Advances In Fatigue And Fracture Mechanics Analyses For Metallic Aircraft Structures
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Advances In Fatigue And Fracture Mechanics Analyses For Metallic Aircraft Structures
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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-05-29
Advances In Fatigue And Fracture Mechanics Analyses For Metallic Aircraft Structures written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-05-29 with categories.
This paper reviews some of the advances that have been made in stress analyses of cracked aircraft components, in the understanding of the fatigue and fatigue-crack growth process, and in the prediction of residual strength of complex aircraft structures with widespread fatigue damage. Finite-element analyses of cracked metallic structures are now used to determine accurate stress-intensity factors for cracks at structural details. Observations of small-crack behavior at open and rivet-loaded holes and the development of small-crack theory has lead to the prediction of stress-life behavior for components with stress concentrations under aircraft spectrum loading. Fatigue-crack growth under simulated aircraft spectra can now be predicted with the crack-closure concept. Residual strength of cracked panels with severe out-of-plane deformations (buckling) in the presence of stiffeners and multiple-site damage can be predicted with advanced elastic-plastic finite-element analyses and the critical crack-tip-opening angle (CTOA) fracture criterion. These advances are helping to assure continued safety of aircraft structures.Newman, J. C., Jr.Langley Research CenterAIRCRAFT STRUCTURES; CRACKS; FINITE ELEMENT METHOD; FRACTURE MECHANICS; STRESS ANALYSIS; METALS; CRACK PROPAGATION; METAL FATIGUE; STRESS INTENSITY FACTORS; RESIDUAL STRENGTH; CRACK CLOSURE; DAMAGE; STRESS CONCENTRATION; RIVETED JOINTS; PLASTIC PROPERTIES
Advances In Fatigue And Fracture Mechanics Analyses For Metallic Aircraft Structures
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Author : J. C. Newman
language : en
Publisher:
Release Date : 2000
Advances In Fatigue And Fracture Mechanics Analyses For Metallic Aircraft Structures written by J. C. Newman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Airframes categories.
This paper reviews some of the advances that have been made in stress analyses of cracked aircraft components, in the understanding of the fatigue and fatigue-crack growth process, and in the prediction of residual strength of complex aircraft structures with widespread fatigue damage. Finite-element analyses of cracked metallic structures are now used to determine accurate stress-intensity factors for cracks at structural details. Observations of small-crack behavior at open and rivet-loaded holes and the development of small-crack theory has lead to the prediction of stress-life behavior for components with stress concentrations under aircraft spectrum loading. Fatigue-crack growth under simulated aircraft spectra can now be predicted with the crack-closure concept. Residual strength of cracked panels with severe out-of-plane deformations (buckling) in the presence of stiffeners and multiple-site damage can be prediceted with advanced elastic-plastic finite-element analyses and the critical crack-tip-opening angle (CTOA) fracture criterion. These advances are helping to assure continued safety of aircraft structures.
Advances In Fatigue And Fracture Mechanics Analyses For Metallic Aircraft Structures
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Author : J. C. Newman (Jr)
language : en
Publisher:
Release Date : 2000
Advances In Fatigue And Fracture Mechanics Analyses For Metallic Aircraft Structures written by J. C. Newman (Jr) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with categories.
Advances In The Bonded Composite Repair Of Metallic Aircraft Structure
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Author : A.A. Baker
language : en
Publisher: Elsevier
Release Date : 2003-01-23
Advances In The Bonded Composite Repair Of Metallic Aircraft Structure written by A.A. Baker and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-01-23 with Technology & Engineering categories.
The availability of efficient and cost-effective technologies to repair or extend the life of aging military airframes is becoming a critical requirement in most countries around the world, as new aircraft becoming prohibitively expensive and defence budgets shrink. To a lesser extent a similar situation is arising with civil aircraft, with falling revenues and the high cost of replacement aircraft.This book looks at repair/reinforcement technology, which is based on the use of adhesively bonded fibre composite patches or doublers and can provide cost-effective life extension in many situations. From the scientific and engineering viewpoint, whilst simple in concept, this technology can be quite challenging particularly when used to repair primary structure. This is due to it being based on interrelated inputs from the fields of aircraft design, solid mechanics, fibre composites, structural adhesive bonding, fracture mechanics and metal fatigue. The technologies of non-destructive inspection (NDI) and, more recently smart materials, are also included. Operational issues are equally critical, including airworthiness certification, application technology (including health and safety issues), and training.Including contributions from leading experts in Canada, UK, USA and Australia, this book discusses most of these issues and the latest developments. Most importantly, it contains real histories of application of this technology to both military and civil aircraft.
Damage And Fracture Mechanics
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Author : Taoufik Boukharouba
language : en
Publisher: Springer Science & Business Media
Release Date : 2009-08-09
Damage And Fracture Mechanics written by Taoufik Boukharouba and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-08-09 with Science categories.
The First African InterQuadrennial ICF Conference “AIQ-ICF2008” on Damage and Fracture Mechanics – Failure Analysis of Engineering Materials and Structures”, Algiers, Algeria, June 1–5, 2008 is the first in the series of InterQuadrennial Conferences on Fracture to be held in the continent of Africa. During the conference, African researchers have shown that they merit a strong reputation in international circles and continue to make substantial contributions to the field of fracture mechanics. As in most countries, the research effort in Africa is und- taken at the industrial, academic, private sector and governmental levels, and covers the whole spectrum of fracture and fatigue. The AIQ-ICF2008 has brought together researchers and engineers to review and discuss advances in the development of methods and approaches on Damage and Fracture Mechanics. By bringing together the leading international experts in the field, AIQ-ICF promotes technology transfer and provides a forum for industry and researchers of the host nation to present their accomplishments and to develop new ideas at the highest level. International Conferences have an important role to play in the technology transfer process, especially in terms of the relationships to be established between the participants and the informal exchange of ideas that this ICF offers.
Proceedings Of The 9th International Symposium On Superalloy 718 Derivatives Energy Aerospace And Industrial Applications
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Author : Eric Ott
language : en
Publisher: Springer
Release Date : 2018-05-12
Proceedings Of The 9th International Symposium On Superalloy 718 Derivatives Energy Aerospace And Industrial Applications written by Eric Ott and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-05-12 with Technology & Engineering categories.
This technical meeting will focus on Alloy 718 and Superalloys in this class relative to alloy and process development, production, product applications, trends and the development of advanced modeling tools. The symposium provides an opportunity for authors to present technical advancements relative to a broad spectrum of areas while assessing their impact on related fields associated with this critical alloy group. There are continuing innovations relative to these alloys as well as novel processing techniques which continue to extend applications in very challenging environments ranging from corrosion resistance in the deep sea to high-stressed space applications.
Handbook Of Structural Life Assessment
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Author : Raouf A. Ibrahim
language : en
Publisher: John Wiley & Sons
Release Date : 2017-03-29
Handbook Of Structural Life Assessment written by Raouf A. Ibrahim and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-03-29 with Technology & Engineering categories.
This important, self-contained reference deals with structural life assessment (SLA) and structural health monitoring (SHM) in a combined form. SLA periodically evaluates the state and condition of a structural system and provides recommendations for possible maintenance actions or the end of structural service life. It is a diversified field and relies on the theories of fracture mechanics, fatigue damage process, and reliability theory. For common structures, their life assessment is not only governed by the theory of fracture mechanics and fatigue damage process, but by other factors such as corrosion, grounding, and sudden collision. On the other hand, SHM deals with the detection, prediction, and location of crack development online. Both SLA and SHM are combined in a unified and coherent treatment.
Handbook Of Materials Failure Analysis With Case Studies From The Aerospace And Automotive Industries
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Author : Abdel Salam Hamdy Makhlouf
language : en
Publisher: Butterworth-Heinemann
Release Date : 2015-09-01
Handbook Of Materials Failure Analysis With Case Studies From The Aerospace And Automotive Industries written by Abdel Salam Hamdy Makhlouf and has been published by Butterworth-Heinemann this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-09-01 with Technology & Engineering categories.
Handbook of Materials Failure Analysis: With Case Studies from the Aerospace and Automotive Industries provides a thorough understanding of the reasons materials fail in certain situations, covering important scenarios, including material defects, mechanical failure as a result of improper design, corrosion, surface fracture, and other environmental causes. The book begins with a general overview of materials failure analysis and its importance, and then logically proceeds from a discussion of the failure analysis process, types of failure analysis, and specific tools and techniques, to chapters on analysis of materials failure from various causes. Later chapters feature a selection of newer examples of failure analysis cases in such strategic industrial sectors as aerospace, oil & gas, and chemicals. - Covers the most common types of materials failure, analysis, and possible solutions - Provides the most up-to-date and balanced coverage of failure analysis, combining foundational knowledge, current research on the latest developments, and innovations in the field - Ideal accompaniment for those interested in materials forensic investigation, failure of materials, static failure analysis, dynamic failure analysis, fatigue life prediction, rotorcraft, failure prediction, fatigue crack propagation, bevel pinion failure, gasketless flange, thermal barrier coatings - Presents compelling new case studies from key industries to demonstrate concepts - Highlights the role of site conditions, operating conditions at the time of failure, history of equipment and its operation, corrosion product sampling, metallurgical and electrochemical factors, and morphology of failure
Faa Nasa International Symposium On Advanced Structural Integrity Methods For Airframe Durability And Damage Tolerance
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Author : Charles E. Harris
language : en
Publisher:
Release Date : 1994
Faa Nasa International Symposium On Advanced Structural Integrity Methods For Airframe Durability And Damage Tolerance written by Charles E. Harris and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Airframes categories.
Faa Nasa International Symposium On Advanced Structural Integrity Methods For Airframe Durability And Damage Tolerance Part 2
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Author :
language : en
Publisher:
Release Date : 1994
Faa Nasa International Symposium On Advanced Structural Integrity Methods For Airframe Durability And Damage Tolerance Part 2 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with categories.