Download or read book Damage Tolerance of Metallic Aircraft Structures written by Sérgio M. O. Tavares and published by Springer. This book was released on 2018-08-06 with total page 106 pages. Available in PDF, EPUB and Kindle. Book 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.
Download or read book Damage Tolerance of Metallic Aircraft Structures written by Sérgio M. O. Tavares and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book USAF Damage Tolerant Design Handbook written by and published by . This book was released on 1984 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Damage Tolerance of Metallic Structures written by J. B. Chang and published by ASTM International. This book was released on 1984 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Damage Tolerance in Aircraft Structures written by M. S. Rosenfeld and published by ASTM International. This book was released on 1971-03 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book USAF Damage Tolerant Design Handbook written by and published by . This book was released on 1984 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Damage Tolerance in Aircraft Structures written by American Society for Testing and Materials and published by ASTM International. This book was released on 1971 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aircraft Sustainment and Repair written by Rhys Jones and published by Butterworth-Heinemann. This book was released on 2017-12-15 with total page 970 pages. Available in PDF, EPUB and Kindle. Book 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
Download or read book USAF Damage Tolerant Design Handbook written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Long Life Design and Test Technology of Typical Aircraft Structures written by Jun Liu and published by Springer. This book was released on 2018-05-21 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses anti-fatigue manufacturing, analysis and test verification technologies for typical aircraft structures, including fastening holes, shot peening plates, different types of joints and wing boxes. Offering concrete solutions to practical problems in aircraft engineering, it will benefit researchers and engineers in the fields of Aerospace Technology and Astronautics.
Download or read book Bonded Repair of Aircraft Structures written by A. Baker and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 224 pages. Available in PDF, EPUB and Kindle. Book 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.
Download or read book Design Manual for Impact Damage Tolerant Aircraft Structure written by and published by . This book was released on 1981 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Manual presents a methodology for integrating projectile impact damage tolerance into aircraft structural design. The information is presented in three sections: (1) Description of Projectile Threats; (2) Analysis Methods for Predicting Structural Response to Projectile Impact; and (3) Design Guidelines for Impact Tolerance. This report has been prepared at the request of the Structures and Materials Panel of AGARD.
Download or read book New Materials for Next Generation Commercial Transports written by Committee on New Materials for Advanced Civil Aircraft and published by National Academies Press. This book was released on 1996-03-29 with total page 99 pages. Available in PDF, EPUB and Kindle. Book 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.
Download or read book Advanced Durability and Damage Tolerance Design and Analysis Methods for Composite Structures Lessons Learned from NASA Technology Development Programs written by Charles E. Harris and published by . This book was released on 2003 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Damage tolerance investigations of innovative metallic airframe structures written by Sascha Häusler and published by Cuvillier Verlag. This book was released on 2011-06-10 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: The continuously expanding commercial air traffic of the last decades steadily increased the demand for highly efficient aircraft which offer extended operation times while reducing costs and environmental impact at the same time. The associated design requirements for reduced structural weight and improved fatigue life represent the major challenges for todays aircraft structures and have significantly intensified the competition between metallic and composite airframe applications. New metallic design concepts try to face this competition by combining latest materials and innovative manufacturing methods, like high speed machining, laser beam welding or friction stir welding, which allows for possible savings with respect to structural weight and manufacturing costs. However, due to their integral characteristics, the damage tolerance behaviour of these new designs is generally inferior to the common differential design. Reliable estimations on the fatigue life of integrally stiffened structures consequently necessitate assessment methodologies that are capable to include additional manufacturing influences and offer numerical efficiency in order to be practical for parametric studies during airframe design. Therefore, the development and enhancement of simulation methods for efficient and reliable evaluation of cracks and crack growth represents the main objective of this thesis. Two simulation methods are implemented and investigated for this purpose, that are based on different approaches and intended for distinct applications. One method is based on analytical stress function expressions and enables a very efficient evaluation of the complete fatigue crack growth life of cracked airframe structures. The proposed approach in this context is generally based on plane assumptions and limited to pure mode I crack loading. In order to be able to additionally consider crack turning under mixed mode loading, a second simulation method is presented which implements an extended finite element framework for a mesh independent representation of cracks in two dimensions. The additional combination with the material force concept, as alternative crack state parameter, allows for automated simulations of crack growth under mixed mode loading without any need for remeshing operations. Both simulation methods are validated based on different crack configurations and are applied for crack growth investigations of varying configurations of integrally stiffened panels under pure mode I and mixed mode loading conditions. In this context, a special focus is set on the influences of additional internal stresses that follow either from the applied manufacturing processes or an intentional prestressing of the stiffeners. Despite the general limitation to plane considerations, the proposed methods show a good accordance with experimental, theoretical and alternative numerical results. This demonstrates their capabilities to simulate fatigue crack growth and crack turning in integrally stiffened airframe structures and motivates further research with respect to a possible extension to three-dimensional problems.
Download or read book Durability of Metal Aircraft Structures written by Satya N. Atluri and published by . This book was released on 1992 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fibre Metal Laminates written by Ad Vlot and published by Springer Science & Business Media. This book was released on 2001-09-30 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: Like New, No Highlights,No Markup,all pages are intact.
