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The sustainability of the built environment can only be achieved through the maintenance planning of built facilities during their lifecycle while also considering social, economic, functional, technical, and ecological aspects. Stakeholders should be conscious of the existing tools and knowledge for the optimization of maintenance and rehabilitation actions in consideration of the degradation mechanisms and the risk of failure over time. Knowledge concerning the service life prediction of building elements is crucial to the definition, in a rational and technically informed way, of a set of maintenance strategies over the building’s life cycle. Service life prediction methodologies provide a better understanding of the degradation phenomenon of the analyzed elements, enabling the relation of the characteristics of these elements and their exposure, use, and maintenance conditions with their performance over time. This SI intends to provide an overview of the existing knowledge related to various aspects of “Life Cycle Prediction and Maintenance of Buildings”. Relevant topics to this Special Issue include: Methodologies for service life prediction of buildings and components; Maintainability of buildings and components; Serviceability of building elements; Maintenance and repair actions of buildings and components; Definition and optimization of maintenance policies; Financial analysis of various maintenance plans; Whole life cycle costing; Life cycle assessment.

History of engineering & technology --- energy efficiency --- indoor climate quality --- life cycle economy --- changing operational environment --- municipal building procurement --- climate targets --- Insurance --- mathematical models --- service life prediction models --- natural stone claddings --- insurance premium --- risk assessment --- linoleum and vinyl floorings --- inspection --- pathology --- statistical survey --- healthcare infrastructures --- technical condition --- performance characteristics --- degree of wear --- service life --- preventive maintenance --- Digitization --- Key Performance Indicators --- KPIs --- Asset Management --- Facility Management --- Operations Maintenance &amp --- Repairs --- Decision Support System --- Facility Condition Index --- building --- construction material --- life cycle costs --- thermal insulation system --- conservation --- natural stone --- long-term weathered --- water repellents --- durability --- single-sided NMR --- Life Cycle Assessment uncertainties --- seismic hazard --- building renovation --- retrofit --- buildings --- building components --- building elements --- climate change --- degradation --- maintainability --- service life prediction --- existing structures --- reinforced concrete --- time-dependent reliability --- life cycle --- Gaussian mixture models --- strength degradation --- steel corrosion --- secondary databases --- single-family house --- energy supply system --- payback period --- internal rate of return --- energy price --- Swedish climate zones --- climate adaptation --- maintenance --- operation --- management --- n/a

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• Reference Manager
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The sustainability of the built environment can only be achieved through the maintenance planning of built facilities during their lifecycle while also considering social, economic, functional, technical, and ecological aspects. Stakeholders should be conscious of the existing tools and knowledge for the optimization of maintenance and rehabilitation actions in consideration of the degradation mechanisms and the risk of failure over time. Knowledge concerning the service life prediction of building elements is crucial to the definition, in a rational and technically informed way, of a set of maintenance strategies over the building’s life cycle. Service life prediction methodologies provide a better understanding of the degradation phenomenon of the analyzed elements, enabling the relation of the characteristics of these elements and their exposure, use, and maintenance conditions with their performance over time. This SI intends to provide an overview of the existing knowledge related to various aspects of “Life Cycle Prediction and Maintenance of Buildings”. Relevant topics to this Special Issue include: Methodologies for service life prediction of buildings and components; Maintainability of buildings and components; Serviceability of building elements; Maintenance and repair actions of buildings and components; Definition and optimization of maintenance policies; Financial analysis of various maintenance plans; Whole life cycle costing; Life cycle assessment.

History of engineering & technology --- energy efficiency --- indoor climate quality --- life cycle economy --- changing operational environment --- municipal building procurement --- climate targets --- Insurance --- mathematical models --- service life prediction models --- natural stone claddings --- insurance premium --- risk assessment --- linoleum and vinyl floorings --- inspection --- pathology --- statistical survey --- healthcare infrastructures --- technical condition --- performance characteristics --- degree of wear --- service life --- preventive maintenance --- Digitization --- Key Performance Indicators --- KPIs --- Asset Management --- Facility Management --- Operations Maintenance &amp --- Repairs --- Decision Support System --- Facility Condition Index --- building --- construction material --- life cycle costs --- thermal insulation system --- conservation --- natural stone --- long-term weathered --- water repellents --- durability --- single-sided NMR --- Life Cycle Assessment uncertainties --- seismic hazard --- building renovation --- retrofit --- buildings --- building components --- building elements --- climate change --- degradation --- maintainability --- service life prediction --- existing structures --- reinforced concrete --- time-dependent reliability --- life cycle --- Gaussian mixture models --- strength degradation --- steel corrosion --- secondary databases --- single-family house --- energy supply system --- payback period --- internal rate of return --- energy price --- Swedish climate zones --- climate adaptation --- maintenance --- operation --- management --- n/a

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• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

The sustainability of the built environment can only be achieved through the maintenance planning of built facilities during their lifecycle while also considering social, economic, functional, technical, and ecological aspects. Stakeholders should be conscious of the existing tools and knowledge for the optimization of maintenance and rehabilitation actions in consideration of the degradation mechanisms and the risk of failure over time. Knowledge concerning the service life prediction of building elements is crucial to the definition, in a rational and technically informed way, of a set of maintenance strategies over the building’s life cycle. Service life prediction methodologies provide a better understanding of the degradation phenomenon of the analyzed elements, enabling the relation of the characteristics of these elements and their exposure, use, and maintenance conditions with their performance over time. This SI intends to provide an overview of the existing knowledge related to various aspects of “Life Cycle Prediction and Maintenance of Buildings”. Relevant topics to this Special Issue include: Methodologies for service life prediction of buildings and components; Maintainability of buildings and components; Serviceability of building elements; Maintenance and repair actions of buildings and components; Definition and optimization of maintenance policies; Financial analysis of various maintenance plans; Whole life cycle costing; Life cycle assessment.

energy efficiency --- indoor climate quality --- life cycle economy --- changing operational environment --- municipal building procurement --- climate targets --- Insurance --- mathematical models --- service life prediction models --- natural stone claddings --- insurance premium --- risk assessment --- linoleum and vinyl floorings --- inspection --- pathology --- statistical survey --- healthcare infrastructures --- technical condition --- performance characteristics --- degree of wear --- service life --- preventive maintenance --- Digitization --- Key Performance Indicators --- KPIs --- Asset Management --- Facility Management --- Operations Maintenance &amp --- Repairs --- Decision Support System --- Facility Condition Index --- building --- construction material --- life cycle costs --- thermal insulation system --- conservation --- natural stone --- long-term weathered --- water repellents --- durability --- single-sided NMR --- Life Cycle Assessment uncertainties --- seismic hazard --- building renovation --- retrofit --- buildings --- building components --- building elements --- climate change --- degradation --- maintainability --- service life prediction --- existing structures --- reinforced concrete --- time-dependent reliability --- life cycle --- Gaussian mixture models --- strength degradation --- steel corrosion --- secondary databases --- single-family house --- energy supply system --- payback period --- internal rate of return --- energy price --- Swedish climate zones --- climate adaptation --- maintenance --- operation --- management --- n/a

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The development of modern numerical methods has led to significant advances in the field of fatigue and fracture, which are pivotal issues in structural integrity. Because of the permanent tendency to shorten time-to-market periods and the development cost, the use of the finite element method, extended finite element method, peridynamics, or meshless methods, among others, has represented a viable alternative to experimental methods. This Special Issue aims to focus on the new trends in computational methods to address fatigue and fracture problems. Research on innovative and successful industrial applications as well as on nonconventional numerical approaches is also addressed.

Technology: general issues --- History of engineering & technology --- finite element method --- Taguchi method --- tooth surface contact stress --- tooth profile deviations --- meshing errors --- lead crowning modifications --- critical load --- fracture --- tubular cantilever beam --- U-notch --- theory of critical distances --- LEFM --- mesh density --- mixed mode stress intensity factors --- fatigue crack growth --- FEM --- fatigue failure --- design flaws --- mechanical system --- parametric ALT --- hinge kit system --- XFEM --- ANSYS mechanical --- smart crack growth --- stress intensity factors --- fatigue life prediction --- gears --- Single Tooth Bending Fatigue --- STBF --- Finite Element Model --- material characterization --- multiaxial fatigue --- critical plane --- metal casting --- mold design --- simulation --- optimization --- fatigue life --- reliability --- n/a

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Most metallic components and structures are subjected, in service, to random or variable amplitude loadings. There are many examples: vehicles subjected to loadings and vibrations caused by road irregularity and engine, structures exposed to wind, off-shore platforms undergoing wave-loadings, and so on. Just like constant amplitude loadings, random and variable amplitude loadings can make fatigue cracks initiate and propagate, even up to catastrophic failures. Engineers faced with the problem of estimating the structural integrity and the fatigue strength of metallic structures, or their propensity to fracture, usually make use of theoretical, numerical, or experimental approaches. This reprint collects a series of recent scientific contributions aimed at providing an up-to-date overview of approaches and case studies—theoretical, numerical or experimental—on several topics in the field of fracture, fatigue strength, and the structural integrity of metallic components subjected to random or variable amplitude loadings.

Technology: general issues --- History of engineering & technology --- small cracks --- helicopter flight load spectra --- FALSTAFF flight load spectra --- fatigue crack growth --- surface topography --- optical profilometry --- height digital image correlation --- discontinuous displacements --- triaxial displacements --- fracture analysis --- welded joint --- repair welding thermal shock --- XFEM --- welding linear energy --- high-temperature fatigue --- nickel-based superalloy --- investment casting --- metallography --- turbine blade --- fatigue --- testing systems --- random loadings --- servo-hydraulic --- shaker table --- crack growth --- metallic materials --- plasticity --- crack closure --- spectrum loading --- random loading --- fatigue damage --- power spectral density (PSD) --- spectral methods --- lattice structures --- structural dynamic response --- vibration fatigue testing --- fatigue life prediction --- analytical framework --- fatigue crack --- residual strength --- retardation effect --- nonstationary random loadings --- run test --- short-time Fourier transform --- n/a