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Fracture, fatigue, and other subcritical processes, such as creep crack growth or stress corrosion cracking, present numerous open issues from both scientific and industrial points of view. These phenomena are of special interest in industrial and civil metallic structures, such as pipes, vessels, machinery, aircrafts, ship hulls, and bridges, given that their failure may imply catastrophic consequences for human life, the natural environment, and/or the economy. Moreover, an adequate management of their operational life, defining suitable inspection periods, repairs, or replacements, requires their safety or unsafety conditions to be defined. The analysis of these technological challenges requires accurate comprehensive assessment tools based on solid theoretical foundations as well as structural integrity assessment standards or procedures incorporating such tools into industrial practice.

n/a --- reuse --- microstructure --- fatigue crack growth --- micromechanisms --- weld joint --- FFM --- slow strain rate tensile test --- fracture --- orthotropic steel bridge deck --- fatigue --- three-point bending fatigue --- EMC --- notch effect --- thermal desorption spectroscopy --- synchrotron radiation --- tube specimen with hole --- critical distance --- Inconel 690 tube --- fatigue test --- failure assessment diagram (FAD) --- alloy steel --- X-ray techniques --- overload --- aluminium plates --- fatigue strength --- fastener --- high strength low alloy steels (HSLA) --- internal fatigue fracture --- ?CT imaging --- hydrogen induced cracking (HIC) --- notch --- rotating bending --- local strain --- aluminum foam sandwich --- structural steel --- surface defect --- compressive residual stress --- blunt V-notches --- cathodic polarization --- needle peening --- semi-elliptical crack --- fatigue life --- hydrogen-induced delayed fracture --- fatigue design curve --- subcritical propagation --- cathodic polarization or cathodic charge (CC) --- hydrogen embrittlement --- aircraft --- fatigue limit --- environmentally assisted cracking --- ductile failure --- mode I loading --- cathodic protection (CP) --- peel strength --- hot-press-formed steel --- crack initiation --- retardation --- theory of critical distances --- welded joint

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In dealing with fracture and fatigue assessments of structural components, different approaches have been proposed in the literature. They are usually divided into three subgroups according to stress-based, strain-based, and energy-based criteria. Typical applications include both linear elastic and elastoplastic materials and plain and notched or cracked components under both static and fatigue loadings. The aim of this Special Issue is to provide an update to the state-of-the-art on these approaches. The topics addressed in this Special Issue are applications from nano- to full-scale complex and real structures and recent advanced criteria for fracture and fatigue predictions under complex loading conditions, such as multiaxial constant and variable amplitude fatigue loadings.

History of engineering & technology --- fatigue life prediction --- dissipated energy --- thermo-graphic technique --- thermal evolution --- peridynamics --- composite --- ordinary state-based --- double cantilever composite beam (DCB) --- delamination --- control volume concept --- critical plane approach --- fatigue life assessment --- severely notched specimens --- strain energy density --- monitoring of fatigue crack --- damage index --- ultrasonic guided waves --- sensor network --- structural health monitoring --- thermal fatigue --- thermal barrier coat --- master–slave model --- life prediction --- nozzle guide vane --- microcracks --- multiple fatigue crack --- crack coalescence --- concrete beams --- damage evolution --- multiscale --- fatigue damage evolution --- ABAQUS subroutine --- 3D reconstruction --- MCT scanning --- fatigue life --- cleat filler --- broken coal seam --- wellbore stability --- analytical model --- affecting factors --- fatigue crack --- welded bogie frame --- wheel polygon --- rail corrugation --- running speed --- finite fracture mechanics --- nanoscale --- silicon --- brittle --- notch --- fracture --- nanodevice --- life assessment --- crack initiation --- crack propagation --- finite element method --- scroll compressor --- fatigue --- crack --- metal --- structure --- welded joint --- FEM

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This book illustrates the exciting possibilities being opened up by X-ray computed tomography (CT) to follow the behavior of materials under conditions as close as possible to those encountered during their manufacture or in operation.The scientific chapters selected for this book describe results obtained using synchrotron or laboratory devices during in situ or ex situ experiments. They characterize microstructures across length scales ranging from tens of nanometers to a few tens of micrometers.In this collection, X-ray CT shines a light on the mechanical properties of engineering materials, such as aluminum or magnesium alloys, stainless steel, aluminum, polymer composites, or ceramic foam. In these experiments, X-ray CT is able to image and quantify the damage occurring during tensile, compression, indentation, or fatigue tests.Of course, X-ray CT can illuminate the structure and behavior of natural materials too. Here it is applied to bone or natural snow to study their mechanical behavior, as well as materials from the agri-food sector. Its versatility is exemplified by analyses of topics as diverse as the removal of olive oil from kitchen sponges by squeezing and rinsing, to the effect of temperature changes on the structure of ice cream.

in-situ X-ray computed tomography --- thermal-mechanical loading --- polymer bonded explosives --- mesoscale characterization --- structure evolution --- particle morphology --- heat treatment --- aluminum cast alloy --- mechanical properties --- Ostwald ripening --- nanotomography --- phase-contrast imaging --- tomographic reconstruction --- dynamic tomography --- motion compensation --- projection-based digital volume correlation --- X-ray μCT --- in-situ experiments --- flow cell --- alkaline manganese batteries --- X-ray tomography --- in operando --- in situ --- zinc powder --- laser powder bed fusion --- additive manufacturing --- in-situ imaging --- Ti6Al4V --- lattice structures --- mechanics --- corrosion --- biomaterial --- battery --- aluminum foams --- intermetallics --- finite element analysis --- damage --- polycrystal plasticity --- X-ray diffraction imaging --- topotomography --- in situ experiment --- finite element simulation --- lattice curvature --- rocking curve --- ice cream --- microstructure --- tomography --- ice crystals --- coarsening --- soft solids --- bone --- X-ray radiation --- tissue damage --- SR-microCT --- digital volume correlation --- temperature control --- electrochemical cell design --- batteries --- helical CT --- contrast agent --- high cycle fatigue (HCF) --- fibre break --- fibre tows --- Freeze Foaming --- in situ computed tomography --- non-destructive testing --- bioceramics --- aging --- crack initiation and propagation --- damage modes --- osteoporosis --- osteogenesis imperfecta --- porosity --- bone matrix quality --- micro-CT --- snow grains --- snow microstructure --- snow properties --- pore morphology --- voids --- fiber-reinforced concrete --- CT scan technology --- DIP software --- X-ray tomography (X-ray CT) --- 3D image analysis --- hydrogen embrittlement --- stainless steel

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This book illustrates the exciting possibilities being opened up by X-ray computed tomography (CT) to follow the behavior of materials under conditions as close as possible to those encountered during their manufacture or in operation.The scientific chapters selected for this book describe results obtained using synchrotron or laboratory devices during in situ or ex situ experiments. They characterize microstructures across length scales ranging from tens of nanometers to a few tens of micrometers.In this collection, X-ray CT shines a light on the mechanical properties of engineering materials, such as aluminum or magnesium alloys, stainless steel, aluminum, polymer composites, or ceramic foam. In these experiments, X-ray CT is able to image and quantify the damage occurring during tensile, compression, indentation, or fatigue tests.Of course, X-ray CT can illuminate the structure and behavior of natural materials too. Here it is applied to bone or natural snow to study their mechanical behavior, as well as materials from the agri-food sector. Its versatility is exemplified by analyses of topics as diverse as the removal of olive oil from kitchen sponges by squeezing and rinsing, to the effect of temperature changes on the structure of ice cream.

in-situ X-ray computed tomography --- thermal-mechanical loading --- polymer bonded explosives --- mesoscale characterization --- structure evolution --- particle morphology --- heat treatment --- aluminum cast alloy --- mechanical properties --- Ostwald ripening --- nanotomography --- phase-contrast imaging --- tomographic reconstruction --- dynamic tomography --- motion compensation --- projection-based digital volume correlation --- X-ray μCT --- in-situ experiments --- flow cell --- alkaline manganese batteries --- X-ray tomography --- in operando --- in situ --- zinc powder --- laser powder bed fusion --- additive manufacturing --- in-situ imaging --- Ti6Al4V --- lattice structures --- mechanics --- corrosion --- biomaterial --- battery --- aluminum foams --- intermetallics --- finite element analysis --- damage --- polycrystal plasticity --- X-ray diffraction imaging --- topotomography --- in situ experiment --- finite element simulation --- lattice curvature --- rocking curve --- ice cream --- microstructure --- tomography --- ice crystals --- coarsening --- soft solids --- bone --- X-ray radiation --- tissue damage --- SR-microCT --- digital volume correlation --- temperature control --- electrochemical cell design --- batteries --- helical CT --- contrast agent --- high cycle fatigue (HCF) --- fibre break --- fibre tows --- Freeze Foaming --- in situ computed tomography --- non-destructive testing --- bioceramics --- aging --- crack initiation and propagation --- damage modes --- osteoporosis --- osteogenesis imperfecta --- porosity --- bone matrix quality --- micro-CT --- snow grains --- snow microstructure --- snow properties --- pore morphology --- voids --- fiber-reinforced concrete --- CT scan technology --- DIP software --- X-ray tomography (X-ray CT) --- 3D image analysis --- hydrogen embrittlement --- stainless steel