Topic
Acoustic emission
About: Acoustic emission is a research topic. Over the lifetime, 16293 publications have been published within this topic receiving 211456 citations.
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TL;DR: In this article, the thermal cycling behavior of a plasma-sprayed ZrO2-12 wt pct Y2O3 coatings with and without bond coatings of Ni-Cr-Al-Zr was studied.
68 citations
TL;DR: In this paper, a long-term corrosion test was performed on prestressed T-girders measuring 498m (16ft, 4in) and one control, including one control.
Abstract: Long-term corrosion tests were performed on prestressed T-girders measuring 498 m (16 ft, 4 in) The test program was composed of four specimens, including one control The specimens were subjected to wet/dry cycles using 3% NaCl solution to accelerate corrosion Two of the specimens were precracked prior to conditioning to examine the effect of crack presence and/or width The specimens were continuously monitored using acoustic emission (AE) Half-cell potential (HCP) measurements and linear polarization resistance (LPR) were performed daily to serve as a benchmark for corrosion detection Acoustic emission can detect the onset of corrosion comparable in time to conventional electrochemical methods Furthermore, AE intensity analysis has the ability to distinguish between different levels of corrosion The specimens were load-tested to measure the residual capacity, which can give an indication of AE’s ability to detect corrosion damage before it affects the strength of prestressed structures
68 citations
TL;DR: In this paper, the authors presented a theoretical investigation of the acoustic emission to detect the internal leakage rate through a valve and experimental validation of the AE signals generated by internal liquid and gas leakage through valves.
68 citations
TL;DR: In this paper, a simple moment tensor analysis of acoustic emission (AE) provides quantitative information on kinematics of cracks, cracks, crack types and crack volumes are determined by the SiGMA-AE analysis, and the results show close correlation between the calculated crack volumes and the damage parameters.
68 citations
Journal Article•
68 citations