Journal ArticleDOI
The interaction of a crack front with a second-phase dispersion
Reads0
Chats0
TLDR
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
More filters
Journal ArticleDOI
Improving the actuation performance of magneto-polymer composites by silane functionalisation of carbonyl-iron particles
TL;DR: In this article, a functionalisation method for carbonyl iron particles using epoxy silane is presented, which increases the stiffness, fracture toughness and induction heating rates compared to composites with unfunctionalised particles.
Journal ArticleDOI
Toughening of unsaturated polyester with rubber particles. Part II: Fracture behavior
M. L. L. Maspoch,A. B. Martinez +1 more
TL;DR: In this article, the fracture behavior of rubber-modified unsaturated polyester was studied using a double-torsion test and Young's modulus was determined in flexural.
Journal ArticleDOI
Strength and Toughness of a Ceramic Reinforced with Metal Wires
TL;DR: Zwissler et al. as mentioned in this paper measured the fracture stress (σF) of unnotched beams and the critical stress intensity factor (K1C) for crack initiation in notched beams; both increased linearly with the volume fraction of fiber.
Journal ArticleDOI
Sintering and strength of silicon nitride-silicon carbide composites
TL;DR: In this article, the sintering, microstructure, fracture toughness and strength of silicon carbide-dispersed silicon nitride composite systems were investigated, and the composite powders could be sintered with aluminium oxide and yttrium oxide additives at normal pressure.
References
More filters
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.