The interaction of a crack front with a second-phase dispersion
- 1 November 1970
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine
- Vol. 22 (179) , 0983-0992
- https://doi.org/10.1080/14786437008221068
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.Keywords
This publication has 8 references indexed in Scilit:
- Fracture Surface Energy of GlassJournal of the American Ceramic Society, 1969
- Interaction between a crack front and cleavage stepsPhilosophical Magazine, 1968
- Proposed Fracture Theory of a Dispersion‐Strengthened Glass MatrixJournal of the American Ceramic Society, 1966
- The interaction of cleavage cracks with inhomogeneities in sodium chloride crystalsPhilosophical Magazine, 1965
- CERAMIC ABSTRACTSJournal of the American Ceramic Society, 1965
- LXXV. The moving griffith crackJournal of Computers in Education, 1951
- Extension of Griffith's theory of rupture to three dimensionsProceedings of the Physical Society, 1946
- VI. The phenomena of rupture and flow in solidsPhilosophical Transactions of the Royal Society A, 1921