Characteristics of acoustic emission in drilling
β Scribed by W.P. Dong; Y.H.Joe Au; A. Mardapittas
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 227 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0301-679X
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This research is devoted to the study of the characteristics of acoustic emission (AE) signals of mortar under uniaxial compression. A total of 40 specimens were tested, in which the water-cement ratio, age, compressive strength and strain were the major parameters of mortar related to the AE signal
## Absfraet -Brittle material fractures at a critical value of stress intensity factor or crack opening displacement (COD) without any prior crack growth. In the ductlk materials, however unstable fracture initiation may be preceded by a period of slow crack growth from the notch tip. Such slow cr