Papers by Keyword: AE Technique

Abstract: The CBF (continuous basalt fiber) composite as new and high mechanical property material have been widely applied in actual engineering. The composite material may inevitably occur all kinds of defects during fabrication and using, so in this paper, the AE (acoustic emission) and ESSPI (electronic shearography speckle pattern interferometry) technique are adopt to study the defects or damage of the CBF composite plate. The AE technique is adopted to detect the damage phenomenon of the CBF composit plate specimen tension experiment, and the ESSPI technique is adopt to study the defects of the CBF composite plate which its defects are made by artificial. From the experiment results it can be see that these techniques can detect the position and damage of the CBF composite plate, and these study can provide useful reference for the application of the CBF composite.

Abstract: An acoustic emission (AE) technique has been employed for nondestructive monitoring of the performance of a laboratory scale cementitious wasteform encapsulating Al. Recorded AE activity revealed the possibility for classification and differentiation of detected AE signals with a potential relationship between the corrosion rate of encapsulated Al and the accumulated structural damage within the cement matrix.