Relevant bibliographies by topics / Service life of components

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Service life of components'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Service life of components"

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Yang, Jian, and Mike P. Papazoglou. "Service components for managing the life-cycle of service compositions." Information Systems 29, no. 2 (April 2004): 97–125. http://dx.doi.org/10.1016/s0306-4379(03)00051-6.

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Linins, Oskars, Ernests Jansons, Armands Leitans, Irina Boiko, and Janis Lungevics. "Estimation of Service Life of Mechanical Engineering Components." Key Engineering Materials 799 (April 2019): 71–76. http://dx.doi.org/10.4028/www.scientific.net/kem.799.71.

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The paper is aimed to the methodology for estimation of service life of mechanical engineering components in the case of elastic-plastic contact of surfaces. Well-known calculation methods depending on physics, theory of probability, the analysis of friction pair’ shape and fit include a number of parameters that are difficult or even impossible to be technologically controlled in the manufacturing of mechanical engineering components. The new approach for wear rate estimation using surface texture parameters as well as physical-mechanical properties and geometric parameters of components is proposed. The theoretical part of the calculations is based on the 3D surface texture principles, the basics of material fatigue theory, the theory of elasticity and the contact mechanics of surfaces. It is possible to calculate the service time of the machine, but the process of running-in of the components is relatively short (less than 5%), therefore, the service time is mainly determined by a normal operating period, which also was used to evaluate this period. The calculated input parameters are technologically and metrologically available and new method for calculating the service time can be used in the design process of the equipment. The results of approbation of the method for estimation service time of mechanical engineering, which prove the applicability of mentioned method, are offered as well.
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Cole, Ivan, and Penny Corrigan. "Predicting the service life of buildings and components." Proceedings of the Institution of Civil Engineers - Construction Materials 164, no. 6 (December 2011): 305–14. http://dx.doi.org/10.1680/coma.2011.164.6.305.

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Lee, Sanghyo, and Yonghan Ahn. "Analyzing the Long-Term Service Life of MEP Using the Probabilistic Approach in Residential Buildings." Sustainability 10, no. 10 (October 21, 2018): 3803. http://dx.doi.org/10.3390/su10103803.

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Establishing an effective long-term maintenance plan is essential to ensure the sustainability of a building. Among the various components of a building, the mechanical, electrical, and plumbing (MEP) components are complexly affected by various parameters, such as quality and user pattern, with respect to the service life. Besides, these components are replaced at different points in time, which becomes one of the main risks when establishing a maintenance plan for the building. Therefore, it is very important to consider the uncertainty in calculating the service lives of MEP components in a systematic and reasonable way. This study aims to systemize the MEP components of residential buildings and analyze their service life patterns using a probabilistic approach for long-term maintenance planning. The analysis was performed on 54,318 maintenance cases from 1998 to 2017 at 65 twenty-five-year-old rental apartment buildings in South Korea. Before performing the analysis, a service life matrix was established by classifying the MEP components into 12 types and setting the service life time at 6–25 years. Then, the service life distribution was derived for each MEP component. The probabilistic approach can provide information for rational maintenance decision-making regarding each MEP component as well as basic service life settings. Since the performance of the MEP components deteriorates due to various reasons, de facto uncertainty exists in the service life of each component; thus, the probabilistic approach can serve as an important decision-making method. If probabilistic methods are developed by acquiring the cost data in addition to the frequency of maintenance activity used in this study, a more effective long-term maintenance plan can be established.
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(Gray)Byrd, L. G. "Service Life and Life of Service: The Maintenance Commitments." Transportation Research Record: Journal of the Transportation Research Board 1650, no. 1 (January 1998): 5–9. http://dx.doi.org/10.3141/1650-01.

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The magnitude of today’s highway maintenance challenge, the impact of research on maintenance, basic objectives that should drive a maintenance program, and the progress made in meeting them over the last 4 decades are discussed. Highway maintenance should include the objectives of providing a consistently safe, comfortable, and efficient travel way for highway users and a safe environment for maintenance crews; providing optimum service life; maintaining as-built capacity and reliability; inviting, supporting, and using research and innovation; and performing with professionalism, competence, and diligence. Some of the challenges in meeting these objectives today are accelerating rates of deterioration, limited time available to work, complex interchanges and crowded rights-of-way, environmental restrictions, a litigious society, and public skepticism about all government functions. Three categories of responses are technologies, policies, and professionalism. A significant array of new, innovative tools and other products of research are making maintenance technology more effective. Maintenance managers need to be activists in promoting progressive policies in providing as-built capacity while performing maintenance and repair work and in procuring products and services. Maintenance policies should include recognition of user costs, use of performance specifications, fabrication of off-site repair components, design of repairable highway systems, use of corrosion-resistant materials, privatization of segments of the maintenance program, and establishment of an international maintenance technology reference program. Individual professionals must embrace continuing education, environmental sensitivity, community service, research and development, innovative management, and societal and political responsibilities.
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Dvorkin, E. M., and Ya I. Blyashko. "Increasing the service life of components of cryogenic machines." Chemical and Petroleum Engineering 23, no. 1 (January 1987): 39–41. http://dx.doi.org/10.1007/bf01150652.

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Masters, Larry W. "Prediction of service life of building materials and components." Materials and Structures 19, no. 6 (November 1986): 417–22. http://dx.doi.org/10.1007/bf02472145.

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Masters, Larry W., and Erik Brandt. "Prediction of service life of building materials and components." Materials and Structures 20, no. 1 (January 1987): 55–77. http://dx.doi.org/10.1007/bf02472728.

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Janjua, Shahana, Prabir Sarker, and Wahidul Biswas. "Impact of Service Life on the Environmental Performance of Buildings." Buildings 9, no. 1 (January 2, 2019): 9. http://dx.doi.org/10.3390/buildings9010009.

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The environmental performance assessment of the building and construction sector has been in discussion due to the increasing demand of facilities and its impact on the environment. The life cycle studies carried out over the last decade have mostly used an approximate life span of a building without considering the building component replacement requirements and their service life. This limitation results in unreliable outcomes and a huge volume of materials going to landfill. This study was performed to develop a relationship between the service life of a building and building components, and their impact on environmental performance. Twelve building combinations were modelled by considering two types of roof frames, two types of wall and three types of footings. A reference building of a 50-year service life was used in comparisons. Firstly, the service life of the building and building components and the replacement intervals of building components during active service life were estimated. The environmental life cycle assessment (ELCA) was carried out for all the buildings and results are presented on a yearly basis in order to study the impact of service life. The region-specific impact categories of cumulative energy demand, greenhouse gas emissions, water consumption and land use are used to assess the environmental performance of buildings. The analysis shows that the environmental performance of buildings is affected by the service life of a building and the replacement intervals of building components.
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Talon, A., D. Boissier, and J. Lair. "Service-life assessment of building components: application of evidence theory." Canadian Journal of Civil Engineering 35, no. 3 (March 2008): 287–300. http://dx.doi.org/10.1139/l07-109.

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This paper deals with the assessment of the service life of in-service building components subjected to known environmental and usage conditions. This assessment is complex because of two primary features. First, the assessment has to be carried within a multiscale context: a geometric scale that ranges from the material or elemental to building scale; a range in the complexity of the degradation (phenomena that varies from a single phenomenon to the consideration of several degradation scenarios); a range of possible performance requirements, from one function to several; and consideration, as well, to the time over which the process is carried out that may span from the design stage to that of management and repair. Second, this assessment must also take into consideration the availability and features of service-life data that by nature is heterogeneous, imprecise, uncertain, and incomplete. In this context, a comprehensive methodology is developed using all available data on service life derived from existing methods of service-life assessment of materials, elements or building components. Such data may, for example, be extracted from fundamental studies on durability, accelerated short-term exposure tests, statistical methods, factorial methods, feedback from practice, or expert opinion or other sources. The main stages of this methodology are: (i) identification of all possible degradation scenarios provided by failure mode and effects analysis (FMEA); (ii) collection of all available service-life data (SL-data) associated with these degradation scenarios, transformation of this data into a fuzzy-set format, and assessment of its quality; (iii) processing of unification of data and aggregation of data; and (iv) assessment of the service life of building components. The case study of a window unit allows for: (i) service-life assessment of a building component to be processed by unification of data and aggregation of data and (ii) a conclusion to be deduced.
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Dissertations / Theses on the topic "Service life of components"

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Rimsjö, Åsa. "Environmental Assessment of Building Products and Components in a Service Life Perspective." Licentiate thesis, KTH, Civil and Architectural Engineering, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-1600.

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This thesis presents a survey of different tools, used byenvironmental consultants in Sweden, for their recommendationsof building products and components in different constructionprojects. The goal was to identify possible improvements of thetools so that life cycle methodology could be used to a largerextent than today. This thesis also presents a general methodfor multi-criteria assessment. The purpose of this generalmethod was to show how assessment of environmental impacts,cost and prediction of service life have to be combined for acomprehensive view over all the criteria that influencedecision-making in different construction projects.

The evaluation of the present role of environmentalconsultants in the building process in Sweden and their toolsis based on a literature study together with interviews.Advantages and disadvantages of the different tools fordecision-making have been identified. It was found that thereare many improvements to be made, for example, concerningbuilding product declarations. The declarations have to containmore quantitative data and the guidelines have to be furtherdeveloped to secure equivalence in product comparisons. Thestudy showed that an environmental consultant seldom makes anelaborate assessment of aspects other than environmentalimpacts. Others, for example, the client or contractor,consider aspects of economy and technical functionality.However, there is a need of a more comprehensive view wherecosts and technical functionality are included in theassessment together with environmental concerns. If differentaspects are treated separately there is a risk ofsuboptimisations. This need has been identified by for exampleconsultants and the commission of the Swedish government and isoften emphasised by the building material industry.

In Life Cycle Assessment (LCA) the functionality, as well asthe time of use should be reflected in the definition thefunctional unit of the study. Calculations of Life Cycle Cost(LCC) also include the time aspect and compared systems shouldfulfil the same requirements of functionality. Therefore, it isof obvious interest to find a method that brings together LCA,LCC and service life planning (with estimations of servicelives). The presented method of multi-criteria assessment is toa large extent considered to be of practical use for practisingconsultants in their recommendations of the preferable choice,as soon as a pedagogical interface has been developed. Inaddition, a simplified LCA technique has to be used, where somesystemlimits and assumptions are pre-defined. A multi-criteriaassessment approach is one step ahead to fulfil therequirements of the authorities and the society. Themulti-criteria approach also helps the building sector to worktowards the goal of increased environmental concern in thesector and the overarching goal of an environmental sustainablesociety.

Key words:life cycle assessment, LCA, environmentaldeclarations, building product declarations, environmentalconsultants, tool for decision-making, service life planning,estimation of service life, the factor method, multi-criteriaassessment

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Fitch, Michael G. "Determination of the end of functional service life for concrete bridge components." Thesis, Virginia Tech, 1993. http://hdl.handle.net/10919/42956.

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The transportation engineering community of the United States faces a tremendous problem: the gradual deterioration of the nation's bridges. A major component of the overall bridge deterioration problem is the corrosion-induced deterioration of reinforced concrete bridge components that are exposed to de-icing salts. The progression of events resulting from corrosion of the reinforcing steel includes cracking, delamination, spalling, and patching of the surface concrete.

Bridge components reach the end of their functional service life when the level of damage warrants rehabilitation. The objective of this study was to determine the end of functional service life for concrete bridge decks, piers, and abutments by quantifying terminal levels of physical damage. The approach for quantifying terminal damage levels involved obtaining recommendations from state Department of Transportation (DOT) bridge engineers via an opinion survey.

A field study of 18 existing concrete bridges that had been designated for rehabilitation was conducted to develop concrete bridge component maps showing areas of physical damage. Deck damage maps were produced using a ground-based photogrammetry system developed in this study, while pier and abutment damage maps were drawn by hand in the field. Survey Kits based on the component damage maps were distributed to bridge engineers in 25 states that use de-icing salts. The engineers evaluated the maps and recommended when each component should be, or should have been, rehabilitated~ Based on the engineers' responses, linear regression prediction models were developed to relate the recommended bridge component rehabilitation time point to the physical damage level. Based on the prediction models, two viable terminal damage levels for concrete bridge decks, and a partial terminal damage level for concrete bridge piers, were quantified.


Master of Science
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Liu, Zhimin. "A methodology for probabilistic remaining creep life assessment of gas turbine components." Diss., Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/13004.

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Smith, Stephen R. "An investigation into the effects of hard turning surface integrity on component service life." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/17526.

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Foulard, Stéphane. "Online and real-time load monitoring for remaining service life prediction of automotive transmissions : damage level estimation of transmission components based on a torque acquisition." Thesis, Ecully, Ecole centrale de Lyon, 2015. http://www.theses.fr/2015ECDL0012.

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Ce travail de recherche propose le développement et la validation d’une méthode de prédiction in-situ et temps réel de la durée de vie utile restante des engrenages de boîtes de vitesses automobiles de série. Cette méthode est destinée à être implantée dans des unités de commande électronique standards. En s’attachant tout particulièrement à proposer une solution simple, fiable, rentable et facilement transposable pour tout type de configuration, le système se base sur la combinaison d’une méthode d’acquisition des couples agissants sur la boîte de vitesses et d’une estimation continue des niveaux d’endommagement des engrenages. Un état de l’art et les fondamentaux théoriques d’une estimation de l’endommagement par une approche de contrainte nominale et une accumulation linéaire des endommagements partiels sont abordés dans un premier temps. La structure globale de l’algorithme de calcul de l’endommagement est ensuite étudiée et l’approche méthodologique adoptée pour sa mise au point expliquée. Cette dernière repose en grande partie sur un modèle complet de véhicule valide par des essais sur route et des mesures, où une attention toute particulière est portée à la représentation des changements de rapport et de la dynamique de la boîte de vitesses. Deux types de boite de vitesses sont alors considérées, une boite manuelle standard et une boite à double embrayage, et une spécification technique pour la configuration de l’algorithme ainsi qu’une analyse des besoins pour la méthode d’acquisition des couples sont formulées. En se basant sur ces études, un observateur d’état capable de reconstruire le couple agissant sur les disques d’embrayage ainsi que le couple en sortie de boite est développé et valide. Finalement, une synthèse de la méthode complète et de l’algorithme final est adressée, et les avantages économiques et écologiques liés à l’introduction de cette méthode pour des mesures de conception légère des boîtes de vitesses automobiles sont abordés et évalués
This research work proposes the development and the validation of an online and real-time method to predict the remaining service life of the gearwheels of automotive transmissions, with the aim of implementing it on standard control units of series-production vehicles. By focusing on the proposition of a simple, reliable and easy-to-implement solution, the system relies on the combination of an acquisition method of the torques acting in the transmission and a continuous estimation of the damage levels of the gearwheels. Firstly, a state of the art and the theoretical basics are presented concerning a damage estimation based on a nominal stress concept and a linear damage accumulation. The global structure of the damage estimation algorithm is then analyzed and the methodological approach adopted for its development is explained. This is based in principal on a drivetrain model, validated with tests and measurements, where a particular attention is paid to the representation of the gear shifts and the transmission dynamics. Two types of transmissions are considered, namely a standard manual transmission and a dual clutch transmission mounted in series-production cars. Respectively a requirement analysis for the configuration of the algorithm as well as a requirement specification for the torque acquisition method are performed. On this basis, a state observer is developed and validated, which is able to reconstruct the clutch torque and the transmission output torque. Finally, a synthesis of the complete method and the final version of the algorithm are addressed, and the economic and ecological advantages of the introduction of the method in the context of lightweight design measures are discussed and evaluated
Kurzfassung Diese Dissertation beschreibt die Entwicklung einer Online- und Echtzeit-Methode zur Vorhersage der restlichen Lebensdauer von den Zahnradern eines Kraftfahrzeuggetriebes. Diese Methode ist fur eine Implementierung auf Standard-Steuergeraten vorgesehen. Durch die Fokussierung auf eine einfache, zuverlassige und leicht zu implementierende Losung beruht die Methode auf der Kombination aus einer Drehmomenterfassungsmethode und einer kontinuierlichen Vorhersage des Schadigungsniveaus der Zahnrader. Zuerst werden der Stand der Technik und die theoretischen Grundlagen von Schadigungsberechnungen basierend auf dem Nennspannungskonzept und einer linearen Schadensakkumulation dargestellt. Danach wird die globale Struktur des Schadigungsberechnungsalgorithmus gezeigt und die fur die Entwicklung ausgewahlte methodische Vorgehensweise erlautert. Diese bezieht sich grundsatzlich auf ein durch Testfahrten und Messungen verifiziertes Antriebsstrangmodell, welches besonders die Schaltungen und die Dynamik des Getriebes berucksichtigt. Ein Serien-Handschaltgetriebe und ein Serien-Doppelkupplungsgetriebe werden betrachtet. Fur diese zwei Getriebetypen werden eine Anforderungsanalyse zur Konfiguration des Algorithmus sowie eine Anforderungsspezifikation fur die Drehmomenterfassungsmethode durchgefuhrt. Auf Basis dieser Untersuchungen wird dann ein Zustandsbeobachter zur Rekonstruktion des Kupplungs- und Getriebeausgangsdrehmoments entwickelt und validiert. Infolgedessen werden eine Synthese der kompletten Methode und die Endversion des Algorithmus vorgestellt. Abschliesend werden die Wirtschaftlichkeit sowie die okologischen Vorteile in Bezug auf die Einfuhrung der Lebensdauermonitoringmethode im Rahmen von Leichtbaumasnahmen diskutiert und bewertet
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Vlček, Hynek. "Vodní paprsek s 3D hlavou." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231986.

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The diploma thesis is focused on waterjet technology, dimensional and shape accuracy of manufactured parts. In the theoretical section, the principle of technlogy and its use in engineering industry at the present time, are described. Moreover, the theoretical section includes discription of every single parts of the machine of waterjet cutting, that are nowadays used. The biggest part of diploma thesis focuses on 3D cutting technology and on attachments for elimination of undercutting. Practical section focuses on dimensional and shape accuracy of manufactured parts manufactured by waterjet technology that makes use of 3D head and different cutting speed. The practical section also includes operating and maintenance cost of the machine. In terms of maintenance, real service life of components is compared there with a lifespan declarated by machine producer.
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Maior, Célio Costa Souto. "Aplicação da análise de sobrevivência na estimativa da vida útil de componentes construtivos." Universidade Católica de Pernambuco, 2009. http://www.unicap.br/tede//tde_busca/arquivo.php?codArquivo=475.

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Este trabalho foi elaborado, na tentativa de se aplicar as técnicas e os conceitos que são empregadas na Análise de Sobrevivência, na medicina e aplicá-los na Engenharia Civil, na área de construção. Essas técnicas recebe o nome de Confiabilidade, onde permite estimar a vida útil de componentes construtivos, através de modelos probabilísticos mais usados nessa área. Esses modelos foram desenvolvidos e aplicados nos dados colhidos, com uma confiabilidade de 95%. Esse assunto, nessa área, já vem sendo estudado na comunidade científica, mas especificamente na área da construção civil pouco se conhece, encontrando-se ainda a fase embrionária, merecendo um estudo mais aprofundado. Logo nossa proposição foi a de a partir de análise feita em uma amostra para estudo, tirar algum proveito ou alguma informação que possa ajudar para trabalhos futuros. Foram coletados 60 amostras para estudo, sendo que 10 delas foram censuradas, onde o estudo terminou com um numero pré-determinado de amostras estudadas. Os resultados foram obtidos através do software R, sendo comparados os modelos Exponencial, Weibull e Log-normal, com o estimador de Kaplan-Meier, mostrando tanto graficamente como através de testes, qual melhor modelo se ajusta aos dados coletados. O modelo que melhor se ajustou foi o Log-normal
This Work was developed as an effort to utilize the techniques and concepts that are employed in Survival Analysis in medicine, in order to apply them in Civil Engineering in the construction area. These techniques is called Reliability, which allows estimating the life time of building components through probabilistic models commonly used in that area. These models were developed and applied to the collected data, with a reliability of 95%. This subject, in this area have been studied in the scientific community, but specifically in the construction area is poorly known and is still in its beginning and, deserves further study. Thus, our proposition was to take some benefit or some information that might help for future work from analysis of a sample to study. 60 samples were collected for study, and 10 of them were censored, so that the study ended with a predetermined number of samples. The results were obtained using the software R and compared the models Exponential, Weibull and Log-normal, with the Kaplan-Meier estimator showing both graphically and through tests, which model best fits the data collected. The model that best fitted was the lognormal
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Papadopoulos, Ioannis. "Predicting the fatigue life of elastomer components." Thesis, Queen Mary, University of London, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.428590.

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Borgström, Kristofer. "Multimedia Messaging Service Components for Web 2.0." Thesis, KTH, Kommunikationssystem, CoS, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-91878.

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The purpose of this master’s thesis is to simplify the exchange (in both directions) of multimedia content between mobile phones and network attached web servers. The solution proposed in this report specifically concerns displaying Multimedia Messaging Service (MMS) messages via a web browser connected to a network-attached web server and graphically authoring MMS messages via a web interface. This thesis project is important because it brings multimedia content, in the form of MMS messages, from isolation in the telecommunication world closer to wide availability via the Internet. This transition is very important as the Internet is where media is shared with the world today. This approach brings added value to end users who want to share content generated using their phone on a web site. It also provides added value to operators who want to increase the amount of MMS traffic in their networks. The solution is non-trivial because there are a number of complexities at both ends. This is because the MMS messages that are authored at mobile phones differ between both handset models and manufacturers. Moreover, the format used for MMS (MMS SMIL) is not widely used on the Internet, thus a transformation to an Internet browser supported format must be performed. The thesis examines to what extent this transformation can be completely automatic and how MMS messages can be authored through a web interface. The results show that MMS messages can be successfully transformed to HTML and embedded directly in web pages, thus providing a seamless experience for viewing MMS messages. Depending on the content of the MMS message in question, the current browser and which media player plug-ins are available, the generated HTML will be displayed differently. The results also show that MMS messages can be composed in real time* through a web interface with good results.
Syftet med detta examensarbete är att förenkla utbyte (i båda riktningarna) av multimedia mellan mobiltelefoner och nätverksuppkopplade webbservrar. Lösningen som föreslås i denna rapport behandlar specifikt hur Multimedia Messaging Service (MMS)-meddelanden kan visas i en webbläsare via nätverksuppkopplade webbservrar och hur MMS-meddelanden kan komponeras grafiskt via ett webbinterface. Detta examensarbete är viktigt eftersom det för multimedia, i form av MMS-meddelanden, från isolering i telekommunikationsvärlden närmare en bred tillgänglighet via Internet. Denna övergång är viktig eftersom det är på Internet som multimedia görs tillgängligt för världen i dagens läge. Denna approach förbättrar upplevelsen för användare som vill dela med sig av innehåll genom sin telefon genom en hemsida. Den ökar också möjligheterna för mobiloperatörer att öka MMS-trafiken i sina nätverk. Lösningen är inte trivial eftersom det existerar ett antal komplexiteter i båda ändarna. Detta beror på att MMS-meddelanden som skapas i mobiltelefoner skiljer sig åt mellan såväl tillverkare som modeller. Dessutom används inte MMS-formatet (MMS SMIL) på Internet. Således måste en transformering till ett format som stöds av webbläsare genomföras. Detta examensarbete undersöker i vilken utsträckning denna transformering kan automatiseras helt och även hur MMS-meddelanden kan skapas via ett webbinterface. Resultaten visar att MMS-meddelanden framgångsrikt kan transformeras till HTML och bäddas in på en hemsida på ett sådant sätt att de upplevs som en del av hemsidan. Beroende på vilken typ av media som MMS-meddelandet innehåller, den aktuella webbläsarkonfigurationen och på vilka mediaspelar-plug-ins som finns tillgängliga, måste olika HTML genereras för att innehållet ska visas på ett bra sätt. Resultaten visar också att MMS-meddelanden kan skapas grafiskt, i realtid, direkt genom ett webbinterface med goda resultat.
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ZARRIN, GHALAMI TOUHID. "Fatigue Life Prediction and Modeling of Elastomeric Components." University of Toledo / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1367411090.

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Books on the topic "Service life of components"

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Ko, William L. Practical theories for service life prediction of critical aerospace structural components. [Washington, DC]: National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Program, 1992.

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Damage mechanisms and life assessment of high-temperature components. Metals Park, Ohio: ASM International, 1989.

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Azizinamini, Atorod, Edward H. Power, Glenn F. Myers, and H. Celik Ozyildirim. Bridges for Service Life Beyond 100 Years: Innovative Systems, Subsystems, and Components. Washington, D.C.: Transportation Research Board, 2014. http://dx.doi.org/10.17226/22479.

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International Conference on Durability of Building Materials and Components (7th 1996 Stockholm, Sweden). Durability of building materials and components: Proceedings of the Seventh International Conference on Durability of Building Materials and Components, 7DBMC : Stockholm, Sweden 19-23 May 1996. London: Spon, 1996.

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International, Conference on Durability of Building Materials and Components (7th 1996 Stockholm Sweden). Durability of building materials and components: Proceedings of the Seventh International Conference on Durability of Building Materials and Components, 7DBMC : Stockholm, Sweden 19-23 May 1996. London: Spon, 1996.

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Ko, William L. Prediction of service life of aircraft structural components using the half-cycle method. Edwards, Calif: National Aeronautics and Space Administration, Ames Research Center, Dryden Flight Research Facility, 1987.

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Singapore), International Conference on Durability of Building Materials and Components (4th 1987. Proceedings of the Fourth International Conference on Durability of Building Materials and Components, Singapore, 4-6 November 1987. Oxford, [England]: Pergamon Press, 1987.

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V, Bicego, Nitta A, Viswanathan Ramaswamy, Comité de Informática do Setor de Energia Elétrica., and Gruppo italiano frattura, eds. Materials ageing and component life extension. Warley: Engineering Materials Advisory Services, 1995.

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1953-, Lacasse Michael A., Vanier D. J, and National Research Council Canada, eds. Durability of building materials and components 8: Service life and asset management : proceedings of the eighth International Conference on Durability of Building Materials and Components, 8dbmc, Vancouver, Canada, May 30-June 3, 1999. Ottawa: NRC Research Press, 1999.

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Pressure Vessels and Piping Conference (1992 New Orleans, La.). Nuclear plant systems/components aging management and life extension: Presented at the 1992 Pressure Vessels and Piping Conference, New Orleans, Louisiana, June 21-25, 1992. New York: American Society of Mechanical Engineers, 1992.

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Book chapters on the topic "Service life of components"

1

Bentur, A., and P. Larianovsky. "Turning Marginal Aggregates into Useful Concrete Components." In Concrete Durability and Service Life Planning, 3–7. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-43332-1_1.

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Endo, T. "Material Degradation and Life-time Prediction of Fossil Power Plant Components." In Advanced Materials for Severe Service Applications, 233–44. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3445-0_15.

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Cavaliere, Pasquale. "Cold Spray Coating Technology for Metallic Components Repairing." In Through-life Engineering Services, 175–84. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-12111-6_11.

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Wang, W., and M. J. Carr. "Component Level Replacements: Estimating Remaining Useful Life." In Complex Engineering Service Systems, 297–314. London: Springer London, 2011. http://dx.doi.org/10.1007/978-0-85729-189-9_16.

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Campion, R. P. "Methodologies for Service Life Predictions of Elastomeric Components in Oilfield Engineering." In Ageing Studies and Lifetime Extension of Materials, 545–51. Boston, MA: Springer US, 2001. http://dx.doi.org/10.1007/978-1-4615-1215-8_61.

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Addepalli, Sri, Yifan Zhao, and Lawrence Tinsley. "Thermographic NDT for Through-Life Inspection of High Value Components." In Advances in Through-life Engineering Services, 189–97. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-49938-3_12.

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Tarawneh, Constantine, Lucas W. Koester, Allen J. Fuller, Brent M. Wilson, and Joseph A. Turner. "Service Life Testing of Components with Defects in the Rolling Contact Fatigue Zone." In Bearing Steel Technologies: 9th Volume, Advances in Rolling Contact Fatigue Strength Testing and Related Substitute Technologies, 67–83. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959: ASTM International, 2012. http://dx.doi.org/10.1520/stp104628.

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Tarawneh, Constantine, Lucas W. Koester, Allen J. Fuller, Brent M. Wilson, and Joseph A. Turner. "Service Life Testing of Components with Defects in the Rolling Contact Fatigue Zone." In Bearing Steel Technologies: 9th Volume, Advances in Rolling Contact Fatigue Strength Testing and Related Substitute Technologies, 1–17. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959: ASTM International, 2012. http://dx.doi.org/10.1520/stp104628t.

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Hu, Niaoqing, Bin Fan, Lei Hu, Zhe Cheng, Lun Zhang, Guoying Zhao, and Fengshou Gu. "A Weak Signal Detection Method Based on Stochastic Resonances and Its Application to the Fault Diagnosis of Critical Mechanical Components." In Through-life Engineering Services, 95–114. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-12111-6_7.

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Gooch, Jan W. "Service Life." In Encyclopedic Dictionary of Polymers, 655. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_10479.

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Conference papers on the topic "Service life of components"

1

Morcous, G., and H. Rivard. "Service Life Prediction of Low-Slope Roofing Components in Buildings." In Architectural Engineering Conference (AEI) 2006. Reston, VA: American Society of Civil Engineers, 2006. http://dx.doi.org/10.1061/40798(190)52.

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Shohet, I. M. "Life cycle assessment of exterior cladding components." In ConcreteLife'06 - International RILEM-JCI Seminar on Concrete Durability and Service Life Planning: Curing, Crack Control, Performance in Harsh Environments. RILEM Publications SARL, 2006. http://dx.doi.org/10.1617/291214390x.034.

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Silva, A., and A. Prieto. "Probabilistic Approach to the Service Life Prediction of Timber Claddings." In XV International Conference on Durability of Building Materials and Components. CIMNE, 2020. http://dx.doi.org/10.23967/dbmc.2020.114.

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Scheibel, John R., and Rajeev Aluru. "Extending Useful Life of F-Class Gas Turbine Components." In ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gt2012-68363.

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This paper addresses the engineering evaluation of F-Class hot section components from an owner/operator perspective, with the practical objective of extending their interval of useful service beyond the limits recommended by the OEM. Starting with the first stage, the initial aim is to extend operation from two to three intervals. A multi-disciplinary approach to hot section life management is described, which is used to assess the component condition and possible risks involved with extending the active service life. The assessment draws from many sources: design analysis (durability, weak points, material and coating limitations), inspection (when, where, limits and tolerances), service (base load, cycling, turbine inlet temperature and hours) and repair techniques (welding, brazing, heat treatments). Results of the modeling, damage tracking, NDT and metallurgical and mechanical testing are summarized.
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Acker, J., X. Jiang, and J. Bulcke. "Innovative Approaches to Increase Service Life of Poplar Lightweight Hardwood Construction Products." In XV International Conference on Durability of Building Materials and Components. CIMNE, 2020. http://dx.doi.org/10.23967/dbmc.2020.086.

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Brandt, E., and M. Morelli. "Methodology for Predicting the Service Life of Two-Ply Roofing-Felt Membrane." In XV International Conference on Durability of Building Materials and Components. CIMNE, 2020. http://dx.doi.org/10.23967/dbmc.2020.096.

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Suresh, H. N., and A. Srividya. "Methodology to estimate remaining service life of piping components against Erosion Corrosion." In 2010 2nd International Conference on Reliability, Safety and Hazard - Risk-Based Technologies and Physics-of-Failure Methods (ICRESH). IEEE, 2010. http://dx.doi.org/10.1109/icresh.2010.5779633.

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Verdiere, Nicolas, Pierre Cambefort, Karim Zamoum, Karl Payraudeau, and Se´bastien Royer. "Life Assessment of Components With Underclad Cracks in PWR." In ASME/JSME 2004 Pressure Vessels and Piping Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/pvp2004-2971.

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During the in-service inspection in 1999 in Tricastin 1 Nuclear Plant, underclad cracks had been discovered in the core shell. Following the specific demonstration of the acceptability of these defects, other components also sensitive to this kind of defects have been re-examined. The life assessment includes a review of the mechanism of formation of theses underclad flaws by cold cracking and the selection of the components sensitive to theses cracks. This includes various shells of the reactor pressure vessel, the steam generator and the pressurizer. A second part consists in mechanical analysis of theses selected components, with an underclad flaw of very large size. This is compared with the maximum size of a realistic crack, which depends of the size of the heat affected zone during the cladding process. The third part has to do with the In Service Inspection. This concerns only the reactor pressure nozzles — both inlet and outlet — which are examined during the inspection of the core shell of the reactor vessel.
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Belie, N., B. Belleghem, S. Keßler, P. Heede, and K. Tittelboom. "Durability Based Service Life Estimation for Chloride Exposed Cracked and Self-Healed Concrete." In XV International Conference on Durability of Building Materials and Components. CIMNE, 2020. http://dx.doi.org/10.23967/dbmc.2020.042.

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Arvanitis, S. T., Y. B. Symko, and R. N. Tadros. "Multiaxial Life Prediction System for Turbine Components." In ASME 1986 International Gas Turbine Conference and Exhibit. American Society of Mechanical Engineers, 1986. http://dx.doi.org/10.1115/86-gt-242.

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The objective of this paper is to present a complete 3–D life prediction system which was developed for turbine engine components. It will primarily deal with turbine blades and vanes which are subjected to hostile thermal and combustion environments under load which creates cyclic and/or steady multiaxial stress and strain fields. All of the above factors combined are detrimental to the service life of these components and need very careful consideration at the design stage. The developed multiaxial system for a mission includes evaluation of transient metal temperatures, corresponding elastic and inelastic strains, creep strains and subsequently creep/fatigue lives. The calculations are performed using the ductility exhaustion method. The maximum principal normal strain ranges used in the life analysis are found by a developed procedure for a multi-axial system. The concept is based on analyzing all of the time steps computed in the mission, in order to develop the maximum principal normal strain range whose direction and magnitude is strictly a function of the component geometry and mission loading. The mission creep is then developed by maximizing a cumulative creep function. Directional consistency is maintained in accumulating creep/fatigue damage with respect to the incurred multiaxial stress and strain fields. Also the most damaging mission modes (creep or fatigue) will be separated. Further development in the model includes the capability of analytically obtaining the fatigue curve for any ratio (R) of minimum to maximum strain using baseline fatigue material properties (R=−1.0). Application of the model to an actual uncooled vane correlates well with test rig development experience.
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Reports on the topic "Service life of components"

1

Clifton, James R., and Lawrence I. Knab. Service life of concrete. Gaithersburg, MD: National Institute of Standards and Technology, 1989. http://dx.doi.org/10.6028/nist.ir.89-4086.

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Fillerup, James, and Robert Pritchard. Service Life Prediction Technology Program. Fort Belvoir, VA: Defense Technical Information Center, March 1998. http://dx.doi.org/10.21236/ada397950.

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Schueneman, Gregory T., Steven J. Lacher, and Christopher G. Hunt. Installing sealants for long service life. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory, 2019. http://dx.doi.org/10.2737/fpl-gtr-267.

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Fretthold, J. K., and A. R. Stithem. Evaluation of HEPA filter service life. Office of Scientific and Technical Information (OSTI), July 1997. http://dx.doi.org/10.2172/519156.

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DeCamp, David S., Joseph Costantino, and Jon E. Black. Estimating Organic Vapor Cartridge Service Life. Fort Belvoir, VA: Defense Technical Information Center, November 2004. http://dx.doi.org/10.21236/ada439710.

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Seacord, Robert, and Lutz Wrage. Replaceable Components and the Service Provider Interface. Fort Belvoir, VA: Defense Technical Information Center, July 2002. http://dx.doi.org/10.21236/ada403867.

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Frohnsdorff, Geoffrey. Modelling service life and life-cycle cost of steel-reinforced concrete:. Gaithersburg, MD: National Institute of Standards and Technology, 1999. http://dx.doi.org/10.6028/nist.ir.6327.

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Liu, C. T. Fracture Mechanics and Service Life Prediction Research. Fort Belvoir, VA: Defense Technical Information Center, September 1999. http://dx.doi.org/10.21236/ada409488.

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Clifton, James R. Predicting the remaining service life of concrete. Gaithersburg, MD: National Institute of Standards and Technology, 1991. http://dx.doi.org/10.6028/nist.ir.4712.

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Clifton, J. F. Predicting the remaining service life of concrete. Office of Scientific and Technical Information (OSTI), November 1991. http://dx.doi.org/10.2172/469656.

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