Fatigue Reliability Of Gas Turbine Engine Structures
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| Author | : National Aeronautics and Space Administration (NASA) |
| Publisher | : Createspace Independent Publishing Platform |
| Total Pages | : 58 |
| Release | : 2018-07-08 |
| Genre | : |
| ISBN | : 9781722393229 |
The results of an investigation are described for fatigue reliability in engine structures. The description consists of two parts. Part 1 is for method development. Part 2 is a specific case study. In Part 1, the essential concepts and practical approaches to damage tolerance design in the gas turbine industry are summarized. These have evolved over the years in response to flight safety certification requirements. The effect of Non-Destructive Evaluation (NDE) methods on these methods is also reviewed. Assessment methods based on probabilistic fracture mechanics, with regard to both crack initiation and crack growth, are outlined. Limit state modeling techniques from structural reliability theory are shown to be appropriate for application to this problem, for both individual failure mode and system-level assessment. In Part 2, the results of a case study for the high pressure turbine of a turboprop engine are described. The response surface approach is used to construct a fatigue performance function. This performance function is used with the First Order Reliability Method (FORM) to determine the probability of failure and the sensitivity of the fatigue life to the engine parameters for the first stage disk rim of the two stage turbine. A hybrid combination of regression and Monte Carlo simulation is to use incorporate time dependent random variables. System reliability is used to determine the system probability of failure, and the sensitivity of the system fatigue life to the engine parameters of the high pressure turbine. 'ne variation in the primary hot gas and secondary cooling air, the uncertainty of the complex mission loading, and the scatter in the material data are considered. Cruse, Thomas A. and Mahadevan, Sankaran and Tryon, Robert G. Glenn Research Center...
| Author | : Efstratios Nikolaidis |
| Publisher | : CRC Press |
| Total Pages | : 1216 |
| Release | : 2004-12-22 |
| Genre | : Mathematics |
| ISBN | : 0203483936 |
Researchers in the engineering industry and academia are making important advances on reliability-based design and modeling of uncertainty when data is limited. Non deterministic approaches have enabled industries to save billions by reducing design and warranty costs and by improving quality. Considering the lack of comprehensive and defini
| Author | : J.W. Provan |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 477 |
| Release | : 2013-04-17 |
| Genre | : Science |
| ISBN | : 9401727643 |
With the advent of the 80's there has been an increasing need for analytic and numerical techniques, based on a thorough understanding of microstructural processes, that express in a manner suitable for practicing engineers the reliability of components and structures that are being subjected to degradation situations. Such situations fall within the framework offracture mechanics, fatigue, corrosion fatigue and pitting corrosion. Luckily, such techniques are now being developed and it was felt timely to combine in one volume reports by the leaders in this field who are currently making great strides towards solving these problems. Hence the idea of this monograph was born and I am pleased to be associated both with it and the contributors whose chapters are included in this volume. A very large part of the credit for this monograph must go to the authors who have taken time out from their busy schedules to prepare their submissions. They have all worked diligently over the last few months in order to get their manuscripts to me on time and I sincerely thank them for their help throughout the preparation of this volume.
| Author | : Krishna B. Misra |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 1331 |
| Release | : 2008-08-24 |
| Genre | : Technology & Engineering |
| ISBN | : 1848001312 |
Dependability and cost effectiveness are primarily seen as instruments for conducting international trade in the free market environment. These factors cannot be considered in isolation of each other. This handbook considers all aspects of performability engineering. The book provides a holistic view of the entire life cycle of activities of the product, along with the associated cost of environmental preservation at each stage, while maximizing the performance.
| Author | : |
| Publisher | : |
| Total Pages | : 232 |
| Release | : 1988 |
| Genre | : Engines |
| ISBN | : |
| Author | : Thomas A. Cruse |
| Publisher | : CRC Press |
| Total Pages | : 364 |
| Release | : 1997-01-24 |
| Genre | : Technology & Engineering |
| ISBN | : 9780824797935 |
Discussing the modern tools that support designs based on product reliability, this text focuses on the classical techniques of reliability analysis as well as response surface modelling and physics-based reliability prediction methods. It makes use of the available personal computer tools that permit a host of application examples, and contains an IBM-compatible disk that illustrates immediately applicable software that facilitates reliability modelling in mechanical design.
| Author | : Dan M. Frangopol |
| Publisher | : American Society of Civil Engineers |
| Total Pages | : 1036 |
| Release | : 1996 |
| Genre | : Mathematics |
| ISBN | : |
Contains three keynote papers and some 230 contributed four-page papers from the August 1996 conference, examining all aspects of probabalistic mechanics and structural reliability regarding assessment and design of structural, mechanical, marine, aerospace, geotechnical, and environmental systems. Emphasis is on concepts and methods of probability in the design of engineering systems, with particular focus on progress in stochastic mechanics in earthquake engineering, structural dynamics, and finite element methods. Annotation copyright by Book News, Inc., Portland, OR
| Author | : Jie Fang |
| Publisher | : Herbert Utz Verlag |
| Total Pages | : 152 |
| Release | : 2015-07-23 |
| Genre | : Austenitic stainless steel |
| ISBN | : 3831644845 |
The present work aims at engineers and scientists in the field of computational mechanics of materials. The objective of this work is to develop a suitable constitutive law and apply it to study effects of cyclic loading and geometry on the fatigue assessment. Firstly, a systematical investigation on the mechanic behaviors of an austenitic stainless steel is carried out. Different multiaxial fatigue life prediction models are studied to assess fatigue damage. The Karim-Ohno kinematic hardening model is extended to incorporate more complex mechanical behaviors. The proposed constitutive model is implemented into FEM code ABAQUS. Finally a computational fatigue analysis methodology is proposed for performing life prediction of notched components based on elastic-plastic computation.
| Author | : Andrey A. Radionov |
| Publisher | : Springer Nature |
| Total Pages | : 1416 |
| Release | : 2021-03-26 |
| Genre | : Technology & Engineering |
| ISBN | : 3030548171 |
This book highlights recent findings in industrial, manufacturing and mechanical engineering, and provides an overview of the state of the art in these fields, mainly in Russia and Eastern Europe. A broad range of topics and issues in modern engineering are discussed, including the dynamics of machines and working processes, friction, wear and lubrication in machines, surface transport and technological machines, manufacturing engineering of industrial facilities, materials engineering, metallurgy, control systems and their industrial applications, industrial mechatronics, automation and robotics. The book gathers selected papers presented at the 6th International Conference on Industrial Engineering (ICIE), held in Sochi, Russia in May 2020. The authors are experts in various fields of engineering, and all papers have been carefully reviewed. Given its scope, the book will be of interest to a wide readership, including mechanical and production engineers, lecturers in engineering disciplines, and engineering graduates.
| Author | : C. Moura Branco |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 982 |
| Release | : 2012-12-06 |
| Genre | : Technology & Engineering |
| ISBN | : 9400922779 |
This volume contains the edited version of lectures and selected research contributions presented at the NATO ADVANCED STUDY INSTITUTE on ADVANCES IN FATIGUE SCIENCE AND TECHNOLOGY. held in Alvor. Portugal, 4th to 15th of April 1988. and organized by CEMUL - Center of Mechanics and Materials of The Technical University of Lisbon. The Institute was attended by 101 participants, including 15 lecturers. from 14 countries. The participants were leading scientists and engineers from universities, research institutions and industry. and also Ph.D~ students. Some participants presented papers during the Institute reporting the state-of-art of their research projects. All the sessions wel'e very active and quite extensive discussions on scientific aspects took place during the Institute. The Advanced Study Institute provided a forum for interaction among eminent scientists and engineers. from different schools of thought and young researchers. The Institute addressed the foundations and current state of the art of essential aspects related to fatigue science and technology, namely: Short Cracks, Metallurgical Aspects, Environmental Fatigue, Threshold Behaviour, Notch Behaviour. Creep and Fatigue Interactions at High Temperature, Multiaxial Fatigue, Low Cycle Fatigue, Methodology of Fatigue Testing, Variable Amplitude Fatigue, Fatigue of Advanced Materials. Elastic-Plastic Fatigue, and several engineering applications such as welded joints, energy systems, offshore structures, automotive industry, machine and engine components. This book is organized in three parts: Part I: Fundamentals of Fatigue Part II: Engineering Applications Part III: Research Contributions The research contributions covered most of the areas referred above.
