Journal ArticleDOI
The interaction of a crack front with a second-phase dispersion
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In this paper, it was shown that a crack front increases its length by changing its shape when it interacts with two or more inhomogeneities in a brittle material, and an expression for the fracture energy was obtained.Abstract:
Observations are presented showing that a crack front increases its length by changing its shape when it interacts with two or more inhomogeneities in a brittle material. These observations are presented for both cleavage and conchoidal types of fracture. Based on these observations and the concept that a crack front possesses a line energy, an expression for the fracture energy is obtained. This expression shows that the fracture energy should increase as the distance between the dispersed inhomogeneities is decreased. Using the Griffith fracture criterion, this result is discussed for the case of strengthening a brittle material.read more
Citations
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Journal ArticleDOI
An investigation into the crack propagation behaviour of tooth-coloured particulate-filled dental restorative materials
D. M. Davis,N. E. Waters +1 more
TL;DR: In this article, the authors used the double torsion test in an Instron universal testing machine to study the fracture behavior of dental composites and found that a critical stress of approximately three and a half times the yield stress must be obtained at a critical distance ahead of the crack tip.
Journal ArticleDOI
Fatigue and Low Temperature Fracture in Bitumen Mastic
TL;DR: In this article, the authors have retracted a retracted article that has been published in 2003, which they termed as "untruthful" and "misinterpreted" by the author.
Nano-particles In Multi-scale Composites And Ballistic Applications
TL;DR: In this article, the impact performance of composite panels enhanced with the nanoparticle fillers is evaluated through various dynamic and static testing, including unnotched cantilever beam impact, mixed mode fracture toughness, split-Hopkinson bar, and ballistic V50 testing.
Book ChapterDOI
Fracture behavior of hybrid epoxy–silica–rubber nanocomposites
R.A. Pearson,Y.L. Liang +1 more
TL;DR: In this article, the micromechanisms responsible for the increases in toughness in several types of toughened epoxies are discussed as well as those found in hybrid epoxy-silica-rubber nanocomposites.
Book ChapterDOI
Assurance of structural reliability in ceramics
TL;DR: In this article, a review of various approaches within the framework of linear elastic fracture mechanics, especially in terms of the micromechanics of the brittle failure process, is presented.
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.
Journal ArticleDOI
LXXV. The moving griffith crack
TL;DR: In this article, a straight crack moving through an elastic medium is calculated and the stresses depend on the velocity and reduce to Inglis' solution when the velocity is zero, and the results may be applied to the spicular fracture of glass.
Journal ArticleDOI
Fracture Surface Energy of Glass
TL;DR: In this article, the double-cantilever cleavage technique was used to measure the fracture surface energy of six glasses and the results ranged from 3.5 to 5.3 J/m2 depending on the chemical composition of the glass and the temperature of the test.