Gotowe bibliografie tematyczne / ELEMENT RELIABILITY

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Gotowa bibliografia na temat „ELEMENT RELIABILITY”

Autor: Grafiati

Data publikacji: 11 września 2023

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Artykuły w czasopismach na temat "ELEMENT RELIABILITY"

Koduru, Smitha D., i Terje Haukaas. "Uncertain reliability index in finite element reliability analysis". International Journal of Reliability and Safety 1, nr 1/2 (2006): 77. http://dx.doi.org/10.1504/ijrs.2006.010691.

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Sharifi, Mani, Ehsan Hashemi i Peyman Farahpour. "Real Time Reliability Study of a Model with Increasing Failure Rates". Applied Mechanics and Materials 110-116 (październik 2011): 2774–79. http://dx.doi.org/10.4028/www.scientific.net/amm.110-116.2774.

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This paper deals with a system with elements with one element is the main element and the other elements are the spare parts of the main element. If one element fails, one of the spare parts starts working immediately. The failure rate of non working elements are zero and the failure rate of working element is time dependent as and the failed elements are not repairable. The system works until all elements failed. In the second part of this paper the differential equations between the state of the system are established and by solving this equation the reliability function of the system () is calculated. In the third part, a numerical example solved to determine the parameters of the system. Nomenclature The notations used in this paper are as follows: : Number of elements, : Failure rate of each element at time, : Probability that the system is in state with spare element at time, : Probability that system works at time, : Mean time to failure of the system,

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Chen, Gang, i Xu Chen. "Finite element analysis of fleXBGA reliability". Soldering & Surface Mount Technology 18, nr 2 (kwiecień 2006): 46–53. http://dx.doi.org/10.1108/09540910610665134.

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Der Kiureghian, Armen, i Yan Zhang. "Space-variant finite element reliability analysis". Computer Methods in Applied Mechanics and Engineering 168, nr 1-4 (styczeń 1999): 173–83. http://dx.doi.org/10.1016/s0045-7825(98)00139-x.

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Szabó, B. A. "On reliability in finite element computations". Computers & Structures 39, nr 6 (styczeń 1991): 729–34. http://dx.doi.org/10.1016/0045-7949(91)90216-9.

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MacNeal, Richard H. "The reliability of finite element tools". Finite Elements in Analysis and Design 2, nr 3 (październik 1986): 249–57. http://dx.doi.org/10.1016/0168-874x(86)90029-6.

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Sudret, Bruno, i Armen Der Kiureghian. "Comparison of finite element reliability methods". Probabilistic Engineering Mechanics 17, nr 4 (październik 2002): 337–48. http://dx.doi.org/10.1016/s0266-8920(02)00031-0.

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Followell, David, Salvatore Liguore, Rigo Perez, W. Yates i William Bocchi. "Computer-Aided Reliability Finite Element Methods". Journal of the IEST 34, nr 5 (1.09.1991): 46–52. http://dx.doi.org/10.17764/jiet.2.34.5.9720337614871186.

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Finite element analyses (FEA) have emerged as a process for assessing stresses and strains in electronic equipment in order to compute the expected structural life. However, potential pitfalls may compromise accuracy. Guidelines have been established to improve the accuracy of these results. A method has been outlined that allows simplified linear FEAs to be used instead of the more complex elastic-plastic nonlinear FEA. Guidelines for mesh generation have been established to eliminate arithmetic errors caused when materials with large stiffness differences are adjacent to each other. The accuracy of FEAs when dealing with very small dimensions has been verified. Procedures for combining various loadings in order to predict life have been established for materials that exhibit stress relaxation and for those that do not. With these guidelines, FEAs can be an effective tool to predict the structural life of electronic equipment.

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Volkov, Vladimir S. "Improving the reliability of transport vehicles based on element-by-element analysis". Nexo Revista Científica 34, nr 01 (15.04.2021): 514–33. http://dx.doi.org/10.5377/nexo.v34i01.11328.

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The author considers two approaches to solving the problem of increasing the reliability of machine-building products: on the spot, at the enterprises that operate transport vehicles, via certain modifications of serial products, and at manufacturing sites, during production of subsequent products, via improving the design on the basis of operation data of the analogues. In this case, data collection and processing system should provide reliable data on failures and cases of non-serviceable condition of the machines operating under different conditions; prompt processing of statistical data and presentation of results in the most convenient form; registration and coordination of reliability improvement measures taken by developers, manufacturers and operators. The author analyzes the operation of distribution laws of random variables and the variety of their corresponding calculation systems for the determination of the product's reliability indices in an element-by-element, unit-wise, as well as synthesized form. This approach makes it possible to search for the least reliable elements of a system in order to align the machine's reliability indices. Purpose. Creation of a design system for determining reliability indices in a separate form at the levels of parts, units and for the machine as a whole for identifying its least reliable components for the purpose of their further improvement. Methods. The methodology is based on drawing up a structural chart of machine reliability and a consolidated list of failures that are identified during its operation. The reliability structural scheme includes all the machine elements. A summary cumulative list is compiled further, where data on the operating time of each object are recorded for each failure type. The data samples on the times to failure of a group of homogeneous components are output from the summary cumulative list per each element. Results. The methodology makes it possible to create a system with multiple ratios of reliability indices per components, as well as reduce expenses for service impacts and improve the effectiveness of their transportation work. The present research work contributes to the theory of predicting the reliability of mechanical systems, making it possible to solve important tasks at modernization and design stages.

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Gong, Zheng Xi, i Jian Guo Yang. "Fuzzy Matter-Element Evaluation Method for Reliability Analysis of an Existing Highway Tunnel". Advanced Materials Research 163-167 (grudzień 2010): 3110–13. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.3110.

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Reliability analysis is the premise for reinforcement and maintenance of an existing highway tunnel. In order to understand the structure reliability of an existing highway tunnel, a fuzzy mat-ter-element evaluation method was put forward based on entropy weight according to the fuzzy matter-element analysis method. Firstly, levels of inspection results were regarded as objects of matter-element and composite fuzzy matter-elements were constructed considering such factors and their evaluation indexes as cracks of concrete lining, lining thickness, concrete strength, cavities behind the lining and water leakage conditions. Secondly, reliability evaluation results of the existing tunnel structure were obtained by calculating the relevancy. Lastly, fuzzy matter-element evaluation model was effectively used to evaluate reliability of one highway tunnel structure.

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Rozprawy doktorskie na temat "ELEMENT RELIABILITY"

Rice, Christopher W. "Quantitative structural reliability assurance through finite element analysis". Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1998. http://handle.dtic.mil/100.2/ADA355906.

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Thesis (Degreee of Aeronautical and Astronautical Engineering) Naval Postgraduate School, September 1998.
Thesis advisor(s): Edward M. Wu. "September 1998." Includes bibliographical references (p. 53). Also available online.

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Mahadevan, Sankaran. "Stochastic finite element-based structural reliability analysis and optimization". Diss., Georgia Institute of Technology, 1988. http://hdl.handle.net/1853/19517.

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Koka, Exaud Noe. "Laterally loaded wood compression members : finite element and reliability analysis". Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/26709.

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This thesis consists of two parts. The first part describes the analysis and implementation of a finite element computer model for the general prediction of failure of wood members in bending or in combined bending and axial compression. Both instability and material strength failures are included. The program is verified using available analytical and test results. A good agreement with the results predicted by this program is observed. The second part describes a procedure for the structural reliability evaluation of a compression member assuming random loads and material variables. The program developed here for the reliability study links the finite element program and the Rackwitz-Fiessler algorithm for the calculation of the reliability index β. The gradient of the failure function, which is a necessary input to the Rackwitz-Fiessler algorithm, is computed numerically using the finite element routine. The results of the reliability study for a typical column problem are compared against the available results obtained by following the code procedures [as outlined in CAN3-086.1-M84 (1984)] for different slenderness ratios. A performance factor ɸ⍴ = 0.75, for compression members of any length is recommended in order to obtain a more accurate and consistent level of reliability in the design process. It is estimated that if this factor ɸ⍴ = 0.75 adopted in the current design practices, a level reliability index of the order of 4.0 can be achieved.
Applied Science, Faculty of
Civil Engineering, Department of
Graduate

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Chodavarapu, Sandeep. "FINITE ELEMENT ANALYSIS AND RELIABILITY STUDY OF MULTI-PIECE RIMS". UKnowledge, 2004. http://uknowledge.uky.edu/gradschool_theses/329.

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Multi-piece wheels or rims used on large vehicles such as trucks, tractors, trailers, buses and off-road machines have often been known for their dangerous properties because of the large number of catastrophic accidents involving them. The main causes for these accidents range from dislocation of the rim components in the assembly, mismatch of the components, manufacturing tolerances, corrosion of components to tires. A finite element analysis of a two-piece rim design similar to one manufactured by some of the prominent rim manufacturers in the USA is undertaken. A linear static deformation analysis is performed with the appropriate loading and boundary conditions. The dislocation of the side ring with respect to the rim base and its original designer intent position is established using simulation results from ANSYS and actual rim failure cases. Reliability of the multi-piece rims is analyzed using the failure data provided by the rim manufacturers in connection with a lawsuit (Civil Action No. 88-C-1374). The data was analyzed using MINITAB. The effect of an OSHA standard (1910.177) on servicing multi-piece rims was studied for change in failure patterns of different rims. The hazard functions were plotted and failure rates were calculated for each type of rim. The failure rates were found to be increasing suggesting that the standard had minimal effect on the accidents and failures. The lack of proper service personnel training and design defects were suggested as the probable reasons for the increasing failure rates.

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Umetani, S. "Reliability and efficiency of the boundary element method in elastostatics". Thesis, University of Southampton, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.375680.

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Huh, Jungwon. "Dynamic reliability analysis for nonlinear structures using stochastic finite element method". Diss., The University of Arizona, 1999. http://hdl.handle.net/10150/289087.

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An efficient and accurate algorithm is developed to evaluate reliability in the time domain for nonlinear structures subjected to short duration dynamic loadings, including earthquake loading. The algorithm is based on the nonlinear stochastic finite element method (SFEM). Uncertainties in the dynamic and seismic excitation, and resistance-related parameters are incorporated by modeling them as realistically as possible. The uncertainty in them is explicitly addressed. The proposed algorithm intelligently integrates the concepts of response surface method (RSM), finite element method (FEM), first-order reliability method (FORM), and an iterative linear interpolation scheme. This leads to the stochastic finite element concept. It has the potential to estimate the risk associated with any linear or nonlinear structure that can be represented by a finite element algorithm subjected to seismic loading or any short duration dynamic loadings. In the context of the finite element method, the assumed stress-based finite element algorithm is used to increase its efficiency. Two iterative response surface schemes consisting of second order polynomials (with and without cross terms) are proposed. A mixture of saturated and central composite designs is used to assure both efficiency and accuracy of the algorithm. Sensitivity analysis is used to improve the efficiency further. The unique feature of the algorithm is that it is capable of calculating risk using both serviceability and strength limit states and actual earthquake loading time histories can be used to excite structures, enabling a realistic representation of the loading condition. The uncertainty in the amplitude of the earthquake is successfully considered in the context of RSM. Uncertainty in the frequency content of an earthquake is considered indirectly by conducting a parametric study to quantify the effect of uncertainty in the frequency content of earthquakes on the overall reliability of structures. The algorithm has been extensively verified using the Monte Carlo simulation technique. The verified algorithm is used to study the reliability of structures excited by actual earthquake time histories. The results of the numerical examples show that the proposed algorithm can be used accurately and efficiently to estimate the risk for nonlinear structures subjected to short duration time-variant loadings including seismic loading.

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Yunusa, Valeri Aisha. "Reliability of Soldier Joints in Embedded Packages Using Finite Element Method". Thesis, Portland State University, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10843775.

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Some of the causes of solder joint failures are due to the following: Vibration: small rapid displacements of parts of the assembly. This is not necessarily an issue with electronic components but larger parts like automobiles.

Humidity: the package being exposed to water or ionic species can undergo corrosion if an electrical bias exists resulting in electrical opens or electrical shorts if the corrosion products are electrically conductive.

Thermal Aging: this occurs during the lifetime of the solder interconnects, the package can be exposed to high ambient temperature or high dissipated heat during use. The micro-structure of the solder joint becomes more coarse and brittle. Mechanical Shock: the package undergoes shock during a short term exposure to high loads.

Thermo-mechanical fatigue: this type of failure arises as a result of the solder joints going through cyclic strains, due to different coefficients of thermal expansion of individual components in the package during service.

The most prevalent long-term reliability issues that can cause interconnect failure are thermal aging and thermo-mechanical fatigue. This study aims to evaluate the reliability of solder joints using finite element method, considering solder joint failure due to thermo-mechanical fatigue.

Three variations of the BGA (Ball Grid Array) package are evaluated using the finite element analysis. The SAC305 series lead (pb) free alloy of 96.5% tin, 3% silver, and 0.5% copper is employed for this study.

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Yunusa, Valeri Aisha. "Reliability of Solder Joints in Embedded Packages Using Finite Element Methods". PDXScholar, 2018. https://pdxscholar.library.pdx.edu/open_access_etds/4558.

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Solder joints serve as both mechanical and electrical connections between elements in a package. They are subjected to shear strains generated as a result of the different behaviors of the elements in the package (tension and compression) due to the differences in coefficients of thermal expansion during service conditions. Some of the causes of solder joint failures are due to the following: Vibration: small rapid displacements of parts of the assembly. This is not necessarily an issue with electronic components but larger parts like automobiles. Humidity: the package being exposed to water or ionic species can undergo corrosion if an electrical bias exists resulting in electrical opens or electrical shorts if the corrosion products are electrically conductive. Thermal Aging: this occurs during the lifetime of the solder interconnects, the package can be exposed to high ambient temperature or high dissipated heat during use. The micro-structure of the solder joint becomes more coarse and brittle. Mechanical Shock: the package undergoes shock during a short term exposure to high loads. Thermo-mechanical fatigue: this type of failure arises as a result of the solder joints going through cyclic strains, due to different coefficients of thermal expansion of individual components in the package during service. The most prevalent long-term reliability issues that can cause interconnect failure are thermal aging and thermo-mechanical fatigue. This study aims to evaluate the reliability of solder joints using finite element method, considering solder joint failure due to thermo-mechanical fatigue. Three variations of the BGA (Ball Grid Array) package are evaluated using the finite element analysis. The SAC305 series lead (pb) free alloy of 96.5% tin, 3% silver, and 0.5% copper is employed for this study.

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Ma, Jiajie. "Accuracy and reliability of non-linear finite element analysis for surgical simulation". University of Western Australia. School of Mechanical Engineering, 2006. http://theses.library.uwa.edu.au/adt-WU2010.0089.

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In this dissertation, the accuracy and reliability of non-linear finite element computations in application to surgical simulation is evaluated. The evaluation is performed through comparison between the experiment and finite element analysis of indentation of soft tissue phantom and human brain phantom. The evaluation is done in terms of the forces acting on the cylindrical Aluminium indenter and deformation of the phantoms due to these forces. The deformation of the phantoms is measured by tracking 3D motions of X-ray opaque markers implanted in the direct neighbourhood under the indenter using a custom-made biplane X-ray image intensifiers (XRII) system. The phantoms are made of Sylgard® 527 gel to simulate the hyperelastic constitutive behaviour of the brain tissue. The phantoms are prepared layer by layer to facilitate the implantation of the X-ray opaque markers. The modelling of soft tissue phantom indentation and human brain phantom indentation is performed using the ABAQUSTM/Standard finite element solver. Realistic geometry model of the human brain phantom obtained from Magnetic Resonance images is used. Specific constitutive properties of the phantom layers determined through uniaxial compression tests are used in the model. The models accurately predict the indentation force-displacement relations and marker displacements in both soft tissue phantom indentation and human brain phantom indentation. Good agreement between the experimental and modelling results verifies the reliability and accuracy of the finite element analysis techniques used in this study and confirms the predictive power of these techniques in application to surgical simulation.

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Jung, Hyung Chul. "A Study on Laser Forming Processes with Finite Element Analysis". Thesis, University of Canterbury. Mechanical Engineering, 2006. http://hdl.handle.net/10092/1099.

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Laser forming is an innovative technique that uses a defocused laser beam to form sheet metal by thermal stresses rather than external forces. Promising potential applications of laser forming include rapid prototyping, straightening, aligning and adjusting of macro/micro-metallic components. Research to-date on laser forming has been largely focused, theoretically and experimentally, on the problem of characterization of process parameters on the forming results, and computational simulations of laser forming remain limited only providing the insight into the process. This study investigates the laser forming processes using the finite element analysis with respect to material responses during the processes, including complex processes, process optimization, process reliability and the effects of thermal and mechanical material properties. The first part of this thesis describes a nonlinear transient three-dimensional heat transfer finite element model and a rate dependent three-dimensional deformation model, which are developed for the laser forming simulations. Simulations are performed using an indirect coupled thermal-structural method for the processes of a straight-line heating, a circle-line heating, and a laser micro-adjustment. The thermo-mechanical behaviours during the straight-line heating process are presented in terms of temperature, stress and strain, and displacement distributions. The emphasis in the circle-line heating simulations is placed on the characterization of the quality of the deformed geometry by obtaining the radial and circumferential waviness. The micron size movements induced by laser point heating are focused the simulations of the micro-adjustment process. Simulation results are validated by comparison with published data or correlation to engineering point of view. The second part of this thesis presents the development of an effective method to determine optimum process parameters in laser forming. For the process optimization, design optimisation techniques are introduced into the finite element analysis of the laser forming process. The optimum parameter values to produce a predefined bend angle of 3° in the straight-line heating process are sought by two optimization procedures - one is the procedure involving the non-gradient method and the other is the gradient-based method. Optimum values of laser power, feed rate, beam diameter and number of passes are determined to produce a predefined bend angle in a multiple straight-line heating process using the two optimization procedures. A more suitable optimisation method for laser forming is chosen, which is used for a new optimisation problem to generate a maximum bend angle in a single pass of laser forming. In the third part of this thesis, a strategy to assess the reliability of the laser forming process is established by employing a well-known reliability analysis method, the Monte Carlo simulation. Robustness of the straight-line heating process of producing 3° with the optimum parameters determined by process optimization is evaluated with regard to the uncertain input variables of laser power, feed rate, plate thickness and coefficient of thermal expansion via the Monte Carlo simulations based on the finite element simulations of the process. The final part of this thesis identifies the effects of material properties on the bend angle resulting from laser forming. Process sensitivity to the properties of coefficient of thermal expansion, thermal conductivity, specific heat capacity and elastic modulus is investigated by measuring the Pearson product-moment correlation coefficient between the properties and the bend angle, which are based on the Monte Carlo simulations of laser forming. The conclusion is that the developed finite element models contribute to a better understanding of the laser forming process, and the optimization procedure is able to be used for straightening, aligning and adjusting of components.

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Książki na temat "ELEMENT RELIABILITY"

Theofanis, Strouboulis, red. The finite element method and its reliability. Oxford, [England]: Clarendon Press, 2001.

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Kacprzynski, Jerzy J. Reliability studies of finite element methods in North America. Neuilly sur Seine, France: AGARD, 1987.

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C, Chamis C., i United States. National Aeronautics and Space Administration., red. Mapping methods for computationally efficient and accurate structural reliability. [Washington, DC: National Aeronautics and Space Administration, 1992.

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1955-, Duffy S. F., Gyekenyesi John P i United States. National Aeronautics and Space Administration., red. Reliability analysis of laminated CMC components through shell subelement techniques. [Washington, DC]: National Aeronautics and Space Administration, 1992.

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Tan, Cher Ming, Wei Li, Zhenghao Gan i Yuejin Hou. Applications of Finite Element Methods for Reliability Studies on ULSI Interconnections. London: Springer London, 2011. http://dx.doi.org/10.1007/978-0-85729-310-7.

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Tan, Cher Ming. Applications of finite element methods for reliability studies on ULSI interconnections. London: Springer, 2011.

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N, Nemeth Noel, i United States. National Aeronautics and Space Administration., red. Surface flaw reliability analysis of ceramic components with the SCARE finite element postprocessor program. [Washington, DC]: National Aeronautics and Space Administration, 1987.

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Zaretsky, Erwin V. Comparison of life theories for rolling-element bearings. [Washington, D.C.]: National Aeronautics and Space Administration, 1995.

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Zaretsky, Erwin V. Comparison of life theories for rolling-element bearings. [Washington, D.C.]: National Aeronautics and Space Administration, 1995.

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Klaus-Jürgen, Bathe, i Owen D. R. J, red. Reliability of methods for engineering analysis: Proceedings of the international conference held at the University College, Swansea, 9th-11th July 1986. Swansea, U.K: Pineridge Press, 1986.

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Części książek na temat "ELEMENT RELIABILITY"

Papadopoulos, Vissarion, i Dimitris G. Giovanis. "Reliability Analysis". W Stochastic Finite Element Methods, 71–98. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-64528-5_4.

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Gopalakrishnan, Srinivasan, Massimo Ruzzene i Sathyanarayana Hanagud. "Spectral Finite Element Method". W Springer Series in Reliability Engineering, 177–217. London: Springer London, 2011. http://dx.doi.org/10.1007/978-0-85729-284-1_5.

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Liang, G.-P. "Finite Element Program Generator and Finite Element Language". W Reliability and Robustness of Engineering Software II, 35–45. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3026-4_3.

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Tan, Cher Ming, Zhenghao Gan, Wei Li i Yuejin Hou. "Finite Element Method for Dielectric Reliability". W Springer Series in Reliability Engineering, 131–45. London: Springer London, 2011. http://dx.doi.org/10.1007/978-0-85729-310-7_6.

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Gutiérrez, M. A., J. Carmeliet i R. Borst. "Finite Element Reliability Methods Using DIANA". W DIANA Computational Mechanics ‘84, 255–63. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-1046-4_24.

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Tan, Cher Ming, Zhenghao Gan, Wei Li i Yuejin Hou. "Finite Element Method for Electromigration Study". W Springer Series in Reliability Engineering, 73–112. London: Springer London, 2011. http://dx.doi.org/10.1007/978-0-85729-310-7_4.

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Karadeniz, Halil, Mehmet Polat Saka i Vedat Togan. "Finite Element Analysis of Space Frame Structures". W Springer Series in Reliability Engineering, 1–119. London: Springer London, 2012. http://dx.doi.org/10.1007/978-1-84996-190-5_1.

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Tan, Cher Ming, Zhenghao Gan, Wei Li i Yuejin Hou. "Finite Element Method for Stress-Induced Voiding". W Springer Series in Reliability Engineering, 113–30. London: Springer London, 2011. http://dx.doi.org/10.1007/978-0-85729-310-7_5.

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Robinson, Ernest Y. "A Universal Bivariate Weibull Model for Static and Dynamic Fatigue Reliability Forecasting". W Rolling Element Bearings, 26–46. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959: ASTM International, 2012. http://dx.doi.org/10.1520/stp104267.

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Robinson, Ernest Y. "A Universal Bivariate Weibull Model for Static and Dynamic Fatigue Reliability Forecasting". W Rolling Element Bearings, 1–21. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959: ASTM International, 2012. http://dx.doi.org/10.1520/stp104267t.

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Streszczenia konferencji na temat "ELEMENT RELIABILITY"

Brož, P. "Transformative models in reliability assessment of structures". W BOUNDARY ELEMENT METHOD 2006. Southampton, UK: WIT Press, 2006. http://dx.doi.org/10.2495/be06026.

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Guo, Jing, i Ziling Song. "Slope finite element generalized reliability algorithms". W 2011 Second International Conference on Mechanic Automation and Control Engineering (MACE). IEEE, 2011. http://dx.doi.org/10.1109/mace.2011.5987732.

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Haldar, Achintya, Jungwon Huh i Ali Mehrabian. "Reliability Evaluation Using Finite Element Method". W ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-13796.

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A robust and sophisticated structural reliability evaluation procedure is presented. Reliability of any structural systems represented by finite elements can be evaluated using the algorithm. The authors called it a stochastic finite element method. Despite the significant recent progress in the risk and reliability analysis techniques, a large segment of the engineering profession is not familiar with them and thus fails to use them in everyday practices. The procedure is expected to fill that vacuum. Many sources of nonlinearity generally overlooked in the profession can be incorporated in the algorithm. Uncertainties in the load and resistance-related variables are modeled as realistically as possible. The estimation of the failure, probability implies that structural behavior just before failure needs to be captured as accurately as possible. The algorithm is capable of evaluating the probability of failure addressing all the related issues. With the help of four informative examples, the application potential of the procedure is clearly demonstrated. It is similar to the deterministic methods and is not expected to be complicated to the practicing engineers; thus, promoting its wider applications. It is shown that the observations made in laboratory experiments can be explained with the procedure. It is hoped that the method will be used in the future to estimate the reliability of real structures.

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Orisamolu, I., i Q. Liu. "Finite element reliability solution of stochastic eigenvalue problems". W 36th Structures, Structural Dynamics and Materials Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1995. http://dx.doi.org/10.2514/6.1995-1311.

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Ai-Habahbeh, O. M., B. A. Ai-Hrout, E. M. Al-Hiary i S. A. Ai-Fraihat. "Reliability investigation of photovoltaic cell using finite element modeling". W 2013 9th International Symposium on Mechatronics and its Applications (ISMA). IEEE, 2013. http://dx.doi.org/10.1109/isma.2013.6547391.

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August, Richard, i Erwin V. Zaretsky. "Incorporating Finite Element Analysis Into Component Life and Reliability". W ASME 1991 Design Technical Conferences. American Society of Mechanical Engineers, 1991. http://dx.doi.org/10.1115/detc1991-0011.

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Abstract A method for calculating a component’s design survivability by incorporating finite element analysis and probabilistic material properties was developed. The method evaluates design parameters through direct comparisons of component survivability expressed in terms of Weibull parameters. The analysis was applied to a rotating disk with mounting bolt holes. The highest probability of failure occurred at, or near, the maximum shear stress region of the bolt holes. Distribution of material failure as a function of Weibull slope affects the probability of survival. Where Weibull parameters are unknown for a rotating disk, it may be permissible to assume Weibull parameters, as well as the stress-life exponent, in order to determine the effect of disk speed on the probability of survival.

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Juang, C. Hsein, Yixun Ge i Jie Zhang. "Geological Uncertainty: A Missing Element in Geotechnical Reliability Analysis". W Proceedings of the 7th International Symposium on Geotechnical Safety and Risk (ISGSR 2019). Singapore: Research Publishing Services, 2019. http://dx.doi.org/10.3850/978-981-11-2725-0-wt-cd.

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Liu, Jiansong, Quanbin Yao, Pengrong Lin, Yusheng Cao i Binhao Lian. "The finite element analysis on reliability of gold bump". W 2016 17th International Conference on Electronic Packaging Technology (ICEPT). IEEE, 2016. http://dx.doi.org/10.1109/icept.2016.7583369.

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Kuehnel, Wolfram, Stefan Weise, Uwe Krueger, Hermann Sekler i Philip Stephenson. "The Validation Process - One Key Element of Reliability Management". W SAE 2005 World Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2005. http://dx.doi.org/10.4271/2005-01-1778.

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Gaspar, Bruno, Arvid Naess, Bernt J. Leira i C. Guedes Soares. "Efficient System Reliability Analysis by Finite Element Structural Models". W ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2011. http://dx.doi.org/10.1115/omae2011-49950.

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In principle, the reliability of complex structural systems can be accurately predicted through Monte Carlo simulation. This method has several attractive features for structural system reliability, the most important being that the system failure criterion is usually relatively easy to check almost irrespective of the complexity of the system. However, the computational cost involved in the simulation may be prohibitive for highly reliable structural systems. In this study a new Monte Carlo based method recently proposed for system reliability estimation that aims at reducing the computational cost is applied. It has been shown that the method provides good estimates for the system failure probability with reduced computational cost. By a numerical example the usefulness and efficiency of the method to estimate the reliability of a system represented by a nonlinear finite element structural model is demonstrated. To reduce the computational cost involved in the nonlinear finite element analysis the method is combined with a response surface model.

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Raporty organizacyjne na temat "ELEMENT RELIABILITY"

Bivens, Gretchen A. Reliability Assessment Using Finite Element Techniques. Fort Belvoir, VA: Defense Technical Information Center, listopad 1989. http://dx.doi.org/10.21236/ada216907.

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AMERICAN POWER JET CO RIDGEFIELD NJ. Structured Analysis: Review of ILS Element E13 Reliability, Availability and Maintainability. Fort Belvoir, VA: Defense Technical Information Center, marzec 1990. http://dx.doi.org/10.21236/ada259422.

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Yunusa, Valeri. Reliability of Solder Joints in Embedded Packages Using Finite Element Methods. Portland State University Library, styczeń 2000. http://dx.doi.org/10.15760/etd.6443.

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Lynch, Christopher S., i Chad Landis. Development of a Non-Linear Element Code for the Improvement of Piezoelectric Actuator Design and Reliability. Fort Belvoir, VA: Defense Technical Information Center, czerwiec 2006. http://dx.doi.org/10.21236/ada459521.

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Chen, Qishi, Joe Zhou, Duane DeGeer, Ola Bjornoy i Richard Verley. JTM13-CCP Collapse of Corroded Pipelines. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), kwiecień 2001. http://dx.doi.org/10.55274/r0011820.

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This paper presents preliminary numerical and experimental results obtained in an attempt to develop practical, reliability-based local buckling and collapse criteria for onshore and offshore pipelines that have experienced some form of metal-loss corrosion. The project was carried out in three phases involving finite element analysis, large-scale testing, and development of design criteria using reliability methodology. This paper summarizes the first two phases of this project including a characterization of corrosion defects, an assessment of the sensitivity of corrosion features based on finite element predictions, and test results of full-scale line pipe specimens.

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Dulcos, Ronald. Structured Analysis of the Logistic Support Analysis (LSA) Task, and Integrated Logistic Support (ILS) Element, LSA Subtask 301.2.4.2, Reliability Centered Maintenance (RCM). Fort Belvoir, VA: Defense Technical Information Center, czerwiec 1988. http://dx.doi.org/10.21236/ada257690.

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Mohr. L52032 Reliability of Girth Welds in Early Generation Pipelines - Joint Design and Flaw Combinations. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), lipiec 2004. http://dx.doi.org/10.55274/r0011221.

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Demonstrating the reliability of existing pipelines under new loading conditions requires the use of standard methods that have known applicability to that type of pipe and data relevant to the pipe.� Both of these may be lacking for early generation pipelines, such as ones from the 1930s and 1940s, where the girth welds can have been welded with processes not commonly used today (oxyacetylene welding) or with joint designs that use internal backing.� Three types of joint designs were particularly used in this study:� butt joints with an internal backing ring, butt joints with a backing or chill ring and enlarged diameter on either side of the weld (bell-bell chill ring joints), and butt joints where one side of the weld has an enlarged diameter sufficient to slide that side over the other side (bell and spigot joints). Three approaches were taken to demonstrating the capacity of early generation pipelines for longitudinal loading across girth welds.� First, small-scale tests were performed on a variety of girth weld types, determining both stresses and strains to failure and other mechanical properties.� Testing data from individual pipeline companies is included here to add to the available data.� Second, finite-element analyses were performed for welds with internal backing rings so that comparisons could be made between small-scale specimens and full-scale pipes.� The effect of internal pressure was also examined.� Third, two full-scale tests of early generation bell-bell chill ring welds were performed with combined axial loading and internal pressure.

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Rudnik, Paul J., i William R. Sproul. Ceramic Coated Bearing Elements for Improved Durability and Reliability. Fort Belvoir, VA: Defense Technical Information Center, październik 1995. http://dx.doi.org/10.21236/ada323633.

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Crawford, D. C., i D. L. Porter. The reliability of untempered end plug welds on HT9-clad IFR fuel elements. Office of Scientific and Technical Information (OSTI), luty 1987. http://dx.doi.org/10.2172/713590.

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Tao, Gang, i Mark Stephens. PR-244-18702-R01 Evaluation of Casing Integrity for Underground Storage Wells. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), czerwiec 2021. http://dx.doi.org/10.55274/r0012101.

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This work was funded in part, under the Department of Transportation, Pipeline and Hazardous Materials Safety Administration. The views and conclusions contained in this document are those of the authors and should not be interpreted as representing the official policies, either expressed or implied, of the Pipeline and Hazardous Materials Safety Administration, the Department of Transportation, or the U.S. Government. C-FER Technologies (1999) Inc., ("C-FER") conducted a multi-phase study to further advance the ability to predict the remaining casing burst capacity for underground natural gas storage wells. This project is co-funded by the Pipeline Research Council International, Inc. (PRCI) and the US Department of Transportation (DOT), Pipeline and Hazardous Materials Safety Administration (PHMSA). This project included a literature review of casing corrosion logging technologies and remaining burst capacity prediction models. Three casing corrosion logging tools, selected based on the outcome of a preceding PRCI casing logging tool test program, were tested to further evaluate their performance in detecting and sizing various metal loss features on casing specimens. Physical burst tests with capped ends were conducted on 20 specimens selected from the logged casing joints to benchmark the burst prediction models. Advanced finite element analysis (FEA) was also performed to evaluate the effect of in-situ downhole load conditions on the remaining burst capacity of corroded casing. A reliability-based framework was outlined to quantitatively address various uncertainties associated with the casing corrosion integrity management. This report summarizes the work completed, the key results and conclusions, as well as recommendations for future initiatives.

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