Download or read book Cracks at Structural Holes written by and published by . This book was released on 1975 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cracks at Structural Holes written by David Broek and published by . This book was released on 1975 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report reviews the state of the art of dealing with cracks at holes in engineering structures. The problem of interaction of cracks and holes is considered in its broadest sense. The usefulness of existing analysis and their limitation are discussed. Also surveyed are problems worthy of future research effort.

Download or read book Cracks Ar Structural Holes written by David Broek and published by . This book was released on 1975 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Structural Integrity of Fasteners written by Pir M. Toor and published by ASTM International. This book was released on 2000 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Practical Fracture Mechanics in Design written by Alexander Blake and published by CRC Press. This book was released on 1996-01-02 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emphasizing a balanced approach to design that integrates fracture mechanics, materials science and stress analysis, this work explains the fundamentals of fracture and provides clear definitions, basic formulas and worked examples. Case studies highlight fracture mechanics parameters of particular materials and hands-on stress analysis techniques.

Download or read book Practical Fracture Mechanics in Design written by Arun Shukla and published by CRC Press. This book was released on 2004-12-14 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt: Theoretical treatments of fracture mechanics abound in the literature. Among the first books to address this vital topic from an applied standpoint was the first edition of Practical Fracture Mechanics in Design. Completely updated and expanded to reflect recent developments in the field, the second edition of this valuable reference concisely revi

Download or read book Distortion induced Fatigue Cracking in Steel Bridges written by John W. Fisher and published by Transportation Research Board. This book was released on 1990 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of the Crack Growth Gage Concept as an Individual Aircraft Tracking Device written by F. J. Giessler and published by . This book was released on 1983 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: An analytical and experimental program was conducted to evaluate the crack growth gage concept for application as an individual aircraft tracking device. Three gage designs were evaluated. Volume I discusses the evaluation of two versions of a stepped thickness gage and a stepped width gage. Volume II discusses the evaluation of a side-grooved constant thickness gage. An analytical evaluation of the change in transfer function corresponding to gage design parameter changes was performed to determine the configuration of the gages to be tested. Initial spectrum tests were conducted on the first stepped gage design to determine the ranking ability of the gage. Then constant amplitude tests were conducted on the second stepped gage design. A modification of the gage was made to improve spectrum test response. The modified gage was subjected to both constant amplitude testing and spectrum testing. The analytically derived crack growth rates were compared to the test data. In general, the analysis predicted slightly higher growth rates than observed.

Download or read book Part Through Crack Fatigue Life Prediction written by J. B. Chang and published by ASTM International. This book was released on 1979 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stress Intensity Factors for a Cracked Hole in a Row of Holes written by D. P. Rooke and published by . This book was released on 1977 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: The compounding technique of obtaining stress intensity factors is applied to cracks at the edge of one hole in a row of periodically spaced holes. The cracks (one or two) lie along the line of holes and perpendicular to the uniform stress which is applied remote from the holes. This configuration models cracks at rivet holes in airframe structures reinforced with riveted stiffeners, if there is little in-plane load-transfer through the rivets. A particular feature of the solution is high accuracy of the results at short crack lengths - a necessary requirement for the reliable estimation of the lifetimes of growing cracks. (Author).

Download or read book Elementary engineering fracture mechanics written by D. Broek and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: When asked to start teaching a course on engineering fracture mechanics, I realized that a concise textbook, giving a general oversight of the field, did not exist. The explanation is undoubtedly that the subject is still in a stage of early development, and that the methodologies have still a very limited applicability. It is not possible to give rules for general application of fracture mechanics concepts. Yet our comprehension of cracking and fracture beha viour of materials and structures is steadily increasing. Further developments may be expected in the not too distant future, enabling useful prediction of fracture safety and fracture characteristics on the basis of advanced fracture mechanics procedures. The user of such advanced procedures m\lst have a general understanding of the elementary concepts, which are provided by this volume. Emphasis was placed on the practical application of fracture mechanics, but it was aimed to treat the subject in a way that may interest both metallurgists and engineers. For the latter, some general knowledge of fracture mechanisms and fracture criteria is indispensable for an apprecia tion of the limita tions of fracture mechanics. Therefore a general discussion is provided on fracture mechanisms, fracture criteria, and other metal lurgical aspects, without going into much detail. Numerous references are provided to enable a more detailed study of these subjects which are still in a stage of speculative treatment.

Download or read book Analysis and Prediction of Multiple Site Damage MSD Fatigue Crack Growth written by D. S. Dawicke and published by . This book was released on 1992 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Maintenance Safety Risk Management and Life Cycle Performance of Bridges written by Nigel Powers and published by CRC Press. This book was released on 2018-07-04 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges contains lectures and papers presented at the Ninth International Conference on Bridge Maintenance, Safety and Management (IABMAS 2018), held in Melbourne, Australia, 9-13 July 2018. This volume consists of a book of extended abstracts and a USB card containing the full papers of 393 contributions presented at IABMAS 2018, including the T.Y. Lin Lecture, 10 Keynote Lectures, and 382 technical papers from 40 countries. The contributions presented at IABMAS 2018 deal with the state of the art as well as emerging concepts and innovative applications related to the main aspects of bridge maintenance, safety, risk, management and life-cycle performance. Major topics include: new design methods, bridge codes, heavy vehicle and load models, bridge management systems, prediction of future traffic models, service life prediction, residual service life, sustainability and life-cycle assessments, maintenance strategies, bridge diagnostics, health monitoring, non-destructive testing, field testing, safety and serviceability, assessment and evaluation, damage identification, deterioration modelling, repair and retrofitting strategies, bridge reliability, fatigue and corrosion, extreme loads, advanced experimental simulations, and advanced computer simulations, among others. This volume provides both an up-to-date overview of the field of bridge engineering and significant contributions to the process of more rational decision-making on bridge maintenance, safety, risk, management and life-cycle performance of bridges for the purpose of enhancing the welfare of society. The Editors hope that these Proceedings will serve as a valuable reference to all concerned with bridge structure and infrastructure systems, including students, researchers and engineers from all areas of bridge engineering.

Download or read book Modeling the Formation and Growth of Cracks from Cold Worked Holes written by WT. Fujimoto and published by . This book was released on 2006 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: First generation crack formation and crack growth predictive approaches for cold-worked holes--based on the growth of a single noninteracting crack in a stationary residual stress field--fail to account fully for the physical mechanisms by which cracks form and grow from cold-worked holes. This filure leads in many cases to large differences between predicted and actual lives. Factors not accounted for in first generation approaches include the following: 1. 3-D nature of residual stress field due to mandrel pull-through. 2. Multistage crack growth involving a progressively spreading system of cracks. 3. Multiple potential initial crack sites, and the effect of site upon the multistage crack growth path. 4. Relaxation of the residual stress field due to overloads/underloads, or due to cyclic reyielding from crack growth. 5. Interaction of the hole with adjacent structural elements for multilayer joints. A physics-based second generation methodology for accounting for these factors is described. This methodology separates into individual building blocks each of the various mechanisms controlling the formation and relaxation of residual stresses, and the nucleation and progression of a system of cracks. Because it explicitly models each of these mechanisms, it is capable of eliminating or reducing the uncertainty over the life improvement potential of the cold-working process, allowing the full potential of cold-working to alleviate the aging aircraft problem to be untapped.

Download or read book Stress Intensity Factors for Cracks in Panels with Uniformly Spaced Holes written by Robert H. Dodds and published by . This book was released on 1985 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Part Through Crack Problems in Aircraft Structures written by TM. Hsu and published by . This book was released on 1979 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flaws occur in aircraft structures due to material and structural manufacturing and processing operations. The most prevalent sources of cracking in aircraft structures are fastener holes, although cracking does occur at locations other than fastener holes (for example, surface cracks). This paper presents a discussion of the most common types of flaws which exist in aircraft structures and the test data and analytical criteria needed to predict their growth. A number of special analytical and structural considerations are discussed such as small flaws, cold-worked holes, plasticity effects, failure criteria, and multiple flaw sites. The analytical crack growth and residual strength requirements which must be met as well as the initial flaw sizes and shapes which must be assumed in the Air Force damage tolerance design requirements (MIL-A-83444) are presented. Recently developed stress intensity factor solutions for quarter elliptical corner cracks emanating from various types of fastener holes are presented. Predictions using these current solutions are correlated with other approximate solutions as well as experimental test data.

Download or read book Forensic Structural Engineering Handbook written by Robert Ratay and published by McGraw Hill Professional. This book was released on 2009-11-05 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Most Complete and Up-to-Date Resource on Forensic Structural Engineering Thoroughly revised and featuring contributions from leading experts, this definitive handbook offers comprehensive treatment of forensic structural engineering and expert witness delivery. From exploring the possible origins of errors, through investigating and analyzing failures, to working with the legal profession for assigning responsibilities, Forensic Structural Engineering Handbook, Second Edition covers every important topic in the field. The design and construction process Design and construction safety codes, standards, and regulations Standard of care and duty to perform First steps and legal concerns after a failure Engineering investigation of failures Origins and causes of failures Loads and hazards Design errors, construction defects, and project miscommunication Defects, deterioration, and durability Mechanisms and analyses of failures in steel, concrete, masonry, timber, and temporary structures; building envelope; and structural foundations Litigation and dispute resolution The expert consultant and witness