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
Fatigue crack propagation behavior of underfill materials in microelectronic packaging
TL;DR: In this article, a fracture mechanics-based technique was used to characterize the fatigue crack propagation behavior of six different underfill materials under two different environmental conditions, i.e., ambient and 85°C/85% relative humidity (RH).
Journal ArticleDOI
Investigation into the effects of fillers in polymer processing
TL;DR: In this article, the effect of fillers on the Young's modulus of polystyrene-based polymer nanocomposites (PNCs) with 8-wt% fillers at 200-°C and 50-rpm was investigated.
Journal ArticleDOI
Fracture-induced photon emission of aluminium oxide and its application to fracture mechanical investigations
TL;DR: In this article, a mechanically-stimulated luminescence is generated during sub-critical crack growth prior to macroscopic bending fracture of sintered alumina, fusion-cast Al2O3, sapphire, and ruby.
Journal ArticleDOI
Fabrication and Fracture Behavior of Novel SiC Ceramics Having Rodlike Grains
Hironori Kodama,Tadahiko Miyoshi +1 more
TL;DR: In this paper, a new type of silicon carbide having rod-like grains was fabricated by hot-pressing or hotpressing followed by hot isostatic pressing using SiC whiskers as the raw powder.
Journal ArticleDOI
Effects of Internal Stresses Due to a Dispersed Phase on the Fracture Toughness of Glass
J. S. Nadeau,J. I. Dickson +1 more
TL;DR: In this paper, the effects of thermal contraction mismatch on the toughening of glass by a dispersed phase were measured in a model system, and three different mechanisms were observed: prestressing of the dispersed phase, deflection of the crack by the stress field of the particle, and crack bowing between particles.
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.