Damage Tolerance of Metallic Aircraft Structures Book

Damage Tolerance of Metallic Aircraft Structures


  • Author : Sérgio M. O. Tavares
  • Publisher : Springer
  • Release Date : 2018-08-06
  • Genre: Technology & Engineering
  • Pages : 106
  • ISBN 10 : 9783319701905

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Damage Tolerance of Metallic Aircraft Structures Excerpt :

This book provides a state-of-the-art review of the fail-safe and damage tolerance approaches, allowing weight savings and increasing aircraft reliability and structural integrity. The application of the damage tolerance approach requires extensive know-how of the fatigue and fracture properties, corrosion strength, potential failure modes and non-destructive inspection techniques, particularly minimum detectable defect and inspection intervals. In parallel, engineering practice involving damage tolerance requires numerical techniques for stress analysis of cracked structures. These evolved from basic mode I evaluations using rough finite element approaches, to current 3D modeling based on energetic approaches as the VCCT, or simulation of joining processes. This book provides a concise introduction to this subject.

Aircraft Sustainment and Repair Book
Score: 5
From 1 Ratings

Aircraft Sustainment and Repair


  • Author : Rhys Jones
  • Publisher : Butterworth-Heinemann
  • Release Date : 2017-12-15
  • Genre: Technology & Engineering
  • Pages : 970
  • ISBN 10 : 9780081005446

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Aircraft Sustainment and Repair Excerpt :

Aircraft Sustainment and Repair is a one-stop-shop for practitioners and researchers in the field of aircraft sustainment, adhesively bonded aircraft joints, bonded composites repairs, and the application of cold spray to military and civil aircraft. Outlining the state-of-the-art in aircraft sustainment, this book covers the use of quantitative fractography to determine the in-service crack length versus flight hours curve, the effect of intergranular cracking on structural integrity and the structural significance of corrosion. The book additionally illustrates the potential of composite repairs and SPD applications to metallic airframes. Covers corrosion damage assessment and management in aircraft structures Includes a key chapter on U.S. developments in the emerging field of supersonic particle deposition (SPD) Shows how to design and assess the potential benefits of both bonded composite repairs and SPD repairs to metallic aircraft structures to meet the damage tolerance requirements inherent in FAA ac 20-107b and the U.S. Joint Services

Advances in the Bonded Composite Repair of Metallic Aircraft Structure Book
Score: 3.5
From 3 Ratings

Advances in the Bonded Composite Repair of Metallic Aircraft Structure


  • Author : A.A. Baker
  • Publisher : Elsevier
  • Release Date : 2003-01-23
  • Genre: Technology & Engineering
  • Pages : 1122
  • ISBN 10 : 0080522955

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Advances in the Bonded Composite Repair of Metallic Aircraft Structure Excerpt :

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.

Structural Health Monitoring Damage Detection Systems for Aerospace Book

Structural Health Monitoring Damage Detection Systems for Aerospace


  • Author : Markus G. R. Sause
  • Publisher : Springer Nature
  • Release Date : 2021
  • Genre: Aerospace engineering
  • Pages : 284
  • ISBN 10 : 9783030721923

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Structural Health Monitoring Damage Detection Systems for Aerospace Excerpt :

This open access book presents established methods of structural health monitoring (SHM) and discusses their technological merit in the current aerospace environment. While the aerospace industry aims for weight reduction to improve fuel efficiency, reduce environmental impact, and to decrease maintenance time and operating costs, aircraft structures are often designed and built heavier than required in order to accommodate unpredictable failure. A way to overcome this approach is the use of SHM systems to detect the presence of defects. This book covers all major contemporary aerospace-relevant SHM methods, from the basics of each method to the various defect types that SHM is required to detect to discussion of signal processing developments alongside considerations of aerospace safety requirements. It will be of interest to professionals in industry and academic researchers alike, as well as engineering students.

New Materials for Next Generation Commercial Transports Book

New Materials for Next Generation Commercial Transports


  • Author : National Research Council
  • Publisher : National Academies Press
  • Release Date : 1996-03-15
  • Genre: Technology & Engineering
  • Pages : 98
  • ISBN 10 : 030917595X

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New Materials for Next Generation Commercial Transports Excerpt :

The major objective of this book was to identify issues related to the introduction of new materials and the effects that advanced materials will have on the durability and technical risk of future civil aircraft throughout their service life. The committee investigated the new materials and structural concepts that are likely to be incorporated into next generation commercial aircraft and the factors influencing application decisions. Based on these predictions, the committee attempted to identify the design, characterization, monitoring, and maintenance issues that are critical for the introduction of advanced materials and structural concepts into future aircraft.

USAF Damage Tolerant Design Handbook Book

USAF Damage Tolerant Design Handbook


  • Author : J. P. Gallagher
  • Publisher : Unknown
  • Release Date : 1984
  • Genre: Airframes
  • Pages : 300
  • ISBN 10 : MINN:31951D036986047

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USAF Damage Tolerant Design Handbook Excerpt :

The handbook provides specific background data and justification for the detailed requirements of MIL-A-83444 and provides guidelines and state-of-the-art analysis methods to assist contractor and USAF personnel in complying with the intent of the specification and in solving cracking problems, in general, for metallic aircraft structures. Cf. Report Documentation Page.

Fatigue Crack Growth Failure and Lifing Analyses for Metallic Aircraft Structures and Components Book

Fatigue Crack Growth Failure and Lifing Analyses for Metallic Aircraft Structures and Components


  • Author : Russell Wanhill
  • Publisher : Springer
  • Release Date : 2019-02-19
  • Genre: Technology & Engineering
  • Pages : 99
  • ISBN 10 : 9789402416756

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Fatigue Crack Growth Failure and Lifing Analyses for Metallic Aircraft Structures and Components Excerpt :

This book provides a concise discussion of fatigue crack growth (FCG) failure and lifing analysis methods for metallic aircraft structures and components. After a reasonably concise historical review, surveys are made of (i) the importance of fatigue for aircraft structural failures and the sources of fatigue nucleation and cracking, (ii) contemporary FCG lifing methods, and (iii) the Quantitative Fractography (QF) required for determining the actual FCG behaviour. These surveys are followed by the main part of the book, which is a discussion, using case histories, of the applicabilities of Linear Elastic Fracture Mechanics (LEFM) and non-LEFM methods for analysing service fatigue failures and full- and sub-scale test results. This discussion is derived primarily from the experiences of the Defence Science and Technology Group in Melbourne, Australia, and the Netherlands Aerospace Centre, Marknesse, the Netherlands.

Estimation of Probability of Failure for Damage Tolerant Aerospace Structures Book

Estimation of Probability of Failure for Damage Tolerant Aerospace Structures


  • Author : Keith Halbert
  • Publisher : Unknown
  • Release Date : 2014
  • Genre: Uncategoriezed
  • Pages : 192
  • ISBN 10 : OCLC:1285300857

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Estimation of Probability of Failure for Damage Tolerant Aerospace Structures Excerpt :

The majority of aircraft structures are designed to be damage-tolerant such that safe operation can continue in the presence of minor damage. It is necessary to schedule inspections so that minor damage can be found and repaired. It is generally not possible to perform structural inspections prior to every flight. The scheduling is traditionally accomplished through a deterministic set of methods referred to as Damage Tolerance Analysis (DTA). DTA has proven to produce safe aircraft but does not provide estimates of the probability of failure of future flights or the probability of repair of future inspections. Without these estimates maintenance costs cannot be accurately predicted. Also, estimation of failure probabilities is now a regulatory requirement for some aircraft. The set of methods concerned with the probabilistic formulation of this problem are collectively referred to as Probabilistic Damage Tolerance Analysis (PDTA). The goal of PDTA is to control the failure probability while holding maintenance costs to a reasonable level. This work focuses specifically on PDTA for fatigue cracking of metallic aircraft structures. The growth of a crack (or cracks) must be modeled using all available data and engineering knowledge. The length of a crack can be assessed only indirectly through evidence such as non-destructive inspection results, failures or lack of failures, and the observed severity of usage of the structure. The current set of industry PDTA tools are lacking in several ways: they may in some cases yield poor estimates of failure probabilities, they cannot realistically represent the variety of possible failure and maintenance scenarios, and they do not allow for model updates which incorporate observed evidence. A PDTA modeling methodology must be flexible enough to estimate accurately the failure and repair probabilities under a variety of maintenance scenarios, and be capable of incorporating observed evidence as it becomes available. This dissert

Damage and Fracture Mechanics Book

Damage and Fracture Mechanics


  • Author : Taoufik Boukharouba
  • Publisher : Springer Science & Business Media
  • Release Date : 2009-08-09
  • Genre: Science
  • Pages : 611
  • ISBN 10 : 9789048126699

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Damage and Fracture Mechanics Excerpt :

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.

Bonded Repair of Aircraft Structures Book

Bonded Repair of Aircraft Structures


  • Author : A. Baker
  • Publisher : Springer Science & Business Media
  • Release Date : 1988-05-31
  • Genre: Technology & Engineering
  • Pages : 214
  • ISBN 10 : 9024736064

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Bonded Repair of Aircraft Structures Excerpt :

The conventional approach to through-life-support for aircraft structures can be divided into the following phases: (i) detection of defects, (ii) diagnosis of their nature and significance, (iii) forecasting future behaviour-prognosis, and (iv) pre scription and implementation of remedial measures including repairs. Considerable scientific effort has been devoted to developing the science and technology base for the first three phases. Of particular note is the development of fracture mechanics as a major analytical tool for metals, for predicting residual strength in the presence of cracks ( damage tolerance) and rate of crack propagation under service loading. Intensive effort is currently being devoted to developing similar approaches for fibre composite structures, particularly to assess damage tolerance and durability in the presence of delamination damage. Until recently there has been no major attempt to develop a science and tech nology base for the last phase, particularly with respect to the development of repairs. Approaches are required which will allow assessment of the type and magnitude of defects amenable to repair and the influence of the repair on the stress intensity factor (or some related parameter). Approaches are also required for the development and design of optimum repairs and for assessment of their durability.

Mechanics of Aeronautical Composite Materials Book

Mechanics of Aeronautical Composite Materials


  • Author : Christophe Bouvet
  • Publisher : John Wiley & Sons
  • Release Date : 2017-08-14
  • Genre: Science
  • Pages : 318
  • ISBN 10 : 9781119459033

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Mechanics of Aeronautical Composite Materials Excerpt :

This book presents the principles of composite laminate sizing widely used for composite structures. The focus is on aeronautics in particular, including the concepts of limit loads and ultimate loads. After a brief overview of the main composite materials used in aeronautics, the basic theory of laminated plates and the associated rupture criteria are given. The author presents two fundamental cases of the sizing of aeronautical composite structures: the calculation of the holed structures and their subsequent multi-bolt joints, and the calculation of the buckling. The concept of damage tolerance is also explored, with a focus on its application for tolerance to impact damage. These notions are fundamental for understanding the specificities of the sizing of aeronautical composite structures. The book also contains corrected exercises for the reader to test their understanding of the different topics covered.

Aerospace Structures and Materials Book

Aerospace Structures and Materials


  • Author : Yucheng Liu
  • Publisher : Bentham Science Publishers
  • Release Date : 2016-10-07
  • Genre: Technology & Engineering
  • Pages : 585
  • ISBN 10 : 9781681083056

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Aerospace Structures and Materials Excerpt :

This comprehensive volume presents a wide spectrum of information about the design, analysis and manufacturing of aerospace structures and materials. Readers will find an interesting compilation of reviews covering several topics such as structural dynamics and impact simulation, acoustic and vibration testing and analysis, fatigue analysis and life optimization, reversing design methodology, non-destructive evaluation, remotely piloted helicopters, surface enhancement of aerospace alloys, manufacturing of metal matrix composites, applications of carbon nanotubes in aircraft material design, carbon fiber reinforcements, variable stiffness composites, aircraft material selection, and much more. This volume is a key reference for graduates undertaking advanced courses in materials science and aeronautical engineering as well as researchers and professional engineers seeking to increase their understanding of aircraft material selection and design.

Analysis of Metallic Aerospace Structures Book

Analysis of Metallic Aerospace Structures


  • Author : Vijay Goyal
  • Publisher : Unknown
  • Release Date : 2021-12-31
  • Genre: Uncategoriezed
  • Pages : null
  • ISBN 10 : 0578254905

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Analysis of Metallic Aerospace Structures Excerpt :

This book intends to provide the foundation and applications used in aircraft stress analysis for metallic substructures. Instead of providing a mere introduction and discussion of the theoretical aspects, the book intends to help the starting engineer or first-time student conduct a stress analysis of an aircraft subpart. In this context, readers with a mechanical, civil, or naval engineering background follow the concepts. We can assure you that this book will fill up a void in the personal or professional library of many engineers trying, or planning, to conduct stress analysis on aircraft structures. The motivation for this book comes from years of teaching and industry experience and lessons learned. While there are excellent books on theory and others on analysis methods, there seems to be a gap between the graduating student and the industry practice. Although the intention is not to teach industry methods to undergraduate/graduate students, the books discuss the typical theory covered in traditional textbooks while using the concepts close to the industry practices. The book also tries to blend conventional theoretical approaches with some modern numerical techniques. This allows the beginning engineer, or the enrolled student in an aerospace undergraduate program, to learn and use the techniques while understanding their background in a practical sense. One major problem that we try to tackle throughout the book is the ``black-box'' approach. Emphasis is on the discussion of a result more than the right or wrong answer, allowing the reader to understand the topics better. https://www.aeiservices.org/