To see the other types of publications on this topic, follow the link: Service life (Engineering).

Journal articles on the topic 'Service life (Engineering)'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Service life (Engineering).'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

DODERO, JUAN MANUEL, ERNIE GHIGLIONE, and JORGE TORRES. "ENGINEERING THE LIFE-CYCLE OF SEMANTIC SERVICES-ENHANCED LEARNING SYSTEMS." International Journal of Software Engineering and Knowledge Engineering 20, no. 04 (June 2010): 499–519. http://dx.doi.org/10.1142/s0218194010004852.

Full text
Abstract:
Service-oriented learning environments are the new paradigm for interoperability of learning management systems. They support a wider range of needs by integrating existing and emergent services, leading to an entirely new architectural design for such systems. The engineering life-cycle of resources and services can be enhanced and integrated in current and future virtual learning environments. This work defines a services-enhanced learning architecture and describes two levels of integration carried out to author, deploy and enact learning services from open web-based interaction protocols and semantic web service descriptions.
APA, Harvard, Vancouver, ISO, and other styles
2

Camera, Fernanda, John Ahmet Erkoyuncu, and Steve Wilding. "Service Data Quality Management Framework to Enable Through-life Engineering Services." Procedia Manufacturing 49 (2020): 206–10. http://dx.doi.org/10.1016/j.promfg.2020.07.020.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

(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.

Full text
Abstract:
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.
APA, Harvard, Vancouver, ISO, and other styles
4

Harrison, H. W. "Estimating Service Life." Batiment International, Building Research and Practice 13, no. 1 (January 1985): 37–41. http://dx.doi.org/10.1080/09613218508551240.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Masters, Larry W. "Service life prediction." Batiment International, Building Research and Practice 15, no. 1-6 (January 1987): 292–96. http://dx.doi.org/10.1080/09613218708726837.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

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.

Full text
Abstract:
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.
APA, Harvard, Vancouver, ISO, and other styles
7

Masood, Tariq, Johannes Egger, and Maximilian Kern. "Future-proofing the Through-life Engineering Service Systems." Procedia Manufacturing 16 (2018): 179–86. http://dx.doi.org/10.1016/j.promfg.2018.10.162.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

He, Y., C. Li, T. Zhang, J. Liu, C. Gao, B. Hou, and L. Wu. "Service fatigue life and service calendar life limits of aircraft structure: aircraft structural life envelope." Aeronautical Journal 120, no. 1233 (September 19, 2016): 1746–62. http://dx.doi.org/10.1017/aer.2016.93.

Full text
Abstract:
ABSTRACTThe service life of aircraft structure includes the fatigue life and calendar life. The Aircraft Structural Life Envelop (ASLE) is a safe and reliable life scope of aircraft structures in service. The specific steps to establish the ASLE are developed, and a residual life prediction method for aircraft structure under service environments is established by combining the ASLE with the Miner theory. Furthermore, a service life extension method of aircraft structure is proposed based on a scope extension of the ASLE, including methods based on reliability analysis and structural repair. Finally, an application example of the ASLE is presented.
APA, Harvard, Vancouver, ISO, and other styles
9

Zhang, Yufeng, and Lihong Zhang. "Organizing complex engineering operations throughout the lifecycle." Journal of Service Management 25, no. 5 (October 14, 2014): 580–602. http://dx.doi.org/10.1108/josm-07-2013-0182.

Full text
Abstract:
Purpose – Strategic trends towards service operations have been widely reported in the recent literature, but organisational capabilities to support such service-centred strategies are less well understood. The purpose of this paper is to identify key organisational issues in managing complex engineering service operations throughout the lifecycle. Design/methodology/approach – Using instruments developed from the product lifecycle management technologies and the network configuration concept, key organisational issues for engineering service operations were identified through case studies focusing on complex engineering products and services systems across a variety of industrial sectors. Findings – The case studies demonstrated different organisational features and strategic priorities of engineering service operations along the whole lifecycle. A generic trend has been observed for engineering systems to move from being design, development and manufacturing focused to embracing support and end-of-life recycling matters. Originality/value – This paper provides an overall framework for integrating key organisational issues in engineering service operations. It contributes to the service literature by highlighting the need of developing appropriate organisational capabilities to support service-centred strategies with engineering cases. It also provides guidance for companies to manage their engineering network operations throughout the whole lifecycle of complex products and services systems.
APA, Harvard, Vancouver, ISO, and other styles
10

Aljawarneh, Shadi. "Cloud Security Engineering." International Journal of Cloud Applications and Computing 1, no. 2 (April 2011): 64–70. http://dx.doi.org/10.4018/ijcac.2011040105.

Full text
Abstract:
Information security is a key challenge in the Cloud because the data will be virtualized across different host machines, hosted on the Web. Cloud provides a channel to the service or platform in which it operates. However, the owners of data will be worried because their data and software are not under their control. In addition, the data owner may not recognize where data is geographically located at any particular time. So there is still a question mark over how data will be more secure if the owner does not control its data and software. Indeed, due to shortage of control over the Cloud infrastructure, use of ad-hoc security tools is not sufficient to protect the data in the Cloud; this paper discusses this security. Furthermore, a vision and strategy is proposed to mitigate or avoid the security threats in the Cloud. This broad vision is based on software engineering principles to secure the Cloud applications and services. In this vision, security is built into all phases of Service Development Life Cycle (SDLC), Platform Development Life Cycle (PDLC) or Infrastructure Development Life Cycle (IDLC).
APA, Harvard, Vancouver, ISO, and other styles
11

Zhong, Xiao Ping, Wei Liang Jin, and Wen Xue. "Life-Time Index in Whole Structural Life-Cycle." Advanced Materials Research 243-249 (May 2011): 5711–16. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.5711.

Full text
Abstract:
In the analysis on whole structural life-cycle, there are two important factors to need to be considered. One is the determination of design service life of structure, and another is design of structure based on service life. After analyzing deeply the influence factors of life-time index, it can be found that the design service life of structure not only depends on technology level, functional requirement and economic cost factors of structures, but also relate with the specific environmental conditions, using conditions and maintenance conditions of structures. So that, an analysis method of determined design service life of structure is given in this paper. For design of structure on service life, from the view of whole structural life-cycle, a probability reliability-based analysis method of structural service life design and re-design is proposed in this paper. By updating constantly design parameters, the correctness of predicted service life is improved gradually.
APA, Harvard, Vancouver, ISO, and other styles
12

ECCLES, THOMAS J., GLENN ASHE, and SAM ALBRECHT. "The Achieving Service Life Program." Naval Engineers Journal 122, no. 3 (September 2010): 103–12. http://dx.doi.org/10.1111/j.1559-3584.2010.00275.x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
13

Pommersheim, J., and J. Clifton. "Prediction of concrete service-life." Materials and Structures 18, no. 1 (January 1985): 21–30. http://dx.doi.org/10.1007/bf02473361.

Full text
APA, Harvard, Vancouver, ISO, and other styles
14

UMEDA, Yasushi. "1304 On Intersection between Life Cycle Design and Service Engineering." Proceedings of Design & Systems Conference 2006.16 (2006): 75–77. http://dx.doi.org/10.1299/jsmedsd.2006.16.75.

Full text
APA, Harvard, Vancouver, ISO, and other styles
15

F. V. YATSKO. "PRACTICAL ENGINEERING METODOLOGY RESOURCE ASSESSMENT CONCRETE BRIDGE ELEMENTS IN THE DESIGN PROCESS." Bridges and tunnels: Theory, Research, Practice, no. 6 (September 28, 2014): 138–46. http://dx.doi.org/10.15802/bttrp2014/41598.

Full text
Abstract:
Purpose. Scientific research of life cycle prediction model of road bridges. Methodology. Theoretical study. Findings. The principal possibility of using the lifetime prediction model for reinforced concrete elements whendesigning for the specified service life. Originality. The lifetime prediction model for reinforced concrete elements for the specified service life at all stages of the life cycle, starting from the design is proposed. Practical value. A practical engineering service life evaluation technique for reinforced concrete bridge elements in the design process.
APA, Harvard, Vancouver, ISO, and other styles
16

Savoiskii, V. N., A. A. Sachko, and V. A. Bakhmat. "Seal with extended service life." Chemical and Petroleum Engineering 21, no. 4 (April 1985): 179–80. http://dx.doi.org/10.1007/bf01148102.

Full text
APA, Harvard, Vancouver, ISO, and other styles
17

Wei, Robert P., and D. Gary Harlow. "Materials Considerations in Service Life Prediction." Applied Mechanics Reviews 46, no. 5 (May 1, 1993): 190–93. http://dx.doi.org/10.1115/1.3120335.

Full text
Abstract:
To address the issues of aging of energy production and distribution systems, and those associated with durability and reliability of new systems, improvements in the methods for service life prediction are needed to adequately account for the contributions of material and environmental variables. A mechanistically based probability approach is proposed. The efficacy of this approach and the importance of materials considerations are discussed. Support of research, utilizing this approach to address specific failure mechanisms, is recommended.
APA, Harvard, Vancouver, ISO, and other styles
18

Ndua, Esther Wambui, and Rosemary Wanyoike. "Work-Life Balance and Service Delivery." Human Resource and Leadership Journal 9, no. 1 (January 19, 2024): 77–84. http://dx.doi.org/10.47941/hrlj.1634.

Full text
Abstract:
Purpose: Police officers in Kenya face a wide array of stressors in the line of duty, including exposure to high levels of crime, violence, and the ever-present threat of traumatic incidents. Inadequate resources, long working hours, and the burden of meeting performance targets further contribute to elevated stress levels among officers. This study aimed to determine the effect of Work-Life Balance on service delivery at National Police Service in Nairobi City County, Kenya. The study was grounded based on Servqual model. Methodology: The study adopted desk review of empirical literature. Target population was National police officers working in Nairobi City County. The findings were derived from reviewed empirical literature. Results: The findings show that Work-Life Balance impacted the service delivery. The inspector general of police should work closely with inspectors for regularly assess the workload. Unique contribution to theory, practice and policy: The inspectors should conduct regular assessments of workload and staffing levels to ensure they are balanced and manageable.
APA, Harvard, Vancouver, ISO, and other styles
19

Pangborn, R. N., C. E. Bakis, and A. E. Holt. "NDE Engineering in the Materials Life Cycle." Journal of Pressure Vessel Technology 113, no. 2 (May 1, 1991): 163–69. http://dx.doi.org/10.1115/1.2928742.

Full text
Abstract:
The emergence of nondestructive evaluation as a factor to be considered in the entire life cycle of materials, from design, through fabrication of components and structures, to in-service monitoring, is reviewed. Current directions in research and development and in practical application are discussed within the context of NDE as an engineering function. Particular emphasis is directed towards reliability, requirements for in-process and health monitoring, and implementation for the inspection and analysis of composite materials, that offer a particularly challenging domain in which to demonstrate the performance of NDE techniques and procedures.
APA, Harvard, Vancouver, ISO, and other styles
20

Petrushin, S. I., R. H. Gubaidulina, and S. V. Gruby. "Optimization of Products Life Cycle." Applied Mechanics and Materials 770 (June 2015): 662–69. http://dx.doi.org/10.4028/www.scientific.net/amm.770.662.

Full text
Abstract:
The issue of optimal products life cycle organization is considered on the example of mechanical engineering industry and is based on the principle of economically substantiated product lifetime. The concepts are developed, as well as methods are suggested to optimize the phases of service, engineering design, manufacture and disposal of machines.
APA, Harvard, Vancouver, ISO, and other styles
21

Yan, Chu Liang, and K. G. Liu. "Fatigue Scatter Factor of Whole Life and Reliability of Aircraft Structure Service Life." Advanced Materials Research 44-46 (June 2008): 739–44. http://dx.doi.org/10.4028/www.scientific.net/amr.44-46.739.

Full text
Abstract:
The prediction of aircraft structure service life is of great importance to safety of aircraft structure and human beings. The relation between aircraft structure service life and reliability can be found by utilizing the fatigue scatter factor of whole life. Only when the service life satisfies the requirements of reliability, can the safety of airplane be ensured. The fatigue scatter factors of the service life accords with lognormal distribution and Weibull distribution were studied to provide important reference for predicting the safe service life of aircraft structure.
APA, Harvard, Vancouver, ISO, and other styles
22

Partl, Manfred N. "Quest for improving service life of asphalt roads." RILEM Technical Letters 4 (April 23, 2020): 154–62. http://dx.doi.org/10.21809/rilemtechlett.2019.102.

Full text
Abstract:
Selected results and initiatives in modern asphalt pavement research for increasing service life of asphalt pavements under the aspect of sustainability and multifunctional use of roads are summarized. Focus lies on innovative approaches and own experience, jointly elaborated during the last decades within the road engineering/sealing components lab at Empa and both the highway/railways engineering and building materials group at KTH. This includes material concepts and design as well as pavement system and construction aspects from an experimental and modelling point of view. It includes also the application of powerful experimental and computational tools, such as Atomic-Force-Microscopy (AFM), X-Ray-Computer-Tomography (CT), Digital-Imaging-Correlation (DIC) and Discrete-Element-Method (DEM). As for materials, recycling issues and the use of Phase-Change-Materials (PCM) or metallic ingredients for inductive thermal crack healing are addressed. In order to remind that material design must also account for the workability during the process of compaction, the new Compaction-Flow-Test (CFT) developed at KTH is shortly presented. Innovative ideas for structural material composition are also mentioned, such as “artificial aggregates” or “additive manufacturing”, being aware that there is still a long way to go. Regarding pavement systems, ideas for multifunctional road applications are proposed. Focus is also put on special issues, such as construction joints.
APA, Harvard, Vancouver, ISO, and other styles
23

Zaichenko, Yu A., A. Yu Mamykina, and A. N. Ferapontov. "Increasing the service life of railway engineering components by induction surfacing." Welding International 28, no. 3 (July 15, 2013): 248–50. http://dx.doi.org/10.1080/09507116.2013.796677.

Full text
APA, Harvard, Vancouver, ISO, and other styles
24

Masood, Tariq, Rajkumar Roy, Andrew Harrison, Yuchun Xu, Stephen Gregson, and Carl Reeve. "Integrating through-life engineering service knowledge with product design and manufacture." International Journal of Computer Integrated Manufacturing 28, no. 1 (April 29, 2014): 59–74. http://dx.doi.org/10.1080/0951192x.2014.900858.

Full text
APA, Harvard, Vancouver, ISO, and other styles
25

Prager, Martin. "The Omega Method–An Engineering Approach to Life Assessment." Journal of Pressure Vessel Technology 122, no. 3 (May 17, 2000): 273–80. http://dx.doi.org/10.1115/1.556184.

Full text
Abstract:
Many petroleum companies have been using a tool developed by MPC for evaluating materials operating in the creep range. This method has now been recognized for inclusion in API RP579 on fitness-for-service. This paper reports on the method and explains the materials properties used therein. The MPC Omega method concentrates on the application of estimates of performance of materials at low design level stresses. The database upon which the materials properties are based was acquired by testing service exposed and softened steels and minimizing environmental effects. Use of the MPC properties in some cases could increase allowable stresses. However, the great advantage of the method is its capability as a tool for predicting strains, benchmarking materials, incorporation into finite element analysis, developing sensible testing strategies, and dealing with realistic stress situations. [S0094-9930(00)02903-6]
APA, Harvard, Vancouver, ISO, and other styles
26

Nikitenko, A. F., and I. V. Lyubashevskaya. "Service life of pressurized vessels." Journal of Applied Mechanics and Technical Physics 48, no. 5 (September 2007): 766–73. http://dx.doi.org/10.1007/s10808-007-0099-3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
27

Lu, Guo Hua, Bei Bei Zhang, and Hu Cheng. "Studying on Chinese Engineering Design Service Modes." Applied Mechanics and Materials 501-504 (January 2014): 2632–37. http://dx.doi.org/10.4028/www.scientific.net/amm.501-504.2632.

Full text
Abstract:
Based on analyzing the characteristics of engineering design enterprises, through investigating 30 Chinese design enterprises ,the present main engineering design service modes are summarized and analyzed, furthermore the backward management philosophy, lack of the efficient information feed back mechanism ,and no enough attention to the accumulation of knowledge are uncovered as the root causes of low innovation ability, the design defects, and extensive management in Chinese design enterprises. Under the great changes taking place in modern market environment, the Chinese engineering design enterprises are required to transform for complying with market demands and the world trend, so the life cycle design service mode is put up with the development strategies for the development of the engineering enterprises.
APA, Harvard, Vancouver, ISO, and other styles
28

Lemer, Andrew C. "Infrastructure Obsolescence and Design Service Life." Journal of Infrastructure Systems 2, no. 4 (December 1996): 153–61. http://dx.doi.org/10.1061/(asce)1076-0342(1996)2:4(153).

Full text
APA, Harvard, Vancouver, ISO, and other styles
29

Zharov, Vasily, and Nikolai Komarov. "Concept of the service-digital approach to the management of engineering systems of buildings." E3S Web of Conferences 263 (2021): 04018. http://dx.doi.org/10.1051/e3sconf/202126304018.

Full text
Abstract:
The problem being reviewed in this article is quite complex and represents a combination of economic, technical, organizational, managerial relations in the management of the engineering systems of the real estate objects that arise in the process of forming a new technological paradigm in the context of growth of the digital economy. The article demonstrates that service activities cover a significant area of social relations associated with development, production and provisions of various types of services including the field of real estate. The study focuses on life cycle contracts for energy supply and it is shown that they are an integral part of the engineering systems management processes. The thesis is given that the service becomes an integral part of the good and the good becomes an integral part of the service. It is demonstrated that operation of the real estate objects including various intelligent buildings consists of various types of services which in one form or another are services by their nature – the services for maintaining the object in operative condition, the services for supplying the object with various resources, the services for maintaining the engineering systems of the object etc. It is shown the relationship between the processes of the real estate objects management and the processes related to the services actives. It is proposed to use the approaches of the systems engineering and the complex engineering in order to solve the tasks related to the management of the engineering systems.
APA, Harvard, Vancouver, ISO, and other styles
30

Atkinson, Simon. "Protecting bearings and extending their service life." Sealing Technology 2003, no. 1 (January 2003): 7–8. http://dx.doi.org/10.1016/s1350-4789(03)01018-3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
31

Kim, Young Kyu, and Seung Woo Lee. "Service life of bonded concrete overlay." Proceedings of the Institution of Civil Engineers - Transport 168, no. 3 (June 2015): 267–75. http://dx.doi.org/10.1680/tran.12.00081.

Full text
APA, Harvard, Vancouver, ISO, and other styles
32

KATAOKA, Hiroo, Noritsugi ABE, and Osamu WAKATSUKI. "Evaluation of Service Life of Jointed Rails." Quarterly Report of RTRI 43, no. 3 (2002): 101–6. http://dx.doi.org/10.2219/rtriqr.43.101.

Full text
APA, Harvard, Vancouver, ISO, and other styles
33

Wu, Hai Jun, Yu Qiang Kang, and Ping Lu. "Service Life of European and American Bridges." Advanced Materials Research 255-260 (May 2011): 916–20. http://dx.doi.org/10.4028/www.scientific.net/amr.255-260.916.

Full text
Abstract:
The short service life of bridges exerts a negative influence on the operation. The service life of European and American bridges and maintenance is illustrated in this paper. A lot experience has been accumulated which also provide enough data to understand the problem. Some examples are listed in the paper. These data and analysis are of important reference value to understand the bridges in service and the actual service life at present in China.
APA, Harvard, Vancouver, ISO, and other styles
34

Klementich, Erich F., and Michael J. Jellison. "A Service-Life Model for Casing Strings." SPE Drilling Engineering 1, no. 02 (April 1, 1986): 141–52. http://dx.doi.org/10.2118/12361-pa.

Full text
APA, Harvard, Vancouver, ISO, and other styles
35

AYYUB, BILAL M., GREGORY J. WHITE, and EDWARD S. PURCELL. "Estimation of Structural Service Life of Ships." Naval Engineers Journal 101, no. 3 (May 1989): 156–66. http://dx.doi.org/10.1111/j.1559-3584.1989.tb02196.x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
36

KOENIG, PHILIP, DON NALCHAJIAN, and JOHN HOOTMAN. "Ship Service Life and Naval Force Structure." Naval Engineers Journal 121, no. 1 (March 2009): 69–77. http://dx.doi.org/10.1111/j.1559-3584.2009.01141.x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
37

Bolotov, A. N., V. V. Novikov, and O. O. Novikova. "Service Life of Magnetic Liquid Vacuum Tribounits." Procedia Engineering 150 (2016): 468–74. http://dx.doi.org/10.1016/j.proeng.2016.07.018.

Full text
APA, Harvard, Vancouver, ISO, and other styles
38

Needham, A. D., J. W. N. Smith, and E. M. G. Gallagher. "The service life of polyethylene geomembrane barriers." Engineering Geology 85, no. 1-2 (May 2006): 82–90. http://dx.doi.org/10.1016/j.enggeo.2005.09.030.

Full text
APA, Harvard, Vancouver, ISO, and other styles
39

Al-Warmizyari, Husam Ahmed. "Estimation the Remaining Life for Reformer Unit Tubes Furnace Operated Beyond the Design Life." Journal of Petroleum Research and Studies 13, no. 3 (September 10, 2023): 112–25. http://dx.doi.org/10.52716/jprs.v13i3.708.

Full text
Abstract:
The aim of this work is to study and model creep damage accumulation for remaining safe working life estimation of tube material used in petroleum industry plants operated at a high temperature for long time beyond the design life. Material constants and other data required for life estimation were extracted from the output results of real accelerated creep rupture tests conducted at three test temperatures (700, 725, and 750(oC and at three constant stress applications (120, 130, and 140 MPa). Also, a time-temperature parameter method (Larson-Miller Method) was modified to be applied based on the results of the accelerated creep rupture tests to build life predicted master curve for austenitic stainless steel type 321H. It is found that creep rupture time for stainless steel alloy decreases as temperature or stress increase. Also, it distinguished from the creep curves for the serviced stainless steel alloy, that the onset of tertiary creep stage starts early (about 50% of creep curve), this reflects the reduction in creep strength of the alloy as a result of the degradation in alloy properties that take place during the service life. It is also found that the estimated remaining working life for the serviced tube samples made from austenitic stainless steel type 321H is about (54703 hr) based on the calculated stress level (40 MPa) and service temperature 570 oC. The difference between the estimated remaining life and the experimental creep test life is due to the differences between the applied stresses, where higher level of stresses in the experimental creep testes are used to accelerate failure of specimens. The application for the result of this work can be the petroleum industries that where heaters tubes serviced at such industry need to be estimated for the remaining life after the design life expire.
APA, Harvard, Vancouver, ISO, and other styles
40

Chen, Jian Zhong, and Si Rong Zhu. "Simplified Design Method of GRP Pipes in Different Design Service Life." Advanced Materials Research 1042 (October 2014): 15–18. http://dx.doi.org/10.4028/www.scientific.net/amr.1042.15.

Full text
Abstract:
In practical engineering design service life of glass fiber reinforced plastics (GRP) pipes have different requirements. The current specification for different engineering structure design life design only considers the change of variable load. The material properties of GRP pipes can be varied with the service life, which must be considered in the design. Through the analysis of the existing standard design method and principle, the double logarithmic linear extrapolation further promotion, and combine the reduction coefficient method, a simplified design method for GRP pipes of different design service life, which has strong reference significance and application value.
APA, Harvard, Vancouver, ISO, and other styles
41

L. Schultheiß, Annika, Ravi A. Patel, and Frank Dehn. "Probabilistic service life prediction of cracked concrete using numerical and engineering models." ce/papers 6, no. 6 (December 2023): 1524–33. http://dx.doi.org/10.1002/cepa.2958.

Full text
Abstract:
AbstractChloride ingress induced depassivation of reinforcing steel leading to corrosion is a major durability concern for concrete structures. The influence of the presence of cracks commonly occurring in concrete structures on chloride ingress should be accounted to improve the accuracy of service life predictions. This study investigates the depassivation probability of the reinforcement in both cracked and uncracked concrete using both analytical and 1D numerical models. The probabilistic service life prediction is realized using the Monte Carlo simulation to incorporate the uncertainty and variability in the input variables. For uncracked concrete the result of the numerical model agreed well with the fib chloride model. For cracked concrete, the numerical simulation suggests that the optimal engineering approach to account for cracks in a service life analysis is the adaptation of crack depth. Although, the approach could lead to an overestimation of chloride concentration because the 1D numerical simulation did not consider lateral diffusion in cracked concrete.
APA, Harvard, Vancouver, ISO, and other styles
42

Nosov, V. V. "Appraising the Service Life of Dangerous Engineering Equipment by Acoustic Emission Diagnosis." Journal of Machinery Manufacture and Reliability 49, no. 12 (December 2020): 1072–83. http://dx.doi.org/10.3103/s1052618820120110.

Full text
APA, Harvard, Vancouver, ISO, and other styles
43

Ryasnyy, S. I. "Managing the equipment service life in rendering engineering support to NPP operation." Thermal Engineering 62, no. 5 (April 16, 2015): 347–51. http://dx.doi.org/10.1134/s0040601515050109.

Full text
APA, Harvard, Vancouver, ISO, and other styles
44

Wiesner, Stefan, Ingo Westphal, and Klaus-Dieter Thoben. "Through-life Engineering in Product-service Systems – Tussles for Design and Implementation." Procedia CIRP 59 (2017): 227–32. http://dx.doi.org/10.1016/j.procir.2016.09.006.

Full text
APA, Harvard, Vancouver, ISO, and other styles
45

Su, Huaizhi, Jiang Hu, Men Yang, and Zhiping Wen. "Assessment and prediction for service life of water resources and hydropower engineering." Natural Hazards 75, no. 3 (September 25, 2014): 3005–19. http://dx.doi.org/10.1007/s11069-014-1445-4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
46

Trinius, Wolfram, and Christer Sjöström. "Service life planning and performance requirements." Building Research & Information 33, no. 2 (March 2005): 173–81. http://dx.doi.org/10.1080/0961321042000323806.

Full text
APA, Harvard, Vancouver, ISO, and other styles
47

Dubrovskii, I. A., and E. V. Pervova. "Service Life of Domestic Implanted Pacemakers." Biomedical Engineering 43, no. 3 (May 2009): 128–30. http://dx.doi.org/10.1007/s10527-009-9108-6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
48

Guo, Feng Qi, and Zhi Wu Yu. "Remaining Service Life Prediction of Reinforced Stone Arch Bridge." Applied Mechanics and Materials 90-93 (September 2011): 1127–31. http://dx.doi.org/10.4028/www.scientific.net/amm.90-93.1127.

Full text
Abstract:
The remaining service life of reinforced stone arch bridges is of great concern to management and conservation units. It is also the scientific basis for decision to next reinforced maintenance or rebuild. The concept of time-dependent reliability is introduced. Accoding to the most common section enlargement reinforcement method, the load and resistance of the structures are analyzed. The analysis methods and steps of life prediction are proposed, and the remaining service life is obtained. Based on above methods, an engineering example is given, the service life forecast calculation of reinforced stone arch bridges is discussed.
APA, Harvard, Vancouver, ISO, and other styles
49

Dolotov, B. I., V. I. Murav'ev, B. I. Mar'in, and Yu L. Ivanov. "Tungsten electrodes with long service life." Welding International 11, no. 4 (January 1997): 308–11. http://dx.doi.org/10.1080/09507119709451971.

Full text
APA, Harvard, Vancouver, ISO, and other styles
50

Silva, Ana. "Assessment, Diagnosis and Service Life Prediction." Buildings 12, no. 11 (November 17, 2022): 2005. http://dx.doi.org/10.3390/buildings12112005.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography