07868nam 22007213 450 991102607640332120241120175023.097807503491160750349115978075034913007503491319780750349109075034910710.1088/978-0-7503-4911-6(CKB)32323145500041(MiAaPQ)EBC31501331(Au-PeEL)EBL31501331(CaBNVSL)thg00083953(OCoLC)1441750175(IOP)9780750349116(EXLCZ)993232314550004120240625d2024 uy 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierNonlinear Ultrasonic Guided Waves1st ed.Bristol [England] (Temple Circus, Temple Way, Bristol BS1 6HG, UK) :IOP Publishing,[2024]1 online resource (335 pages)IOP Ebooks Series"Version: 20240601"--Title page verso.9780750349093 0750349093 Includes bibliographical references.Intro -- Acknowledgments -- Author biography -- Cliff J Lissenden -- Chapter Introduction -- 1.1 Motivation -- 1.2 Brief perspective on nonlinear ultrasonic guided waves -- 1.3 Approach -- 1.4 Content -- 1.5 Closure -- References -- Chapter Preliminaries -- 2.1 Notation -- 2.2 Continuum mechanics -- 2.2.1 Kinematics -- Example 2.2. Normal strains -- Example 2.3. Shear strain -- 2.2.2 Balance laws -- 2.2.3 Stress -- 2.2.4 Constitutive relations -- Example 2.4. Stress components decomposed into linear and nonlinear parts -- Example 2.5. Strain energy function for transversely isotropic material -- 2.3 Elastodynamics -- 2.3.1 Wave equation -- 2.3.2 Wave equation for isotropic materials -- 2.3.3 Attenuation -- 2.4 Closure -- References -- Chapter Nonlinear elastic waves -- 3.1 Bulk longitudinal waves -- Example 3.1. Longitudinal wave nonlinearity -- Example 3.2. Regular perturbation approach to the nonlinear longitudinal wave problem -- Example 3.3. Nonlinear longitudinal wave solution using the method of multiple scales -- Example 3.4. Determine β in terms of Landau-Lifshitz TOECs for an isotropic material -- 3.2 Bulk shear waves -- Example 3.5. Shear wave third harmonic generation -- 3.3 Attenuation -- 3.4 Measurements of nonlinearity -- 3.4.1 Acoustoelasticity -- 3.4.2 Second harmonic generation -- 3.4.3 Wave mixing -- 3.4.4 Nonlinear resonant ultrasound spectroscopy (NRUS) -- 3.4.5 Vibro-acoustics -- 3.4.6 Dynamic acoustoelastic testing -- 3.5 Closure -- References -- Chapter Boundary value problem formulation -- 4.1 Linear BVPs -- 4.1.1 Free surfaces -- 4.1.2 Plates -- 4.1.3 Hollow cylinders -- 4.1.4 Arbitrary cross-sections -- 4.2 Nonlinear BVPs -- 4.2.1 Regular perturbation method -- 4.2.2 Wave interactions -- Example 4.1. Third order interactions -- 4.3 Closure -- References -- Chapter Ultrasonic guided waves-linear features.5.1 Physical characteristics of waves -- 5.1.1 Phase velocity -- 5.1.2 Wavestructure -- 5.1.3 Group velocity -- Example 5.1. Group velocity calculation -- 5.1.4 Attenuation -- 5.2 Rayleigh waves -- 5.3 Waves in plates -- 5.3.1 Shear-horizontal (SH) waves -- 5.3.2 Lamb waves -- 5.3.3 Anisotropic plates -- 5.3.4 Finite-width plates -- 5.4 Hollow cylinder waves -- 5.5 Other types of guided waves -- 5.6 Closure -- References -- Chapter Nonlinear analysis of plates -- 6.1 Reciprocity -- 6.2 Orthogonality -- Example 6.1. Auld's real reciprocity relation -- Example 6.2. Orthogonality of SH waves -- Example 6.3. Orthogonality of Lamb waves -- 6.3 Completeness -- 6.4 Normal mode expansion -- 6.5 Perturbation approach -- 6.6 Internal resonance -- Example 6.4. Second harmonic generation of Lamb waves -- 6.7 Wave mixing -- 6.8 Closure -- References -- Chapter Internal resonance in plates -- 7.1 Power flow for self-interaction -- 7.1.1 Second order -- 7.1.2 Third order -- 7.2 Power flow for mutual interaction -- 7.2.1 Second order co-directional -- Example 7.1. Parity analysis of mutual interaction between SRL and ASH wavefields -- 7.2.2 Third order co-directional -- 7.3 Effect of directionality -- 7.4 Synchronism -- 7.4.1 Second order self-interaction -- 7.4.2 Third order self-interaction -- 7.5 Group velocity matching -- 7.5.1 Co-directional wave mixing -- 7.5.2 Counter-propagating wave mixing -- 7.5.3 Non-collinear wave mixing -- 7.6 Comments on hollow cylinders -- 7.7 Closure -- References -- Chapter Selecting primary waves -- 8.1 Self-interaction in plates -- 8.1.1 Seond harmonic generation -- 8.1.2 Third harmonic generation -- 8.1.3 Method of multiple scales -- 8.2 Mutual interaction in plates -- 8.2.1 Co-directional, θ=0° -- 8.2.2 Counter-propagating, θ=180° -- 8.2.3 Non-collinear, θ≠0° and θ≠180° -- 8.3 Hollow cylinders -- 8.4 Arbitrary cross-section.8.5 Half-space -- 8.6 Closure -- References -- Chapter Finite amplitude pulse loading -- 9.1 Descriptors of nonlinearity -- 9.2 Experimental results from laser generation -- Example 9.1 Relationship between Rayleigh wave components -- 9.3 Modeling waveform evolution -- 9.4 Closure -- References -- Chapter Numerical simulations -- 10.1 Methods -- 10.2 Software tools -- 10.3 Sample problems -- 10.3.1 Reported in the literature -- 10.3.2 Lamb wave analyses using commercial software -- 10.4 Closure -- References -- Chapter Making measurements -- 11.1 Instrumentation -- 11.2 Generation -- 11.2.1 Transmitting transducers -- 11.2.2 Transmitting methods -- 11.3 Reception -- 11.3.1 Receiving transducers -- 11.3.2 Receiving methods -- 11.4 Signal processing -- 11.5 Closure -- References -- Chapter Highlights of experimental testing -- 12.1 Self-interaction -- 12.2 Mutual interaction -- 12.3 Quasi-Rayleigh waves -- 12.4 Closure -- References -- Chapter Perspective -- 13.1 Separation of material nonlinearity from measurement system nonlinearity -- 13.2 Link with the structural design that identifies hot spots to be monitored and a plan for inclusion of nonlinear ultrasonic guided waves in the operations management and maintenance planning -- 13.3 Standards for test methods that are broad enough to be applicable to the emerging needs for offline inspection and in-service monitoring -- 13.4 Define specifications needed to build monitoring systems into self-aware smart structures -- 13.5 Solid connection between nonlinear wave propagation characteristics and the material microstructure that dictates its strength and fracture properties -- References.The book sets the stage for nonlinear guided waves by introducing nonlinear wave propagation in 1D and expanding the mathematical treatment to guided waves. It considers self-interaction for harmonic generation and mutual interactions for wave mixing. It demonstrates the characteristics of nonlinear guided waves numerically and experimentally.IOP Ebooks SeriesWave-motion, Theory ofNonlinear wavesOptical wave guidesUltrasonic testingElectrical engineeringbicsscTECHNOLOGY & ENGINEERING / ElectricalbisacshWave-motion, Theory of.Nonlinear waves.Optical wave guides.Ultrasonic testing.Electrical engineering.TECHNOLOGY & ENGINEERING / Electrical.530.12/4Lissenden Cliff J1398770Institute of Physics (Great Britain),MiAaPQMiAaPQMiAaPQBOOK9911026076403321Nonlinear Ultrasonic Guided Waves4433730UNINA01970nam0 22003131i 450 UON0052903320251006111024.391978-06-7498-789-020250716d2021 |0itac50 baitaIT|||| |||||Revolutionary LifeThe Everyday of the Arab SpringAsef BayatCambridgeMassachuisettsLondonHarvard University Press2021324 p.22 cm.Asef Bayat's Revolutionary Life: The Everyday of the Arab Spring argues that while the Arab Spring revolutions failed to achieve radical political reform, they created profound social changes at the grassroots level, particularly among marginalized groups like women, the poor, and young people, altering norms and empowering individuals to pursue equality and self-rule in their daily lives. The book emphasizes that understanding the relationship between the ordinary and the extraordinary in revolution is crucial for grasping its outcomes, demonstrating how changes in families, schools, and communities represent a lasting "social gain" despite political setbacks.Primavera arabaStudiUONC087528FIUSCambridge (Mass.)UONL000262GBLondonUONL003044909.0974927STORIA DEI PAESI ARABI21BayatAsefUONV1434561849469Harvard University PressUONV245793650ITSOL20251017RICASIBA - SISTEMA BIBLIOTECARIO DI ATENEOUONSIUON00529033SIBA - SISTEMA BIBLIOTECARIO DI ATENEOSI MEGAMAPS 015 SI 53131 6 015 BuonoSIBA - SISTEMA BIBLIOTECARIO DI ATENEOSI2025268 1J 20250716Bolla di consegna n. 29 del 2025 Revolutionary Life4442217UNIOR00690nam 2200265 450 99666733680331620250801152305.088-04-30559-220250801d1987----km y0itay5003 baitaITy 00 yGiorgio e il dragoGiorgio ForattiniMilanoMondadori1987279 p.ill.22 cmCaricatureItaliaBNCF741.5945FORATTINI,Giorgio560640ITcbaREICAT996667336803316XVI.7.E. 366FBUOXVI.7.E.BKFBUOGiorgio e il drago3034844UNISA