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Author : United States. Congress. House. Committee on Science and Technology. Subcommittee on Transportation, Aviation, and Materials
Publisher : Unknown
Page : 80 pages
File Size : 41,8 Mb
Release : 1986
Category : Aeronautics
ISBN : UCR:31210024956789
Author : Anonim
Publisher : Unknown
Page : 190 pages
File Size : 44,5 Mb
Release : 1988
Category : Airframes
ISBN : UCBK:C101359442
Author : Sérgio M. O. Tavares,Paulo M. S. T. de Castro
Publisher : Springer
Page : 106 pages
File Size : 52,8 Mb
Release : 2018-08-06
Category : Technology & Engineering
ISBN : 9783319701905
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.
Author : Lorrie Molent
Publisher : Springer Nature
Page : 69 pages
File Size : 46,9 Mb
Release : 2024-01-23
Category : Technology & Engineering
ISBN : 9789819974689
Fatigue occurs under cyclic loading and can significantly degrade the operational capability and safety of metallic aircraft components and structures. This book provides summaries of some metallic aircraft structural integrity issues, innovative but established examples of maintaining operational capability—airworthiness, and assessments of safe in-service fatigue lives. These topics are based on a through-life fatigue management philosophy that ensures safe and continued operation, including during life extensions that are almost inevitably required. This philosophy is underpinned by observations of the behaviour of fatigue cracks in actual structures subjected to realistic service loading conditions. The book includes topics like aircraft design requirements, individual aircraft fatigue loads monitoring, airframe fatigue testing, sources of fatigue-nucleating discontinuities, and prediction of fatigue crack growth from these discontinuities. All these aspects contribute to discussing methods of assuring the structural integrity and operational capability of realistically cracked structures. The book also discusses the exponential behaviour of lead or dominant cracks—those leading to first failure—and the practical significance of differences between fatigue fracture topographies produced under constant amplitude and variable amplitude loading. The book can be a valuable reference for researchers and professionals interested in aircraft fatigue management and allied fields.
Author : United States. Congress. House. Committee on Science, Space, and Technology. Subcommittee on Transportation, Aviation, and Materials
Publisher : Unknown
Page : 100 pages
File Size : 44,8 Mb
Release : 1988
Category : Aeronautics
ISBN : PSU:000014320644
Author : Satya N. Atluri,Sam G. Sampath,Pin Tong
Publisher : Springer Science & Business Media
Page : 492 pages
File Size : 50,9 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9783642843648
The emergence of civil aviation as a means of mass transportation is primarily due to the large scale construction of jet airplanes in the past 30 years or so. A large number of these jet airplanes is currently operating at or beyond their designed fatigue lives. Thus, the structural integrity of these aging airplanes has become an issue of major concern to all nations of the world. To bring the needed technical and research focus on the issues involved in the life-enhancement and safety-assurance of aging airplanes, the Federal Aviation Administration sponsored a symposium in Atlanta, GA, USA, during 20-22 March 1990. This symposium, under the title "International Symposium on Structural Integrity of Aging Airplanes· was organized jointly be the Georgia Institute of Technology (Center for Computational Mechanics) and the Transportation Systems Center (Cambridge, MA) of the U.S. Department of Transportation. Industrial and academic experts from several countries in North America, Europe and Asia, were invited to discuss their experiences and proposed solutions. This monograph contains the original papers that represent the expanded and edited versions of the talks presented at this symposium. This book aims to bring the collective experience, from across the world, with problems related to the structural integrity of aging airplanes to the attention of the professional and research community at large - in the hope that it may stimulate further fruitful research on this important topic of global concern.
Author : Eldad Ben-Yosef
Publisher : Springer Science & Business Media
Page : 295 pages
File Size : 47,8 Mb
Release : 2005-10-24
Category : Business & Economics
ISBN : 9780387242422
For over three decades the airline industry has continued to maintain a high profile in the public mind and in public policy interest. This high profile is probably not surprising. There does seem to be something inherently newsworthy about airplanes and the people and companies that fly them. The industry was one of the first major industries in the United States to undergo deregulation, in 1978. It thereby transitioned from a closely regulated sector (the former Civil Aeronautics Board tightly controlled everyt thing from prices to routes to entry) to one that is largely market oriented. The incumbent carriers transformed themselves from the point-to-point operators that the CAB had required to the hub-and-spokes structures that took better advantage of their network characteristics. Further, they transformed their pricing from the quite simple structures that the CAB had required to the highly differentiated/segmented pricing structures (“yield management”) that reached an apogee in the late 1990s. Some ca arriers, like American, Delta, and United, were better at this transition; others, like Pan American, TWA, and Eastern, were not. What the incumbent carriers did not do, however, was deal with their costly wage and work rules structures, which were an enduring legacy of their regulatory period. This legacy, when combined with the high-fare end of the yield-management pricing structure, has made them vulnerable to entry by new carriers with lower cost structures.
Author : Ian Milne,R. O. Ritchie,B.L. Karihaloo
Publisher : Elsevier
Page : 4647 pages
File Size : 51,7 Mb
Release : 2003-07-25
Category : Business & Economics
ISBN : 9780080490731
The aim of this major reference work is to provide a first point of entry to the literature for the researchers in any field relating to structural integrity in the form of a definitive research/reference tool which links the various sub-disciplines that comprise the whole of structural integrity. Special emphasis will be given to the interaction between mechanics and materials and structural integrity applications. Because of the interdisciplinary and applied nature of the work, it will be of interest to mechanical engineers and materials scientists from both academic and industrial backgrounds including bioengineering, interface engineering and nanotechnology. The scope of this work encompasses, but is not restricted to: fracture mechanics, fatigue, creep, materials, dynamics, environmental degradation, numerical methods, failure mechanisms and damage mechanics, interfacial fracture and nano-technology, structural analysis, surface behaviour and heart valves. The structures under consideration include: pressure vessels and piping, off-shore structures, gas installations and pipelines, chemical plants, aircraft, railways, bridges, plates and shells, electronic circuits, interfaces, nanotechnology, artificial organs, biomaterial prostheses, cast structures, mining... and more. Case studies will form an integral part of the work.
Author : United States. Congress. House. Committee on Science and Technology
Publisher : Unknown
Page : 384 pages
File Size : 47,7 Mb
Release : 1988
Category : Electronic
ISBN : PURD:32754082459482
Author : United States. Congress. House. Committee on Science and Technology. Subcommittee on Transportation, Aviation, and Materials
Publisher : Unknown
Page : 134 pages
File Size : 43,8 Mb
Release : 1986
Category : Aeronautics
ISBN : STANFORD:36105045599003
Author : United States. Congress. House. Committee on Science, Space, and Technology. Subcommittee on Transportation, Aviation, and Materials
Publisher : Unknown
Page : 152 pages
File Size : 55,6 Mb
Release : 1988
Category : Aeronautics
ISBN : PSU:000014318818
Author : United States. Congress. House. Committee on Science, Space, and Technology
Publisher : Unknown
Page : 388 pages
File Size : 50,8 Mb
Release : 1989
Category : Legislation
ISBN : STANFORD:36105119621741
Author : United States. Congress. House. Committee on Science, Space, and Technology
Publisher : Unknown
Page : 574 pages
File Size : 48,6 Mb
Release : 1988
Category : Astronautics and state
ISBN : UCLA:L0078993342
Author : Anonim
Publisher : Unknown
Page : 128 pages
File Size : 45,5 Mb
Release : 1987
Category : Government publications
ISBN : WISC:89013738158
Author : Anonim
Publisher : Unknown
Page : 1260 pages
File Size : 47,5 Mb
Release : 1987
Category : Government publications
ISBN : UIUC:30112063914284
