Assessment of mixed-mode fracture toughness testing methods for rock
โ Scribed by I.L. Lim; I.W. Johnston; S.K. Choi
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 861 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0148-9062
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
The centrally cracked Brazilian disc specimen has been used frequently in the past for investigating mixed mode I-II fracture toughness in rock materials. However, a review of the available test results reveals that the conventional fracture criteria like the maximum tangential stress criterion alwa
An experimental technique for studying dynamic fracture toughness under stress wave loading is described in this paper. With a Bar Impact Testing Machine, the three point bending specimen was fractured under impact loading, the loading rate K, being approximately lo6 N/mm3'2. s. An accurate measurem
Crack propagation in rocks is simulated by using a displacement substitution method based on a mixed mode fracture criterion. The main advantage of this model is that it can distinguish between mode I and mode II stress intensity factors simultaneously. A typical finite element program is used to co