01841nam0 22004093i 450 VAN017000620230614033818.305N978331942330220210701d2016 |0itac50 baengCH|||| |||||Radioactivity and RadiationWhat They Are, What They Do, and How to Harness ThemClaus Grupen, Mark RodgersChamSpringer2016xi, 248 p.ill.24 cmVAN0170017Radioactivity and Radiation : What They Are, What They Do, and How to Harness Them181344600A79 (77-XX)Physics [MSC 2020]VANC023182MF81V35Nuclear physics [MSC 2020]VANC023270MFBiological Effects of RadiationKW:KEnvironmental RadiationKW:KInteractions of Ionising Radiation with MatterKW:KNon-Ionising RadiationKW:KNuclear InstrumentationKW:KNuclear accidentsKW:KRadiation ProtectionKW:KCHChamVANL001889GrupenClausVANV153681150507RodgersMarkVANV153683810075Springer <editore>VANV108073650ITSOL20240614RICAhttp://doi.org/10.1007/978-3-319-42330-2E-book – Accesso al full-text attraverso riconoscimento IP di Ateneo, proxy e/o ShibbolethBIBLIOTECA DEL DIPARTIMENTO DI MATEMATICA E FISICAIT-CE0120VAN08NVAN0170006BIBLIOTECA DEL DIPARTIMENTO DI MATEMATICA E FISICA08CONS e-book 2838 08eMF2838 20210701 Radioactivity and Radiation : What They Are, What They Do, and How to Harness Them1813446UNICAMPANIA05129nam 2200601Ia 450 991100669210332120200520144314.01-280-64103-797866106410310-08-045887-49780080446912(CKB)1000000000365225(EBL)270165(OCoLC)476002029(SSID)ssj0000170796(PQKBManifestationID)12054969(PQKBTitleCode)TC0000170796(PQKBWorkID)10243547(PQKB)11699573(MiAaPQ)EBC270165(EXLCZ)99100000000036522520060508d2006 uy 0engur|n|---|||||txtccrHigh cycle fatigue a mechanics of materials perspective /Theodore NicholasOxford Elsevier20061 online resource (657 p.)Description based upon print version of record.0-08-044691-4 Includes bibliographical references and index.Front cover; Title page; Copyright page; Table of contents; Preface; Part One Introduction and Background; 1 Introduction; Historical background; What is High Cycle Fatigue?; HCF design considerations; HCF design requirements; Root causes of HCF; Field failures; Damage tolerance; Application to HCF; Current status; Field experience; 2 Characterizing Fatigue Limits; Constant life diagrams; Gigacycle fatigue; Characterizing fatigue cycles; Fatigue limit stresses; Equations for constant life diagrams; Haigh diagram at elevated temperature; Role of mean stress in constant life diagramsJasper equationObservations on step tests at negative R; 3 Accelerated Test Techniques; Historical background; Coaxing; Early test methods; Step test procedures; Statistical considerations; Influence of number of steps; Validation of the step-test procedure; Observations from the last loading block; Comments on step testing; Staircase testing; Probability plots; Statistical analysis; Dixon and Mood method; Numerical simulations; Sample size considerations; Construction of an "artificial" staircase; Other methods; Random fatigue limit (RFL) model; Data analysisSummary comments on FLS statisticsConstant stress tests; Run-outs and maximum likelihood (ML) methods; Resonance testing techniques; Frequency effects; Part Two Effects of Damage on HCF Properties; 4 LCF-HCF Interactions; Small cracks and the Kitagawa diagram; Behavior of notched specimens; Effects of LCF loading on HCF limit stress; Studies of naturally initiated LCF cracks; Crack-propagation thresholds; Overloads and load-history effects; An overload model; Analysis using an overload model; Examples of LCF-HCF interactions; Design considerations; LCF-HCF nomenclatureExample of anomalous behaviorAnother example of anomalous behavior; Combined cycle fatigue case studies; 5 Notch Fatigue; Introduction; Stress concentration factor; What is kt?; Fatigue notch factor; kf versus kt relations; Equations for kf; Fracture mechanics approaches for sharp notches; Cracks versus notches; Mean stress considerations; Plasticity considerations; Negative mean stresses; Fatigue limit strength of notched components; Non-damaging notches; Size effects and stress gradients; Critical distance approaches; Analysis methods; Effects of defects on fatigue strengthNotch fatigue at elevated temperature6 Fretting Fatigue; Introduction; Observations of fretting fatigue; Representing total contact loads, Q and P; Load and stress distributions; Effects of local and bulk stresses on stress intensity; Mechanisms of fretting fatigue; Mechanics of fretting fatigue; Stress analysis of contact regions; Multiple crack considerations; Analytical solutions; Role of slip amplitude; Stress-at-a-point approaches; Fracture mechanics approaches; A combined stress and K approach; Comparison of fretting-fatigue fixtures; Role of coefficient of frictionAverage versus local coefficient of frictionDr Theodore Nicholas ran the High Cycle Fatigue Program for the US Air Force between 1995 and 2003 at Wright-Patterson Air Force Base, and is one of the world's leading authorities on the subject, having authored over 250 papers in leading archival journals and books. Bringing his plethora of expertise to this book, Dr Nicholas discusses the subject of high cycle fatigue (HCF) from an engineering viewpoint in response to a series of HCF failures in the USAF and the concurrent realization that HCF failures in general were taking place universally in both civilian and military engines. TMaterialsFatigueMaterialsDynamic testingMaterialsFatigue.MaterialsDynamic testing.620.1126Nicholas T(Theodore)627404MiAaPQMiAaPQMiAaPQBOOK9911006692103321High cycle fatigue1212863UNINA