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Wind turbines --- Photovoltaic power generation --- Acoustic emission testing --- American National Standards Institute. --- American Clean Power Association.

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This open access book presents established methods of structural health monitoring (SHM) and discusses their technological merit in the current aerospace environment. While the aerospace industry aims for weight reduction to improve fuel efficiency, reduce environmental impact, and to decrease maintenance time and operating costs, aircraft structures are often designed and built heavier than required in order to accommodate unpredictable failure. A way to overcome this approach is the use of SHM systems to detect the presence of defects. This book covers all major contemporary aerospace-relevant SHM methods, from the basics of each method to the various defect types that SHM is required to detect to discussion of signal processing developments alongside considerations of aerospace safety requirements. It will be of interest to professionals in industry and academic researchers alike, as well as engineering students. This article/publication is based upon work from COST Action CA18203 (ODIN - http://odin-cost.com/), supported by COST (European Cooperation in Science and Technology). COST (European Cooperation in Science and Technology) is a funding agency for research and innovation networks. Our Actions help connect research initiatives across Europe and enable scientists to grow their ideas by sharing them with their peers. This boosts their research, career and innovation.

Materials science --- Aerospace & aviation technology --- Circuits & components --- Mensuration & systems of measurement --- Imaging systems & technology --- Mechanics of solids --- Structural health monitoring --- Aerospace monitoring --- Nondestructive evaluation --- Acoustic emission --- Guided waves --- Vibration monitoring --- Acousto-ultrasonics --- Fiber optical sensors --- Defect types --- Aerospace requirements --- open access

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The last few decades have seen rapid development in the field of surface engineering and its applications in almost all industrial sectors. Tribological coatings, which are an important aspect of surface engineering, are today applied on machine component surfaces for a diverse range of moving machine components to control (mostly to minimize) friction and wear in order to conserve energy and materials. This reprint book is a compilation of 11 research papers contributed by experts in the field of surface engineering and tribology. These papers have dealt with the synthesis of various types of coatings, characterization and applications under different operating conditions. It is hoped that this reprint book will be of interest, not only to researchers, but also to practicing engineers and technologists in the industry.

Cr-Ti-B-N films --- magnetron sputtering --- microstructure --- friction and wear --- GH4169 alloy --- Ag–Mo co-implantation --- ion-beam-assisted bombardment technology (IBAB) --- wear mechanism --- polymer coating --- graphene --- tribological properties --- elevated temperature --- VCN–Cu films --- mechanical --- friction property --- wear property --- high-entropy alloy (HEA) matrix coating --- plasma spraying --- wear resistance --- microhardness --- bonding strength --- Cu/MoS2 coatings --- Cu-Al/MoS2 coatings --- annealing treatment --- γ2-Cu9Al4 phase --- scratch test --- acoustic emission --- thin films --- silicon carbide --- multilayered AlCrN coating --- Raman spectroscopy --- tribo-corrosion --- sliding wear --- DLC --- MoS2 --- coating --- elastomer --- seals --- TiB2 --- ZrB2 --- coating blade --- anti-wear --- stainless steel coating --- sputtering --- wear --- adhesion --- friction --- structure

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The last few decades have seen rapid development in the field of surface engineering and its applications in almost all industrial sectors. Tribological coatings, which are an important aspect of surface engineering, are today applied on machine component surfaces for a diverse range of moving machine components to control (mostly to minimize) friction and wear in order to conserve energy and materials. This reprint book is a compilation of 11 research papers contributed by experts in the field of surface engineering and tribology. These papers have dealt with the synthesis of various types of coatings, characterization and applications under different operating conditions. It is hoped that this reprint book will be of interest, not only to researchers, but also to practicing engineers and technologists in the industry.

History of engineering & technology --- Cr-Ti-B-N films --- magnetron sputtering --- microstructure --- friction and wear --- GH4169 alloy --- Ag–Mo co-implantation --- ion-beam-assisted bombardment technology (IBAB) --- wear mechanism --- polymer coating --- graphene --- tribological properties --- elevated temperature --- VCN–Cu films --- mechanical --- friction property --- wear property --- high-entropy alloy (HEA) matrix coating --- plasma spraying --- wear resistance --- microhardness --- bonding strength --- Cu/MoS2 coatings --- Cu-Al/MoS2 coatings --- annealing treatment --- γ2-Cu9Al4 phase --- scratch test --- acoustic emission --- thin films --- silicon carbide --- multilayered AlCrN coating --- Raman spectroscopy --- tribo-corrosion --- sliding wear --- DLC --- MoS2 --- coating --- elastomer --- seals --- TiB2 --- ZrB2 --- coating blade --- anti-wear --- stainless steel coating --- sputtering --- wear --- adhesion --- friction --- structure

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The aim of this book is to collect the newest contributions by eminent authors in the field of NDT-SHM, both at the material and structure scale. It therefore provides novel insight at experimental and numerical levels on the application of NDT to a wide variety of materials (concrete, steel, masonry, composites, etc.) in the field of Civil Engineering and Architecture.

pulsed eddy current --- ferromagnetic sample --- conductivity --- permeability --- non-destructive test --- impact-echo method --- tunnel void --- experimental model --- numerical simulation --- signal analysis --- transfer learning --- spectrogram analysis --- selecting samples --- non-destructive testing --- hammering sound --- regression algorithm --- Lamb wave --- microcracks testing --- multi-channel detection --- signal-to-noise ratio --- thin-walled tube --- damage detection --- cepstral analysis --- Structural Health Monitoring --- Machine Learning --- Teager-Kaiser Energy --- gammatone filter --- acoustic emission --- melting ice --- aviation --- fuel system --- acoustoelastic effect --- stress estimation --- surface waves --- weak anisotropy material --- damage assessment --- smart sensor --- magnetoelastic strip --- 3D printing --- additive manufacturing --- stress-strain relation --- nondestructive testing --- optical-radiation --- photoacoustic --- photothermal --- acoustic energy --- acoustic counts --- CFRP --- single lap joint --- joggled lap joints --- fractography --- classical acoustic nonlinearity --- constitutive behavior --- ultrasonic testing --- existing buildings --- seismic vulnerability assessment --- non-invasive experimental technics --- BIM models --- non-destructive techniques (NDT) --- historical buildings --- maintenance --- stone columns --- ultrasonic test --- impact test --- concrete --- impact-echo --- elastic wave --- SIBIE --- 3D visualization --- accelerometer --- laser doppler vibrometer --- remote sensing --- reinforced concrete --- four-point bending test --- structural health monitoring --- nondestructive testing techniques --- fiber optic sensors --- acoustic emission monitoring --- digital image correlation