Journal ArticleDOI
Fatigue damage assessment of various welded joints under uniaxial loading based on energy methods
F. Pakandam,A. Varvani-Farahani +1 more
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TLDR
In this paper, the critical plane/energy approach was found to be the most suitable energy-based approach for fatigue damage and life assessment of welded joints by offering sharper W-N curves and less life scatter.About:
This article is published in International Journal of Fatigue.The article was published on 2011-04-01. It has received 14 citations till now. The article focuses on the topics: Vibration fatigue & Stress concentration.read more
Citations
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Fatigue strength of structural components under multi-axial loading in terms of local energy density averaged on a control volume
Filippo Berto,Paolo Lazzarin +1 more
TL;DR: In this paper, an approach based on the strain energy density (SED) averaged over a control volume is first used to summarise uniaxial and multi-axial fatigue strength data of welded joints made of structural steels and aluminium alloys.
Journal ArticleDOI
An experimental analysis of fatigue behavior of AZ31B magnesium alloy welded joint based on infrared thermography
TL;DR: In this paper, the fatigue behavior of AZ31B magnesium alloy welded joint during high cycle fatigue test was investigated by infrared thermography and the theoretical models were formulated to explain the observed temperature evolution.
Journal ArticleDOI
The multiaxial random fatigue criteria based on strain and energy damage parameters on the critical plane for the low-cycle range
TL;DR: In this article, the authors present a criterion for determination of fatigue life in the low-cycle range under multiaxial stress state, which is generalization of the previous criteria to the low cycle range.
Journal ArticleDOI
Fatigue damage prediction in multiaxial loading using a new energy-based parameter
TL;DR: In this article, a new approach for the definition of the critical plane and a new energy-based multiaxial fatigue parameter are proposed in which the normal strain energy and shear strain energy on two orthogonal material planes are used to predict fatigue damage in multi-axial fatigue loading.
Journal ArticleDOI
Experiences and recommendations for numerical analyses of notch stress intensity factor and averaged strain energy density
TL;DR: In this paper, the concept of notch stress intensity factor (N-SIF) was proposed to provide the analytical solution of the stress field in way of sharp notches, only recently it has been considered as the basis for fatigue strength assessment of welded joints.
References
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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.
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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.
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.
Journal ArticleDOI
A unified approach to the evaluation of linear elastic stress fields in the neighborhood of cracks and notches
Paolo Lazzarin,R. Tovo +1 more
TL;DR: In this paper, an analytical solution valid for cracked and notched components is given in general terms, according to Muskhelishvili's method based on complex stress functions, particularly useful for V-shape notches in wide and finite plates under uniform tensile loading.
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).
Related Papers (5)
Notch stress intensity factors and fatigue strength of aluminium and steel welded joints
Paolo Lazzarin,Paolo Livieri +1 more