Journal ArticleDOI
The physics of fatigue crack initiation
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TLDR
In this paper, the authors focus on experimental observations of strain localization and the theory and numerical analysis of both slip irreversibilities and low energy configuration defect structures, which are the early signs of damage during cyclic loading.About:
This article is published in International Journal of Fatigue.The article was published on 2013-12-01. It has received 495 citations till now. The article focuses on the topics: Crack closure & Slip (materials science).read more
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Proceedings ArticleDOI
AE entropy for detection of fatigue crack initiation and growth
TL;DR: This paper proposes a new technique for detection and determination of fatigue crack initiation and growth, which could have a major contribution to the structural diagnosis and prognosis and conceptually discusses a possible connection between the thermodynamic and information entropic approach.
Journal ArticleDOI
Low cycle fatigue behavior of wire arc additive manufactured and solution annealed 308 L stainless steel
TL;DR: In this paper , microstructural characterization, quasi-static tensile tests, and strain controlled low cycle fatigue tests were carried out on a 308 L SS fabricated by WAAM and solution annealing.
Journal ArticleDOI
The effects of grain size and heat treatment on the deformation heterogeneities and fatigue behaviors of GW83K magnesium alloys
Jipeng Pan,Jipeng Pan,Liming Peng,Penghuai Fu,Haiming Zhang,Jiashi Miao,Haiyan Yue,Alan A. Luo +7 more
TL;DR: In this article, the authors investigated the strain-controlled fatigue performance of the cast GW83K (Mg-9.33Gd-2.61Y 0.34Zr) magnesium alloys with different grain sizes (82μm and 163μm) and thermal conditions (T4 and T6).
Journal ArticleDOI
Mechanism of high-temperature oxidation effects in fatigue crack propagation and fracture mode for FGH97 superalloy
TL;DR: The high-temperature fatigue crack growth behaviors in powder metallurgy (P/M) Ni-based superalloy FGH97 for turbine disk application were investigated at different temperatures (650, 700 and 800°C) in air using a combination of a servohydraulic test system, fractographic and microanalytical investigations as mentioned in this paper.
Journal ArticleDOI
Reconstruction methods and analysis of subsurface uncertainty for anisotropic microstructures
TL;DR: In this paper, the surface microstructure was statistically reconstructed via a proposed methodology that directly uses the information given by the surface characterization, and the in-plane maximum shear strain was evaluated.
References
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Journal ArticleDOI
The Phenomena of Rupture and Flow in Solids
TL;DR: In this article, the authors investigated the effect of surface scratches on the mechanical strength of solids, and some general conclusions were reached which appear to have a direct bearing on the problem of rupture, from an engineering standpoint, and also on the larger question of the nature of intermolecular cohesion.
Book
Metal fatigue in engineering
R. I. Stephens,H. O. Fuchs +1 more
TL;DR: In this paper, the authors present methods proven successful in practice, such as safe-life, fail-safe, forecasting of service reliability, monitoring, and inspection; macroscopic and microscopic aspects of fatigue behavior; principles for determining fatigue crack growth and final fracture; scatter of data and statistical methods; environmental factors; and fatigue of joints and compounds.
Journal ArticleDOI
The structure of high-angle grain boundaries
TL;DR: In this paper, a superimposed dislocation network is proposed for the cubic system, which is a natural extension of previous dislocation models and models based on coincidence relationships, and explains many of the observed properties of grain boundaries.
Journal ArticleDOI
Ductile versus brittle behaviour of crystals
James R. Rice,Robb Thomson +1 more
TL;DR: In this article, a necessary criterion for brittle fracture in crystals is established, in terms of the spontaneous emission of dislocations from an atomically sharp cleavage crack, and the stability of a sharp crack against emission of a blunting dislocation for a number of crystals and crystal types in two dimensions and the energy to form a stable loop of dislocation from the crack tip in three dimensions.
Journal ArticleDOI
Dislocation wall and cell structures and long-range internal stresses in deformed metal crystals
TL;DR: In this article, a simple model for single-slip and multiple-slink deformation is proposed, in which the crystal is considered as a composite consisting of hard dislocation walls of high local dislocation density which are separated by soft regions of low local dislocations density.