Download or read book USAF Durability Design Handbook written by S. D. Manning and published by . This book was released on 1984 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first edition of the Durability Design Handbook. Objectives of this handbook are to: 1) summarize and interpret the essential USAF durability design requirements for metallic airframes; 2) provide durability analysis criteria for economic life and durability-critical parts; 3) provide state-of-the-art durability analysis concepts and methods for determining the initial fatigue quality of fastener holes, the probability of distribution of service time to reach any specified crack size; 4) provide guidelines and design data for implementing the durability methodology and for assisting contractor and USAF personnel in complying with the intent of the durability specifications for metallic airframes. This document, loosely called a "Handbook", provides guidelines, concepts, analytical tools, and the framework for incorporating future durability methodology advancements and design data.
Download or read book USAF Durability Design Handbook written by S. D. Manning and published by . This book was released on 1989 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the second edition of the Durability Design Handbook for metallic airframes. In the first edition of the handbook the probabilistic-based durability analysis methodology was limited to relatively small fatigue cracks (e.g., plus or minus 0.1") associated with functional impairment due to excessive cracking. The original durability analysis methodology has been refined and extended to also cover large through-the-thickness cracks (e.g., 0.5" to 0.75") associated with functional impairment due to fuel leaks and ligament breakage. Objectives of this handbook are to: 1) summarize and interpret the essential USAF durability design requirements for metallic airframes; 2) provide durability analysis criteria for economic life and durability-critical parts; 3) provide state-of-the-art durability analysis concepts and methods for determining the initial fatigue quality of fastener holes, the probability of distribution of service time to reach any specified crack size; 4) provide guidelines and design data for implementing the durability methodology and for assisting contractor and USAF personnel in complying with the intent of the durability specifications for metallic airframes
Download or read book USAF Durability Design Handbook written by S. D. Manning and published by . This book was released on 1984 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the second edition of the Durability Design Handbook for metallic airframes. In the first edition of the handbook the probabilistic-based durability analysis methodology was limited to relatively small fatigue cracks (e.g., plus or minus 0.1") associated with functional impairment due to excessive cracking. The original durability analysis methodology has been refined and extended to also cover large through-the-thickness cracks (e.g., 0.5" to 0.75") associated with functional impairment due to fuel leaks and ligament breakage. Objectives of this handbook are to: 1) summarize and interpret the essential USAF durability design requirements for metallic airframes; 2) provide durability analysis criteria for economic life and durability-critical parts; 3) provide state-of-the-art durability analysis concepts and methods for determining the initial fatigue quality of fastener holes, the probability of distribution of service time to reach any specified crack size; 4) provide guidelines and design data for implementing the durability methodology and for assisting contractor and USAF personnel in complying with the intent of the durability specifications for metallic airframes.
Download or read book Durability Methods Development written by S. D. Manning and published by . This book was released on 1979 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: A summary is presented of an analytical methodology developed to meet USAF durability requirements. Details are given in four companion volumes. Analytical approaches that are currently used or have potential to be used to determine economic life are surveyed. Results of a structural survey of durability problems experienced at USAF ALC's are summarized. Durability critical parts criteria and economic life criteria are discussed. An analytical method to determine the crack population in a structure as a function of service time is presented. Fastener-hole cracking is the basic form of damage analyzed. Representations of initial quality and growth of small cracks are discussed. The effect of inspection and repair on the distribution of cracks is included.
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 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 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 Durability Methods Development written by S. D. Manning and published by . This book was released on 1979 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: A critical evaluation of three analytical approaches is made to determine their applicability and/or potential for analytically assuring airframe durability during the design stage. A suitable analytical format for quantifying durability damage is developed based on U.S. Air Force durability design specifications and durability analysis needs. Air Force durability requirements are briefly reviewed and discussed. Three potential approaches for durability damage analysis are conceptually evaluated and discussed: (1) Conventional Fatigue Analysis (Palmgren-Miner Rule); (2) Deterministic Crack Growth Approach; and (3) Probabilistic Crack Growth Approach. The resulting evaluation provides the prerequisite work needed to develop a durability analysis methodology. The probabilistic crack growth approach is found to be the most promising for developing the durability analysis methodology under Phase I.
Download or read book USAF Damage Tolerant Design Handbook written by J. P. Gallagher and published by . This book was released on 1984 with total page 0 pages. Available in PDF, EPUB and Kindle. Book 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.
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 Scientific and Technical Aerospace Reports written by and published by . This book was released on 1989 with total page 1134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book SSC written by United States. Ship Structure Committee and published by . This book was released on 1992 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Durability Methods Development written by J. N. Yang and published by . This book was released on 1979 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: A statistically-based durability analysis methodology is evaluated, refined and demonstrated in this report for advanced metallic airframes. This methodology can be used to: (1) analytically assure the U.S. Air Force's durability design requirements, (2) evaluate durability design tradeoffs, and (3) evaluate structural maintenance requirements and user options affecting life-cycle costs. The methodology accounts for initial fatigue quality, crack growth accumulation in a population of structural details, load spectra and structural properties. Analytical procedures and guidelines are developed and described for quantifying the extent of damage due to fatigue cracking in structural details as a function of service time and design variables. An initial fatigue quality model is described and discussed. This model is based on the time-to-crack-initiation (TTCI) and the equivalent initial flaw size (EIFS) concepts and a deterministic crack growth power law. An experimental test program and the resulting fractographic data for cracks in clearance-fit fastener holes are described and discussed.
Download or read book USAF Damage Tolerant Design Handbook Guidelines for the Analysis and Design of Damage Tolerant Aircraft Structures Revision B written by and published by . This book was released on 1984 with total page 1334 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook supports the USAF Airplane Damage Tolerance Requirements contained in MIL-A-83444. 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. The material contained in this document is general enough to be useful in the evaluation of the damage tolerance of in-service aircraft designed and qualified prior to the issuance of MIL-A-83444. The handbook has been structured to provide a clear and concise summary of the specification, MIL-A-83444, as well as supporting analysis methods, test techniques, and nondestructive inspection (NDI) methods are provided as state-of-the-art along with suggested and/or recommended practices, limitations, etc. For the convenience of the user, copies of appropriate USAF structural specifications are contained as an appendix to this handbook.
Download or read book Probabilistic Methods in the Mechanics of Solids and Structures written by S. Eggwertz and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: The IUTAM Symposium on Probabilistic Methods in the Mechanics of Solids and Structures, dedicated to the memory of Waloddi Weibull, was held in Stockholm, Sweden, June 19-21, 1984, on the initiative of the Swedish National Committee for Mech anics and the Aeronautical Research Institute of Sweden, FFA. The purpose of the symposium was to bring together mathema ticians that develop the theory of stochastic processes and methods for reliability analysis, with engineers that apply these theories and methods to model loads, strengths and structures for the advancement of structural safety. Waloddi Weibull was a pioneer in this field with his many publi cations from the thirties until his death in 1979. He also took an active part in the formation of the International Union of Theoretical and Applied Mechanics during the forties, and subsequently initiated foundation of the Swedish National Committee for Mechanics, through which Sweden joined IUTAM as a member. 116 participants from 21 countries attended the symposium, and 55 invited papers were presented in 7 scientific sessions.
Download or read book Advances in Fatigue Lifetime Predictive Techniques written by Michael R. Mitchell and published by ASTM International. This book was released on 1992 with total page 495 pages. Available in PDF, EPUB and Kindle. Book excerpt: Twenty-seven papers from fatigue researchers and practitioners review in detail recent progress in the development of methods to predict fatigue performance of materials and structures and to assess the extent to which these new methods are finding their way into practice. The papers, from the ASTM
Download or read book Fatique and Fracture Mechanics written by Gary R. Halford and published by ASTM International. This book was released on 2000 with total page 551 pages. Available in PDF, EPUB and Kindle. Book excerpt:
