Fracture Control Procedures for Aircraft Structural Integrity PDF Download
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Author: Howard A. Wood
Publisher:
ISBN:
Category : Airframes
Languages : en
Pages : 92
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Book Description
The report reviews the application of applied fracture mechanics in the design, analysis and qualification of aircraft structural systems. Recent service experiences are cited. Current trends in high strength materials application are reviewed with particular emphasis on the manner in which fracture toughness and structural efficiency may affect the material selection process. General fracture control procedures are reviewed in depth with specific reference to the impact of inspectability, structural arrangement and material on proposed analysis requirements for safe crack growth. The relative impact on allowable design stress is indicated by example. Design criteria, material and analysis requirements for implementation of fracture control procedures are reviewed together with limitation in current available data techniques. A summary of items which require further study and attention is presented.
Author: Howard A. Wood
Publisher:
ISBN:
Category : Airframes
Languages : en
Pages : 92
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Book Description
The report reviews the application of applied fracture mechanics in the design, analysis and qualification of aircraft structural systems. Recent service experiences are cited. Current trends in high strength materials application are reviewed with particular emphasis on the manner in which fracture toughness and structural efficiency may affect the material selection process. General fracture control procedures are reviewed in depth with specific reference to the impact of inspectability, structural arrangement and material on proposed analysis requirements for safe crack growth. The relative impact on allowable design stress is indicated by example. Design criteria, material and analysis requirements for implementation of fracture control procedures are reviewed together with limitation in current available data techniques. A summary of items which require further study and attention is presented.
Author: Yool Kim
Publisher: Rand Corporation
ISBN: 0833038621
Category : History
Languages : en
Pages : 127
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Book Description
The average age of aircraft in the U.S. Air Force is 22, making aging an increasing concern. The Air Force program responsible for maintaining the structural safety of its aircraft faces challenges, however, such as budgetary pressures, regulations, and communication issues. The authors sought insights on these issues by comparing similar programs in other services. Their observations suggest the value of clear policies, independent assessments, standard metrics, and open and clear communication.
Author: Rhys Jones
Publisher: Butterworth-Heinemann
ISBN: 008100544X
Category : Technology & Engineering
Languages : en
Pages : 972
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Book Description
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
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 440
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Book Description
Author: Nicholas Perrone
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 744
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Book Description
Author: Luigi Garibaldi
Publisher: Trans Tech Publications Ltd
ISBN: 303813130X
Category : Technology & Engineering
Languages : en
Pages : 698
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Book Description
Proceedings of the 7th International Conference on Damage Assessment of Structures (DAMAS 2007), Torino, Italy, 25th to 27th June 2007
Author: Defense Documentation Center (U.S.)
Publisher:
ISBN:
Category : Airframes
Languages : en
Pages : 312
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Book Description
Author:
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 636
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Book Description
Author: L.W. Masters
Publisher: Springer Science & Business Media
ISBN: 9400951256
Category : Technology & Engineering
Languages : en
Pages : 289
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Book Description
Degradation, the chemical/physical response of building and con struction materials exposed to in-service environments, must be predicted prior to their installation in structures if materials are to be effectively selected, used and maintained. These assessments of materials degradation require that methods be available to aid prediction of service life. The objectives of building materials science are a) to charac terize and categorize materials, b) to predict, preferably in a mathematical sense, material or component response including expected service life, and c) to make improvements in material response through improvements in design, formulation, processing or specification. For building and construction materials, continued progress has been made towards objective (a), but little progress has been made towards objectives (b) and (c). Of these, the mathematical prediction of service life appears to be of greater importance, because, if general approaches or models having application to a wide range of building and construction materials can be identi fied, then the categorization, selection, use and improvement of materials can proceed in a systematic manner. Researchers in advanced technologies, such as aerospace, nuclear, electronics and medicine, have apparently been more successful than researchers in building and construction technology in responding to the need for reliable predictions of service life.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 580
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Book Description
