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Author : Anonim
Publisher : ASTM International
Page : 295 pages
File Size : 42,5 Mb
Release : 1975
Category : Electronic
ISBN : 8210379456XXX
Author : Anonim
Publisher : Unknown
Page : 0 pages
File Size : 46,5 Mb
Release : 1975
Category : Electronic
ISBN : OCLC:1414907270
Author : Kanji Ono,Tomoki Shiotani,Martine Wevers,Marvin A. Hamstad
Publisher : MDPI
Page : 298 pages
File Size : 55,6 Mb
Release : 2020-11-23
Category : Technology & Engineering
ISBN : 9783039284740
Acoustic emission (AE) techniques have successfully been used for assuring the structural integrity of large rocket motorcases since 1963, and their uses have expanded to ever larger structures, especially as structural health monitoring (SHM) of large structures has become the most urgent task for engineering communities around the world. The needs for advanced AE monitoring methods are felt keenly by those dealing with aging infrastructures. Many publications have appeared covering various aspects of AE techniques, but documentation of actual applications of AE techniques has been mostly limited to reports of successful results without technical details that allow objective evaluation of the results. There are some exceptions in the literature. In this Special Issue of the Acoustics section of Applied Sciences, we seek contributions covering these exceptions cited here. Here, we seek contributions describing case histories of AE applications to large structures that have achieved the goals of SHM by providing adequate technical information supporting the success stories. Types of structures can include aerospace and geological structures, bridges, buildings, factories, maritime facilities, off-shore structures, etc. Experiences with AE monitoring methods designed and proven for large stru
Author : W. F. Hartman,J. W. McElroy
Publisher : ASTM International
Page : 238 pages
File Size : 45,6 Mb
Release : 1979
Category : Science
ISBN : 0803102712
Author : R.A. Collacott
Publisher : Springer Science & Business Media
Page : 510 pages
File Size : 53,8 Mb
Release : 1985-11-30
Category : Technology & Engineering
ISBN : 0412219204
This book should be of interest to students and practitioners of materials science, production engineering and engineering design.
Author : Stuart Hewerdine
Publisher : IChemE
Page : 146 pages
File Size : 43,6 Mb
Release : 1993
Category : Technology & Engineering
ISBN : 085295316X
In some cases, acoustic emission testing is a convenient way of checking a vessel for invisible structural faults; in other cases the method is inappropriate for various reasons. This book sets out to help in deciding whether acoustic emission testing is the right method for a particular problem.
Author : Kanji Ono,Tomoki Shiotani,Martine Wevers,Marvin A. Hamstad
Publisher : Unknown
Page : 298 pages
File Size : 55,5 Mb
Release : 2020
Category : Electronic
ISBN : 3039284754
Acoustic emission (AE) techniques have successfully been used for assuring the structural integrity of large rocket motorcases since 1963, and their uses have expanded to ever larger structures, especially as structural health monitoring (SHM) of large structures has become the most urgent task for engineering communities around the world. The needs for advanced AE monitoring methods are felt keenly by those dealing with aging infrastructures. Many publications have appeared covering various aspects of AE techniques, but documentation of actual applications of AE techniques has been mostly limited to reports of successful results without technical details that allow objective evaluation of the results. There are some exceptions in the literature. In this Special Issue of the Acoustics section of Applied Sciences, we seek contributions covering these exceptions cited here. Here, we seek contributions describing case histories of AE applications to large structures that have achieved the goals of SHM by providing adequate technical information supporting the success stories. Types of structures can include aerospace and geological structures, bridges, buildings, factories, maritime facilities, off-shore structures, etc. Experiences with AE monitoring methods designed and proven for large stru.
Author : Lefteris Tyler
Publisher : Unknown
Page : 0 pages
File Size : 48,6 Mb
Release : 2016-04
Category : Acoustic emission
ISBN : 1681172062
Acoustic emission is a technique that is being used increasingly in the field of structural integrity assessment using fracture mechanics. The dynamic behaviour of defects is extremely important as a small defect that is growing may well be more significant than a larger stable defect. Acoustic emission is the method used to investigate the behaviour of defects under stress. When a structure is subjected to an external stimulus (change in pressure, load, or temperature), localized sources trigger the release of energy, in the form of stress waves, which propagate to the surface and are recorded by sensors. With the right equipment and setup, motions on the order of picometers can be identified. Sources of AE vary from natural events like earthquakes and rock bursts to the initiation and growth of cracks, slip and dislocation movements, melting, twinning, and phase transformations in metals. In composites, matrix cracking and fibre breakage and debonding contribute to acoustic emissions. AEs have also been measured and recorded in polymers, wood, and concrete, among other materials. This book entitled Acoustic Emission - Research and Applications shows that the AE method is constantly and intensively emerging and broadly applied in: on-line monitoring of civil-engineering structures, fatigue cracks detection and location in pressure vessels and pipelines, damage assessment in fibre-reinforced polymer-matrix composites, monitoring welding applications and corrosion processes, bearing condition diagnostics, partial discharge sources detection and location in power transformers and generators, monitoring the drying process of materials, and in otoacoustic emission analysis.
Author : Christian U. Grosse,Masayasu Ohtsu
Publisher : Springer Science & Business Media
Page : 403 pages
File Size : 41,5 Mb
Release : 2008-07-12
Category : Technology & Engineering
ISBN : 9783540699729
Acoustic Emission (AE) techniques have been studied in civil engineering for a long time. The techniques are recently going to be more and more applied to practical applications and to be standardized in the codes. This is because the increase of aging structures and disastrous damages due to recent earthquakes urgently demand for maintenance and retrofit of civil structures in service for example. It results in the need for the development of advanced and effective inspection techniques. Thus, AE techniques draw a great attention to diagnostic applications and in material testing. The book covers all levels from the description of AE basics for AE beginners (level of a student) to sophisticated AE algorithms and applications to real large-scale structures as well as the observation of the cracking process in laboratory specimen to study fracture processes.
Author : Christian U. Grosse,Masayasu Ohtsu,Dimitrios G. Aggelis,Tomoki Shiotani
Publisher : Springer Nature
Page : 752 pages
File Size : 54,8 Mb
Release : 2021-07-14
Category : Technology & Engineering
ISBN : 9783030679361
This book provides an introduction to Acoustic Emission Testing and its applications to different materials like concrete, steel, ceramics, geotechnical materials, polymers, biological structures and wood. Acoustic Emission Techniques (AET) techniques have been studied in engineering for a long time. The techniques are applied more and more to practical investigations and are more and more standardized in codes. This is because the degradation of structures due to ageing urgently demand for maintenance and rehabilitation of structures in service. It results in the need for the development of advanced and efficient inspection techniques. In mechanical engineering and concerning the monitoring of machines and mechanical components, AE is a widely accepted observing deterioration in the frame of structural health monitoring. The advantages of AE like sensitivity, damage localization potential, non-intrusive nature as well as developments in signal analysis and data transmission allow applications that could not be considered decades ago. As such, AE techniques draw great attention to diagnostic applications and in material testing. This book covers all levels from the description of AE basics for AE beginners (level of a student) to sophisticated AE algorithms and applications to real large-scale structures as well as the observation of the cracking process in laboratory specimen to study fracture processes. This book has proved its worth over the past twelve years. Now in its second edition, it will be a resource that sets the standard and equips readers for the future. All chapters from the 1st edition have been updated and rewritten and eight extra chapters (e.g also regarding AE tomography, AE in plate-like structures and AE for investigations of hardening of fresh concrete) have been added.
Author : T. Kishi,Motoichi Ohtsu,S. Yuyama
Publisher : Elsevier
Page : 243 pages
File Size : 42,9 Mb
Release : 2000-09
Category : Science
ISBN : 9780080438511
The theme of the 15th International Acoustic Emission Symposium (IAES15) was set as 'practicality for life-extension and maintenance of plants and structures'. Special emphasis was placed on the review of acoustic emission (AE) research and applications in the 20th century and its future in the 21st century. The technique for monitoring defects and abnormal vibrations due to machine failures is vitally important for the safety of structures in a modern society. AE, as a passive, rather than an active NDT method, has drawn much attention because of its applicability to on-stream surveillance of structures. One important point is its capability to acquire data very simply but with high sensitivity so that the development of a non-contact sensing technique is particularly important. A quantitative method to evaluate structural integrity and remaining life from the detected AE signals is strongly required. Quantitative analysis, based on inverse procedures, has provided a certain solution, but has not been utilized widely enough in structures due to its complexity. Its applicability is limited partly because the accuracy of solutions depends on noise levels and partly because the phenomenon is usually non-reproducible. AE is expected to be a next-generation technique not only to monitor conditions but also for the repair of damaged structures, combined with an active-adaptive technique using a 'solid state actuator'. 'Smart Materials and Structures' are known in this respect. AE is considered to be a very promising technique, together with such sensing techniques as optical fiber, shape memory alloy and electro-rheological fluid. Thus, AE can play a very important roll in monitoring, evaluating and repairing structures. In this workshop, a limited number of invited papers are presented for technical discussion to review the achievements of AE research and applications in the 20th century. The proceedings are entitled Acoustic Emission - Beyond the Millennium to celebrate the new millennium, and stepping forward to a new era. The authors and topics of these review papers were selected by the editorial board.
Author : Justin K. Burnett
Publisher : Unknown
Page : 0 pages
File Size : 52,9 Mb
Release : 2011
Category : Acoustic emission testing
ISBN : 1612099602
Acoustic Emission (AE) is a naturally occurring phenomenon whereby external stimuli, such as mechanical loading, generate sources of elastic waves. AE occurs when a small surface displacement of a material is produced due to stress waves generated when there is a rapid release of energy in a material, or on its surface. This new book presents current research in the study of the theory and uses of acoustic emissions. Topics discussed include acoustic emission from rocks generated in the course of a variety of experiments; applying the acoustic emission technique to estimate the defect density and strength of adhesively bonded couplings and structural health monitoring of ships and offshore structures using acoustic emission testing. (Imprint: Nova Press)
Author : Alberto Carpinteri,Giuseppe Lacidogna
Publisher : CRC Press
Page : 282 pages
File Size : 46,5 Mb
Release : 2008-07-22
Category : Science
ISBN : 9780203892220
The Acoustic Emission (AE) technique uses ad hoc transducers to detect AE events caused by crack growth in structures under external loading. This technique is similar to the one employed in earthquake control, where seismic waves reach the monitoring stations placed on the surface of the Earth. And although they take place on different scales, the
Author : R. E. Gray
Publisher : ASTM International
Page : 219 pages
File Size : 40,5 Mb
Release : 1981
Category : Electronic
ISBN : 8210379456XXX
Author : Pengfei Liu
Publisher : Elsevier
Page : 366 pages
File Size : 46,8 Mb
Release : 2023-05-20
Category : Science
ISBN : 9780323886475
Acoustic Emission Signal Analysis and Damage Mode Identification of Composite Wind Turbine Blades covers both the underlying theory and various techniques for effective structural monitoring of composite wind turbine blades via acoustic emission signal analysis, helping readers solve critical problems such as noise elimination, defect detection, damage mode identification, and more. Author Pengfei Liu introduces techniques for identifying and analyzing progressive failure under tension, delamination, damage localization, adhesive composite joint failure, and other degradation phenomena, outlining methods such as time-difference, wavelet, machine learning, and more including combined methods. The disadvantages and advantages of using each method are covered as are techniques for different blade-lengths and various blade substructures. Piezoelectric sensors are discussed as is experimental analysis of damage source localization. The book also takes great lengths to let readers know when techniques and concepts discussed can be applied to composite materials and structures beyond just wind turbine blades. Features fundamental acoustic emission theories and techniques for monitoring the structural integrity of wind turbine blades Covers sensor arrangements, noise elimination, defect detection, and dominating damage mode identification using acoustic emission techniques Outlines the wavelet method, the time-difference defect detection method, and damage mode identification techniques using machine learning Discusses how the techniques covered can be extended and adapted for use in other composite structures under complex loads and in different environments