University of Ferrara. He conducts research activities on subjects relating to the structural and mechanical reliability of materials. In particular, he has carried out various research projects in the field of fatigue resistance of welded joints in metallic materials. He collaborates with the Italian Institute of Welding and is a former director of a university master-level course of studies in Welding Engineering