Sources and characteristics of acoustic emissions from mechanically stressed geologic granular media — A review

Michlmayr, Gernot; Cohen, Denis; Or, Dani

doi:10.1016/j.earscirev.2012.02.009

Cited by 152 publications

(111 citation statements)

References 254 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Currently, high performance acquisition systems are available that are able to record and store waveforms from multiple channels at high sample frequencies [64,75]. Despite the large amount of research concerning AE application to measure drought-induced cavitation, the full potential of these state of the art measurement systems has not been used so far.…”

Section: Acoustic Emission (Ae) Application To Measure Drought-inducementioning

confidence: 99%

Acoustic Emissions to Measure Drought-Induced Cavitation in Plants

et al. 2016

View full text Add to dashboard Cite

Acoustic emissions are frequently used in material sciences and engineering applications for structural health monitoring. It is known that plants also emit acoustic emissions, and their application in plant sciences is rapidly increasing, especially to investigate drought-induced plant stress. Vulnerability to drought-induced cavitation is a key trait of plant water relations, and contains valuable information about how plants may cope with drought stress. There is, however, no consensus in literature about how this is best measured. Here, we discuss detection of acoustic emissions as a measure for drought-induced cavitation. Past research and the current state of the art are reviewed. We also discuss how the acoustic emission technique can help solve some of the main issues regarding quantification of the degree of cavitation, and how it can contribute to our knowledge about plant behavior during drought stress. So far, crossbreeding in the field of material sciences proved very successful, and we therefore recommend continuing in this direction in future research.

show abstract

Section: Acoustic Emission (Ae) Application To Measure Drought-inducementioning

confidence: 99%

Acoustic Emissions to Measure Drought-Induced Cavitation in Plants

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Fujiwara et al 1999, Shiotani & Ohtsu 1999, and in Switzerland (e.g. Michlmayr et al 2012 andMichlmayr et al 2013). This body of international research has demonstrated that acoustic emission is generated during soil slope movements and that AE monitoring is capable of detecting pre-failure deformations.…”

Section: Introductionmentioning

confidence: 99%

Quantification of reactivated landslide behaviour using acoustic emission monitoring

et al. 2014

View full text Add to dashboard Cite

“…Acoustic emission monitoring is a powerful non-destructive method to characterize progressive damage and deformation processes of materials that has a wide range of possible applications in engineering, material sciences, and also for the detection of potential natural hazards (Michlmayr et al, 2012). Acoustic emissions (AEs) are transient elastic waves generated by the rapid release of energy within a material (Hardy, 2003).…”

Section: Introductionmentioning

confidence: 99%

A custom acoustic emission monitoring system for harsh environments: application to freezing-induced damage in alpine rock walls

Girard

Beutel

Gruber

et al. 2012

Geosci. Instrum. Method. Data Syst.

View full text Add to dashboard Cite

Abstract. We present a custom acoustic emission (AE) monitoring system designed to perform long-term measurements on high-alpine rock walls. AE monitoring is a common technique for characterizing damage evolution in solid materials. The system is based on a two-channel AE sensor node (AEnode) integrated into a wireless sensor network (WSN) customized for operation in harsh environments. This wireless architecture offers flexibility in the deployment of AE-nodes at any position of the rock wall that needs to be monitored, within a range of a few hundred meters from a core station connected to the internet. The system achieves near real-time data delivery and allows the user to remotely control the AE detection threshold. In order to protect AE sensors and capture acoustic signals from specific depths of the rock wall, a special casing was developed. The monitoring system is completed by two probes that measure rock temperature and liquid water content, both probes being also integrated into the WSN. We report a first deployment of the monitoring system on a rock wall at Jungfraujoch, 3500 m a.s.l., Switzerland. While this first deployment of the monitoring system aims to support fundamental research on processes that damage rock under cold climate, the system could serve a number of other applications, including rock fall hazard surveillance or structural monitoring of concrete structures.

show abstract

Sources and characteristics of acoustic emissions from mechanically stressed geologic granular media — A review

Cited by 152 publications

References 254 publications

Acoustic Emissions to Measure Drought-Induced Cavitation in Plants

Acoustic Emissions to Measure Drought-Induced Cavitation in Plants

Quantification of reactivated landslide behaviour using acoustic emission monitoring

A custom acoustic emission monitoring system for harsh environments: application to freezing-induced damage in alpine rock walls

Contact Info

Product

Resources

About