The interaction of cracks in brittle fracture. Force and energy approaches
โ Scribed by S.A. Nazarov
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 759 KB
- Volume
- 64
- Category
- Article
- ISSN
- 0021-8928
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โฆ Synopsis
The quasistatic development of a system of cracks is investigated by writing the fracture criteria as variational inequalities, which enable the extension of (:he crack to be followed as a function of the time-like loading parameter. The interaction of cracks and their stability or avalanche-like growth are analysed. The similarity and differences between Irwin's and Griffith's criteria both in the usual and the refined formulations are discussed.
๐ SIMILAR VOLUMES
The brittle fracture of solids subject to extreme differential stress is assumed to be a consequence of the sequential fusion of smaller cracks into larger ones. Renormalization methods quantitatively describe the dynamics of the cascade of fusion events that culminates in failure, including the obs
Theoretical expressions of the fracture toughness, driving force and fracture energy are derived for a perfect infinite plate with a solitary self-similar fractal crack of mode I considering the fractal effects of cracks in this work. The specific surface energy per unit fractal measure for concrete
The growth and branching of sharp cracks in ideal single crystals are investigated. Neuber-Novozhilov force and deformation criteria are proposed for the branching of sharp cracks; these criteria describe the brittle, quasibrittle, quasiductile and ductile behaviour of materials on fracture. For int