A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Basic Wave Analysis of Acoustic Emission
Abstract Acoustic emission or stress wave emission is the phenomenon of transient elastic wave generation due to a rapid release of strain energy caused by a structural alteration in a solid material. Generally these structural alterations are a result of either internally or externally applied mechanical or thermal stress. Depending on the source mechanism, acoustic emission signals may occur with frequencies ranging from several hertz up to tens of megahertz. Often the observed acoustic emission signals are classified as one of two types: burst and continuous. As shown in Fig. 1, the burst type emission resembles a damped oscillation, while the continuous type emission appears to consist of an overlapping sequence of individual bursts. The importance of acoustic emission monitoring lies in the fact that proper detection and analysis of acoustic emission signals can permit remote identification of source mechanisms and the associated structural alteration of solid materials. This information in turn can augment understanding of material behavior, can be used as a quality control method during materials processing and fabrication, and as a nondestructive evaluation technique for assessing the structural integrity of materials under service conditions.
Basic Wave Analysis of Acoustic Emission
Abstract Acoustic emission or stress wave emission is the phenomenon of transient elastic wave generation due to a rapid release of strain energy caused by a structural alteration in a solid material. Generally these structural alterations are a result of either internally or externally applied mechanical or thermal stress. Depending on the source mechanism, acoustic emission signals may occur with frequencies ranging from several hertz up to tens of megahertz. Often the observed acoustic emission signals are classified as one of two types: burst and continuous. As shown in Fig. 1, the burst type emission resembles a damped oscillation, while the continuous type emission appears to consist of an overlapping sequence of individual bursts. The importance of acoustic emission monitoring lies in the fact that proper detection and analysis of acoustic emission signals can permit remote identification of source mechanisms and the associated structural alteration of solid materials. This information in turn can augment understanding of material behavior, can be used as a quality control method during materials processing and fabrication, and as a nondestructive evaluation technique for assessing the structural integrity of materials under service conditions.
Basic Wave Analysis of Acoustic Emission
Green, Robert E. Jr. (author)
1980-01-01
22 pages
Article/Chapter (Book)
Electronic Resource
English
Basic principles of acoustic emission tomography
| British Library Conference Proceedings | 2004
Research and Analysis on Rock Acoustic Emission Wave Characteristics
| British Library Conference Proceedings | 2014
Investigation of the basic creep of concrete by acoustic emission
| Springer Verlag | 1994
Investigation of the basic creep of concrete by acoustic emission
| British Library Online Contents | 1994
Wave Theory of Acoustic Emission in Composite Laminates
| British Library Online Contents | 1996