Download or read book Acoustic Emission written by Wojciech Sikorski and published by BoD – Books on Demand. This book was released on 2013-03-06 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: Acoustic emission (AE) is a phenomenon in which elastic or stress waves are emitted from rapid, localized change of strain energy in material. The practical application of the AE first emerged in the 1950's, but only in the last 20 years the science, technology and applications of AE have progressed significantly. Currently AE has become one of the most important non-destructive testing techniques. This interdisciplinary book consists of nine chapters, which is a proof of the fact that the AE method is continuously and intensively developing and widely applied in: on-line monitoring of civil-engineering structures (e.g. highway bridges, skyscrapers, dams etc.), 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, quality evaluation of fruits and vegetables and in otoacoustic emission analysis.

Download or read book Rail Crack Monitoring Using Acoustic Emission Technique written by Dan Li and published by Springer. This book was released on 2018-06-23 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis provides an innovative strategy for rail crack monitoring using the acoustic emission (AE) technique. The field study presented is a significant improvement on laboratory studies in the literature in terms of complex rail profile and crack conditions as well as high operational noise. AE waves induced by crack propagation, crack closure, wheel-rail impact and operational noise were obtained through a series of laboratory and field tests, and analyzed by wavelet transform (WT) and synchrosqueezed wavelet transform (SWT). A wavelet power-based index and the enhanced SWT scalogram were sequentially proposed to classify AE waves induced by different mechanisms according to their energy distributions in the time–frequency domain. A novel crack sizing method taking advantage of crack closure-induced AE waves was developed based on fatigue tests in the laboratory. The propagation characteristics of AE waves in the rail were investigated, and Tsallis synchrosqueezed wavelet entropy (TSWE) with time was finally brought forward to detect and locate rail cracks in the field. The proposed strategy for detection, location and sizing of rail cracks helps to ensure the safe and smooth operation of the railway system. This thesis is of interest to graduate students, researchers and practitioners in the area of structural health monitoring.

Download or read book Transactions of the JSNDI written by H. Kato and published by CRC Press. This book was released on 1991 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rock Dynamics From Research to Engineering written by Haibo Li and published by CRC Press. This book was released on 2016-04-19 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rock Dynamics: From Research to Engineering is a collection of the scientic and technical papers presented at the Second International Conference on Rock Dynamics and Applications (RocDyn-2, Suzhou, China, 18-19 May 2016). The book has four sections. The first section contains 8 keynote papers, covering a wide range of dynamic issues related to roc

Download or read book Advances In Rock Mechanics written by Yunmei Lin and published by World Scientific. This book was released on 1998-10-07 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Rock Mechanics is a publication presenting the state of the art in the field of rock mechanics. This book includes 29 contributions which present ongoing or recently completed research in various aspects of rock mechanics, as well as examples of current practice with advanced technologies or methods.On the whole, this book offers an interesting and comprehensive understanding of worldwide developments in rock mechanics in recent years.

Download or read book Numerical Modeling in Micromechanics via Particle Methods 2004 written by Y. Shimizu and published by CRC Press. This book was released on 2004-09-15 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: The variety of applications of PFC has continued to increase in the ten years since the first release of these programs. This volume contains a collection of fifty-two papers selected for presentation at the 2nd PFC Symposium, held 27-29 October 2004, in Kyoto, Japan. These contributions cover a wide range of engineering applications and theoretical developments using PFC, and discrete methods in general. Topics include applications in civil engineering, slope and wall stability, rock fracture, shear flows, geology and industrial engineering. New developments are also described for contact bond models, fluid coupling and model calibration. This proceedings volume illustrates the great variety of PFC applications in different engineering fields, and includes case-studies and general applications as well as research presentations.

Download or read book Advances in Cryogenic Engineering written by R. W. Fast and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 1022 pages. Available in PDF, EPUB and Kindle. Book excerpt: Colorado Springs, Colorado, spectacularly located at the foot of Pike's Peak, was the site of the joint 1983 Cryogenic Engineer ing Conference - International Cryogenic Materials Conference. Over 300 papers were presented at the two conferences on a variety of cryogenic science and engineering topics. Volume 29 of Advances in Cryogenic Engineering contains 116 of the papers presented at the 1983 Cryogenic Engineering Confer ence. Each paper was comprehensively peer reviewed to maintain the international reputation of the series as the premier archival medium in the field of cryotechnology. I would like to thank both authors and reviewers for their assistance in the preparation of this volume. R. W. Fast, Editor xvii DEDICATION The cryogenic engineering community was saddened to learn of the death of A. Clark Leonard of the Royal Military College of Canada, Kingston, Ontario, on November 24, 1983. Professor Leonard was born in Prince Albert, Saskatchewan, Canada, in February, 1922. Following service in the RCAF during World War II he received his B.M.E. degree at the University of Saskatchewan. While serving with the Canadian forces in Korea, he was awarded membership in the Order of the British Empire. He received his M.S. and Ph.D. degrees in Mechanical Engineering at the University of Michigan.

Download or read book Structural Integrity and Fracture written by A.V. Dyskin and published by CRC Press. This book was released on 2002-01-01 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: Topics covered in this title include: the fracturing and damage of composite materials; ceramics; metals; and concretes and rocks at different scales in both monotonic and cyclic loading.

Download or read book Engineering Disturbed Rock Mass Structural Mechanics Stress Disturbance and Freeze Thaw on Rock Structure Deterioration written by Yu Wang and published by Scientific Research Publishing, Inc. USA. This book was released on 2021-03-29 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is intended as a reference book for advanced graduate students and research engineers in rock mechanics related to mining, civil engineering, etc. Environmental and human-induced loading acting on manmade works is disturbed in essence. During construction and operation of major engineering projects, e.g., civil engineering, mining engineering, hydraulic engineering, bridge engineering and petroleum engineering, the structures built in or on rock mass not only bear the complex in situ conditions, e.g., stress, seepage, faulting, thermal and chemical coupling, but also often encounter a variety of stress disturbances during engineering construction and operation periods, the stress disturbance acted on rock mass structures can be low-medium strain rate, and also high strain rate. Along with the constructions on rock mass, a lot of disasters, e.g., tunnel rockburst, induced seismicity and sand liquefaction, are cyclic and dynamic processes.

Download or read book Structural Engineering and Industrial Architecture written by Saeed Ghaffarpour Jahromi and published by CRC Press. This book was released on 2023-11-30 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt: Structural Engineering and Industrial Architecture collects the contributions presented at the 6th International Conference on Structural Engineering and Industrial Architecture (ICSEIA 2023, Changsha, China, 24-26 February 2023). The book gathers cutting-edge research and achievements on a wide range of topics, including: - Civil Engineering - Engineering Structure - Environmental Protection Materials - Architectural Environment - Seismic Engineering The book is aimed at academics and engineering working or interested in the above-mentioned areas.

Download or read book Transit Development in Rock Mechanics written by Meifeng Cai and published by CRC Press. This book was released on 2014-10-20 with total page 823 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transit Development in Rock Mechanics Recognition, Thinking and Innovation contains 150 papers presented at the 3rd ISRM International Young Scholars Symposium on Rock Mechanics (8-10 November 2014, Xi an, China). The volume focusses on the transitional development in rock mechanics research from surface to underground mining and from shallow to a

Download or read book Acoustic Emission Testing written by Christian U. Grosse and published by Springer Nature. This book was released on 2021-07-14 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Review of Progress in Quantitative Nondestructive Evaluation written by Donald O. Thompson and published by Springer Science & Business Media. This book was released on 1997 with total page 2304 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Acoustic Electromagnetic Neutron Emissions from Fracture and Earthquakes written by Alberto Carpinteri and published by Springer. This book was released on 2015-11-30 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the relevant consequences of recently discovered and interdisciplinary phenomena, triggered by local mechanical instabilities. In particular, it looks at emissions from nano-scale mechanical instabilities such as fracture, turbulence, buckling and cavitation, focussing on vibrations at the TeraHertz frequency and Piezonuclear reactions. Future applications for this work could include earthquake precursors, climate change, energy production and cellular biology. A series of fracture experiments on natural rocks demonstrates that the TeraHertz vibrations are able to induce fission reactions on medium weight elements accompanied by neutron emissions. The same phenomenon appears to have occurred in several different situations, particularly in the chemical evolution of the Earth and Solar System, through seismicity (rocky planets) and storms (gaseous planets). As the authors explore, these phenomena can also explain puzzles related to the history of our planet, like the ocean formation or the primordial carbon pollution, as well as scientific mysteries, like the so-called “cold nuclear fusion” or the correct radio-carbon dating of organic materials, such as the Turin Shroud. In biology, Piezonuclear reactions could explain the mechanism that governs the so-called "sodium-potassium pump" and more in general, the metabolic processes. Scientists engaged in seismology, geophysics, geochemistry, climatology, planetology, condensed matter physics and b iology, as well as those involved in theoretical and applied mechanics, will all appreciate the innovative work presented here in a holistic way.

Download or read book Advances in Materials Characterization written by David R. Rossington and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt: The characterization of materials and phenomena has historically been the principal limitation to the development in each area of science. Once what we are observing is well defined, a theoretical analysis rapidly follows. Modern theories of chemical bonding did not evolve until the methods of analytical chemistry had progressed to a point where the bulk stoichiometry of chemical compounds was firmly established. The great progress made during this century in understanding chemistry has followed directly from the development of an analytical chemistry based on the Dalton assumption of multiple proportions. It has only become apparent in recent years that the extension of our understanding of materials hinges on their non-stoichiometric nature. The world of non-Daltonian chemistry is very poorly understood at present because of our lack of ability to precisely characterize it. The emergence of materials science has only just occurred with our recognition of effects, which have been thought previously to be minor variations from ideality, as the principal phenomena controlling properties. The next step in the historical evolution of materials science must be the development of tools to characterize the often subtle phenomena which determine properties of materials. The various discussions of instrumental techniques presented in this book are excellent summaries for the state-of-the-art of materials characterization at this rather critical stage of materials science. The application of the tools described here, and those yet to be developed, holds the key to the development of this infant into a mature science.

Download or read book Trends in Manufacturing and Engineering Management written by S. Vijayan and published by Springer Nature. This book was released on 2020-08-19 with total page 1114 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprises select papers presented at the International Conference on Mechanical Engineering Design (ICMechD) 2019. The volume focuses on the different design aspects involved in manufacturing, composite materials processing as well as in engineering management. A wide range of topics such as control and automation, mechatronics, robotics, composite and nanomaterial design, and welding design are covered here. The book also discusses current research in engineering management on topics like products, services and system design, optimization in design, manufacturing planning and control, and sustainable product design. Given the range of the contents, this book will prove useful to students, researchers and practitioners.

Download or read book Mechanical Behavior and Damage Fracture Mechanism of Deep Rocks written by Sheng-Qi Yang and published by Springer Nature. This book was released on 2022-01-13 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents mainly experimental studies on the mechanical behavior and damage fracture mechanism of deep rocks including sandstone, marble, mudstone and granite, combining with several advanced technologies of X-ray micro-CT and AE monitoring. It has several unique features: 1) Investigates the influence of loading path on triaxial strength and deformation behavior of sandstone and marble; 2) Analyzes the effect of borehole size on triaxial strength and deformation behavior of hollow sandstone; 3) Explores the influence of high temperature on triaxial deformation and permeability behavior of sandstone and granite; 4) to reveal the damage fracture mechanism of deep rocks using spatial AE techniques and X-ray micro CT observations. This work will appeal to a wide readership from technicians in the field of geotechnical engineering and engineering geology to scholars carrying out research in the rock mechanics.