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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Book ChapterDOI
Fatigue Mechanisms and Design in Conventional and Additive Manufactured Metallic Materials
TL;DR: In this article , the microstructure scale mechanisms of fatigue crack initiation and propagation of aluminum, steel, and titanium are discussed from both fundamental and heuristic perspectives, with emphasis on ultrasonic fatigue and fatigue crack growth testing, statistical analysis of fatigue data, and computational modeling techniques.
Journal ArticleDOI
High cycle fatigue behavior of titanium microalloyed high-strength beam steels
Journal ArticleDOI
Atomic mechanism of near threshold fatigue crack growth in vacuum
TL;DR: In this paper , the authors show that sustained fatigue crack growth in vacuum requires emitted dislocations to change slip planes prior to their reabsorption into the crack on the opposite side of the loading cycle.
DissertationDOI
Modeling fatigue behavior of additively manufactured ni-based superalloys via crystal plasticity
TL;DR: In this article, the crystal plasticity finite element (CPFE) method is employed to model the microstructure-based material response of an additively manufactured Ni-based superalloy, Inconel 718 (IN718).
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.