Journal ArticleDOI
Notch stress intensity factors and fatigue strength of aluminium and steel welded joints
Paolo Lazzarin,Paolo Livieri +1 more
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TLDR
In this paper, the authors used notch stress intensity factors (N-SIFs) to predict the fatigue behavior of mechanical components weakened by V-shaped re-entrant corners, where the singularity in the stress distribution makes any failure criterion based on elastic peak stress no longer applicable.About:
This article is published in International Journal of Fatigue.The article was published on 2001-03-01. It has received 198 citations till now. The article focuses on the topics: Fatigue limit & Stress concentration.read more
Citations
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Journal ArticleDOI
Fatigue strength of steel and aluminium welded joints based on generalised stress intensity factors and local strain energy values
Paolo Livieri,Paolo Lazzarin +1 more
TL;DR: In this article, the weld toe region is modelled as a sharp, zero radius, V-shaped notch and the intensity of asymptotic stress distributions obeying Williams' solution are quantified by means of the Notch Stress Intensity Factors (NSIFs).
Journal ArticleDOI
Fatigue analysis of welded joints: state of development
TL;DR: In this article, the literature on fatigue analysis of welded joints is reviewed, considering mainly papers and books published during the past 10-15 years, and not the behaviour of spot-welds, which is a very special field.
Book ChapterDOI
Fatigue and Fracture
TL;DR: In this article, the suitability and uncertainty of physical models were considered for crack initiation and growth under cyclic loading as well as unstable crack propagation and tearing in ship and offshore structures and due attention was paid to practical application and statistical description of fracture control methods in design, fabrication and service.
Journal ArticleDOI
A generalized stress intensity factor to be applied to rounded V-shaped notches
Paolo Lazzarin,S. Filippi +1 more
TL;DR: In this article, a generalized form for the notch stress intensity factors, in which not only the opening angle but also the tip radius dimension is explicitly involved, is given. But the authors do not consider the case of sharp V-shaped notches.
Journal ArticleDOI
Some advantages derived from the use of the strain energy density over a control volume in fatigue strength assessments of welded joints
TL;DR: In this article, the notch stress intensity approach to the fatigue assessment of welded joints is modelled as a sharp V-notch, ρ = 0, and local stress distributions in plane configurations are given on the basis of the relevant mode I and mode II notchstress intensity factors (NSIFs).
References
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Journal ArticleDOI
Stress Singularities Resulting From Various Boundary Conditions in Angular Corners of Plates in Extension
TL;DR: In this paper, the authors investigated three boundary conditions on the radial edges: free-free, clamped-clamped, and clamped free, and showed that the free free extensional plate behaves locally at the origin exactly the same as a clampedclamped plate in bending, independent of Poisson's ratio.
Journal ArticleDOI
A finite-volume-energy based approach to predict the static and fatigue behavior of components with sharp V-shaped notches
Paolo Lazzarin,R. Zambardi +1 more
TL;DR: In this article, an energetic approach is proposed to predict the static and fatigue behavior of components weakened by sharp reentrant corners, where the energy in a small volume of material surrounding the notch tip has a finite value and such a value is thought of as the entity that controls the failure.
Book
Fatigue Assessment of Welded Joints by Local Approaches
TL;DR: Local approaches applied to a seam-welded tubular joint are discussed in this paper, where the authors present a structural stress or strain approach for welded joints and a notch strain or crack propagation approach for seam welded lap joints.
Book
Design and Analysis of Fatigue Resistant Welded Structures
TL;DR: In this paper, the authors assess the fatigue strength of seam welded joints in high tensile steels and aluminium alloys, including spot, friction, flash butt, stud and stud joints.
Journal ArticleDOI
A notch intensity factor approach to the stress analysis of welds
Paolo Lazzarin,Roberto Tovo +1 more
TL;DR: In this paper, a stress field approach based on notch stress intensity factors is presented with the aim of describing stress distributions in the neighbourhood of weld toes, since fatigue strength is dependent on such distributions.
Related Papers (5)
A notch intensity factor approach to the stress analysis of welds
Paolo Lazzarin,Roberto Tovo +1 more
Stress Singularities Resulting From Various Boundary Conditions in Angular Corners of Plates in Extension
A finite-volume-energy based approach to predict the static and fatigue behavior of components with sharp V-shaped notches
Paolo Lazzarin,R. Zambardi +1 more