Remaining Fatigue Life Analysis

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Fatigue Life Analyses of Welded Structures

Author : Tom Lassen
Publisher : John Wiley & Sons
ISBN 13 : 1118614704
Total Pages : 442 pages
Book Rating : 4.1/5 (186 download)

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Book Synopsis Fatigue Life Analyses of Welded Structures by : Tom Lassen

Download or read book Fatigue Life Analyses of Welded Structures written by Tom Lassen and published by John Wiley & Sons. This book was released on 2013-03-01 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: Avoiding or controlling fatigue damage is a major issue in the design and inspection of welded structures subjected to dynamic loading. Life predictions are usually used for safe life analysis, i.e. for verifying that it is very unlikely that fatigue damage will occur during the target service life of a structure. Damage tolerance analysis is used for predicting the behavior of a fatigue crack and for planning of in-service scheduled inspections. It should be a high probability that any cracks appearing are detected and repaired before they become critical. In both safe life analysis and the damage tolerance analysis there may be large uncertainties involved that have to be treated in a logical and consistent manner by stochastic modeling. This book focuses on fatigue life predictions and damage tolerance analysis of welded joints and is divided into three parts. The first part outlines the common practice used for safe life and damage tolerance analysis with reference to rules and regulations. The second part emphasises stochastic modeling and decision-making under uncertainty, while the final part is devoted to recent advances within fatigue research on welded joints. Industrial examples that are included are mainly dealing with offshore steel structures. Spreadsheets which accompany the book give the reader the possibility for hands-on experience of fatigue life predictions, crack growth analysis and inspection planning. As such, these different areas will be of use to engineers and researchers.

Estimating the Remaining Fatigue Life of Steel Bridges Using Field Measurements

Author : Jeremiah David Fasl
Publisher :
ISBN 13 :
Total Pages : 676 pages
Book Rating : 4.:/5 (852 download)

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Book Synopsis Estimating the Remaining Fatigue Life of Steel Bridges Using Field Measurements by : Jeremiah David Fasl

Download or read book Estimating the Remaining Fatigue Life of Steel Bridges Using Field Measurements written by Jeremiah David Fasl and published by . This book was released on 2012 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt: As bridges continue to age and budgets reduce, transportation officials often need quantitative data to distinguish between bridges that can be kept safely in service and those that need to be replaced or retrofitted. One of the critical types of structural deterioration for steel bridges is fatigue-induced fracture, and evaluating the daily fatigue damage through field measurements is one means of providing quantitative data to transportation officials. When analyzing data obtained through field measurements, methods are needed to properly evaluate fatigue damage. Five techniques for evaluating strain data were formalized in this dissertation. Simplified rainflow counting, which converts a stress history into a histogram of stress cycles, is an algorithm standardized by ASTM and the first step of a fatigue analysis. Two methods, effective stress range and index stress range, for determining the total amount of fatigue damage during a monitoring period are presented. The effective stress range is the traditional approach for determining the amount of damage, whereas the index stress range is a new method that was developed to facilitate comparisons of fatigue damage between sensors and/or bridges. Two additional techniques, contribution to damage and cumulative damage, for visualizing the data were conceived to allow an engineer to characterize the spectrum of stress ranges. Using those two techniques, an engineer can evaluate whether lower stress cycles (concern due to electromechanical noise from data acquisition system) and higher stress ranges (concern due to possible spike from data acquisition system) contribute significantly to the accumulation of damage in the bridge. Data from field measurements can be used to improve the estimate of the remaining fatigue life. Deterministic and probabilistic approaches for calculating the remaining fatigue life were considered, and three methods are presented in this dissertation. For deterministic approaches, the output of the equations is the year when the fatigue life has been exceeded for a specific probability of failure, whereas for probabilistic approaches, the probability of failure for a given year is calculated. Four different steel bridges were instrumented and analyzed according to the techniques outlined in this dissertation.

Metal Fatigue Analysis Handbook

Author : Yung-Li Lee
Publisher : Elsevier
ISBN 13 : 0123852048
Total Pages : 634 pages
Book Rating : 4.1/5 (238 download)

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Book Synopsis Metal Fatigue Analysis Handbook by : Yung-Li Lee

Download or read book Metal Fatigue Analysis Handbook written by Yung-Li Lee and published by Elsevier. This book was released on 2011-08-17 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understand why fatigue happens and how to model, simulate, design and test for it with this practical, industry-focused reference Written to bridge the technology gap between academia and industry, the Metal Fatigue Analysis Handbook presents state-of-the-art fatigue theories and technologies alongside more commonly used practices, with working examples included to provide an informative, practical, complete toolkit of fatigue analysis. Prepared by an expert team with extensive industrial, research and professorial experience, the book will help you to understand: Critical factors that cause and affect fatigue in the materials and structures relating to your work Load and stress analysis in addition to fatigue damage-the latter being the sole focus of many books on the topic How to design with fatigue in mind to meet durability requirements How to model, simulate and test with different materials in different fatigue scenarios The importance and limitations of different models for cost effective and efficient testing Whilst the book focuses on theories commonly used in the automotive industry, it is also an ideal resource for engineers and analysts in other disciplines such as aerospace engineering, civil engineering, offshore engineering, and industrial engineering. The only book on the market to address state-of-the-art technologies in load, stress and fatigue damage analyses and their application to engineering design for durability Intended to bridge the technology gap between academia and industry - written by an expert team with extensive industrial, research and professorial experience in fatigue analysis and testing An advanced mechanical engineering design handbook focused on the needs of professional engineers within automotive, aerospace and related industrial disciplines

Fatigue Life of Riveted Steel Bridges

Author : Björn Åkesson
Publisher : CRC Press
ISBN 13 : 0203847768
Total Pages : 170 pages
Book Rating : 4.2/5 (38 download)

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Book Synopsis Fatigue Life of Riveted Steel Bridges by : Björn Åkesson

Download or read book Fatigue Life of Riveted Steel Bridges written by Björn Åkesson and published by CRC Press. This book was released on 2010-04-21 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many old riveted railway bridges are replaced too soon due to a general lack of knowledge about the expected life span. This indicates the need for more information on fatigue and brittle fracture of riveted bridges. This book unveils extensive research and literature results on riveted bridges' fatigue live and shows how to take fatigue properly i

Evaluation of Remaining Fatigue Life for Riveted Truss Bridges

Author :
Publisher :
ISBN 13 :
Total Pages : 14 pages
Book Rating : 4.:/5 (614 download)

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Book Synopsis Evaluation of Remaining Fatigue Life for Riveted Truss Bridges by :

Download or read book Evaluation of Remaining Fatigue Life for Riveted Truss Bridges written by and published by . This book was released on 1998 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: The remaining fatigue life of riveted structures is a topic of considerable importance, particularly for owners of bridges. Improved methods for the estimation of the actual fatigue life of such structures are required in order to make their continued safe use possible while at the same time avoiding the expense of unnecessary repairs. To evaluate fatigue life expectancy of a structural detail, it is necessary to obtain an accurate estimate of the stress history. Two analytical models are assessed through comparison with measured strains taken from a bridge in service. The results illustrate that a simple model with pinned connections is adequate for the determination of stresses in truss members and that more advance analysis methods give only marginal increases in accuracy. Stressed in the floor system are most accurately predicted by a model that has full bending moment continuity between connected members. Standard and advanced methods of fatigue life evaluation are discussed and are then implemented in the evaluation of the remaining fatigue life for components of the bridge. Comparison with the actual fatigue life of the components, which were obtained from laboratory experiments, shows that both prediction methods give reasonable estimates of the fatigue life.

Fatigue Testing and Analysis

Author : Yung-Li Lee
Publisher : Elsevier
ISBN 13 : 0080477690
Total Pages : 417 pages
Book Rating : 4.0/5 (84 download)

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Book Synopsis Fatigue Testing and Analysis by : Yung-Li Lee

Download or read book Fatigue Testing and Analysis written by Yung-Li Lee and published by Elsevier. This book was released on 2011-04-18 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fatigue Testing and Analysis: Theory and Practice presents the latest, proven techniques for fatigue data acquisition, data analysis, and test planning and practice. More specifically, it covers the most comprehensive methods to capture the component load, to characterize the scatter of product fatigue resistance and loading, to perform the fatigue damage assessment of a product, and to develop an accelerated life test plan for reliability target demonstration. This book is most useful for test and design engineers in the ground vehicle industry. Fatigue Testing and Analysis introduces the methods to account for variability of loads and statistical fatigue properties that are useful for further probabilistic fatigue analysis. The text incorporates and demonstrates approaches that account for randomness of loading and materials, and covers the applications and demonstrations of both linear and double-linear damage rules. The reader will benefit from summaries of load transducer designs and data acquisition techniques, applications of both linear and non-linear damage rules and methods, and techniques to determine the statistical fatigue properties for the nominal stress-life and the local strain-life methods. Covers the useful techniques for component load measurement and data acquisition, fatigue properties determination, fatigue analysis, and accelerated life test criteria development, and, most importantly, test plans for reliability demonstrations Written from a practical point of view, based on the authors' industrial and academic experience in automotive engineering design Extensive practical examples are used to illustrate the main concepts in all chapters

Fatigue Testing and Analysis of Results

Author : W. Weibull
Publisher : Elsevier
ISBN 13 : 1483154165
Total Pages : 322 pages
Book Rating : 4.4/5 (831 download)

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Book Synopsis Fatigue Testing and Analysis of Results by : W. Weibull

Download or read book Fatigue Testing and Analysis of Results written by W. Weibull and published by Elsevier. This book was released on 2013-10-22 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fatigue Testing and Analysis of Results discusses fundamental concepts of fatigue testing and results analysis. The book begins with a description of the symbols and nomenclature selected for the present book, mainly those proposed by the ASTM Committee E-9 on Fatigue. Fatigue testing methods are then discussed including routine tests, short-life and long-life tests, cumulative-damage tests, and abbreviated and accelerated tests. Separate chapters cover fatigue testing machines and equipment; instruments and measuring devices; and test pieces used in fatigue testing. The factors affecting test results are considered, including material, types of stressing, test machine, environment, and testing technique. The final two chapters cover the planning of test programs and the presentation of results. Test program planning involves the statistical design of a test series; specification and sampling of test pieces; and choice of test pieces, testing machines, and test conditions. The chief purpose of most fatigue tests is the experimental determination of the relation between the endurance and the magnitude of the applied stress range for the material and the specimen under consideration, and final results can be condensed into a table, graph, or analytical expression.

Performance Assessment of Wisconsin's Whitetopping and Ultra-thin Whitetopping Projects

Author : Haifang Wen
Publisher :
ISBN 13 :
Total Pages : 136 pages
Book Rating : 4.:/5 (891 download)

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Book Synopsis Performance Assessment of Wisconsin's Whitetopping and Ultra-thin Whitetopping Projects by : Haifang Wen

Download or read book Performance Assessment of Wisconsin's Whitetopping and Ultra-thin Whitetopping Projects written by Haifang Wen and published by . This book was released on 2010 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Statistical Analysis of Fatigue Data

Author : R. E. Little
Publisher : ASTM International
ISBN 13 : 9780803107168
Total Pages : 156 pages
Book Rating : 4.1/5 (71 download)

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Book Synopsis Statistical Analysis of Fatigue Data by : R. E. Little

Download or read book Statistical Analysis of Fatigue Data written by R. E. Little and published by ASTM International. This book was released on 1981 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is commonly assumed in analysing fatigue data that there is a definite functional relationship between life in number of cycles and stress level. However, as has been pointed out several times (1, 2), an examination of the data shows considerable scatter. Even with carefully prepared smooth specimens, all from the same heat of steel, treated in the same manner and tested in the same laboratory, a range of 2 to 1 in number of cycles for failure at the same stress level is normal (1) and a range of 10 to 1 is not unusual (2). If the specimens are tested by different laboratories, slightly varying techniques will introduce further scatter (3).

Fatigue Evaluation of Steel Bridges

Author : Mark Douglas Bowman
Publisher : Transportation Research Board
ISBN 13 : 030925826X
Total Pages : 125 pages
Book Rating : 4.3/5 (92 download)

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Book Synopsis Fatigue Evaluation of Steel Bridges by : Mark Douglas Bowman

Download or read book Fatigue Evaluation of Steel Bridges written by Mark Douglas Bowman and published by Transportation Research Board. This book was released on 2012 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: "TRB's National Cooperative Highway Research Program (NCHRP) Report 721: Fatigue Evaluation of Steel Bridges provides proposed revisions to Section 7--Fatigue Evaluation of Steel Bridges of the American Association of State Highway and Transportation Officials Manual for Bridge Evaluation with detailed examples of the application of the proposed revisions."--Publisher's description.

Recent Developments In Bridge Engineering

Author : K.M. Mahmoud
Publisher : CRC Press
ISBN 13 : 9780203017876
Total Pages : 396 pages
Book Rating : 4.0/5 (178 download)

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Book Synopsis Recent Developments In Bridge Engineering by : K.M. Mahmoud

Download or read book Recent Developments In Bridge Engineering written by K.M. Mahmoud and published by CRC Press. This book was released on 2003-01-01 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains a selected number of papers that were presented at the Second New York City Bridge Conference organized by the Bridge Engineering Association. It represents the state-of-the-art papers from different countries on a wide spectrum of topics in bridge engineering.

Fatigue Life Prediction of Composites and Composite Structures

Author : Anastasios P. Vassilopoulos
Publisher : Woodhead Publishing
ISBN 13 : 0081025769
Total Pages : 766 pages
Book Rating : 4.0/5 (81 download)

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Book Synopsis Fatigue Life Prediction of Composites and Composite Structures by : Anastasios P. Vassilopoulos

Download or read book Fatigue Life Prediction of Composites and Composite Structures written by Anastasios P. Vassilopoulos and published by Woodhead Publishing. This book was released on 2019-10-08 with total page 766 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fatigue Life Prediction of Composites and Composite Structures, Second Edition, is a comprehensive review of fatigue damage and fatigue life modeling and prediction methodologies for composites and their use in practice. In this new edition, existing chapters are fully updated, while new chapters are introduced to cover the most recent developments in the field. The use of composites is growing in structural applications in many industries, including aerospace, marine, wind turbine and civil engineering. However, there are uncertainties about their long-term performance, including performance issues relating to cyclic fatigue loading that hinder the adoption of a commonly accepted credible fatigue design methodology for the life prediction of composite engineering structures. With its distinguished editor and international team of contributors, this book is a standard reference for industry professionals and researchers alike. Examines past, present and future trends associated with the fatigue life prediction of composite materials and structures Assesses novel computational methods for fatigue life modeling and prediction of composite materials under constant amplitude loading Covers a wide range of techniques for predicting fatigue, including their theoretical background and practical applications Addresses new topics and covers contemporary research developments in the field

Multi-Scale Modeling of Structural Concrete

Author : Koichi Maekawa
Publisher : CRC Press
ISBN 13 : 0203927206
Total Pages : 670 pages
Book Rating : 4.2/5 (39 download)

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Book Synopsis Multi-Scale Modeling of Structural Concrete by : Koichi Maekawa

Download or read book Multi-Scale Modeling of Structural Concrete written by Koichi Maekawa and published by CRC Press. This book was released on 2008-11-28 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt: Increases in computer power have now enabled engineers to combine materials science with structural mechanics in the design and the assessment of concrete structures. The techniques developed have become especially useful for the performance assessment of such structures under coupled mechanistic and environmental actions. This allows effective management of infrastructure over a much longer life cycle, thus satisfying the requirements for durability and sustainability. This ground-breaking new book draws on the fields of materials and structural mechanics in an integrated way to address the questions of management and maintenance. It proposes a realistic way of simulating both constituent materials and structural responses under external loading and under ambient conditions. Where the research literature discusses component or element technology related to performance assessment, this book uniquely covers the subject at the level of the whole system including soil foundation, showing engineers how to model changes in concrete structures over time and how to use this for decision making in infrastructure maintenance and asset management.

Tubular Structures XI

Author : JeffreyA. Packer
Publisher : Routledge
ISBN 13 : 1351406728
Total Pages : 710 pages
Book Rating : 4.3/5 (514 download)

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Book Synopsis Tubular Structures XI by : JeffreyA. Packer

Download or read book Tubular Structures XI written by JeffreyA. Packer and published by Routledge. This book was released on 2017-10-02 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt: This topical book contains the latest scientific and engineering developments in the field of tubular steel structures, as presented at the "11th International Symposium and IIW International Conference on Tubular Structures". The International Symposium on Tubular Structures (ISTS) has a long-standing reputation for being the principal showcase for manufactured tubing and the prime international forum for discussion of research, developments and applications in this field. Various key and emerging subjects in the field of hollow structural sections are covered, such as: novel applications and case studies, static and fatigue behaviour of connections/joints, concrete-filled and composite tubular members, earthquake resistance, specification and code developments, material properties and structural reliability, impact resistance and brittle fracture, fire resistance, casting and fabrication innovations. Research and development issues presented in this book are applicable to buildings, bridges, offshore structures, entertainment rides, cranes, towers and various mechanical and agricultural equipment. This book is thus a pertinent reference source for architects, civil and mechanical engineers, designers, steel fabricators and contractors, manufacturers of hollow sections or related construction products, trade associations involved with tubing, owners or developers of tubular structures, steel specification committees, academics and research students. The conference presentations herein include two keynote lectures (the International Institute of Welding Houdremont Lecture and the ISTS Kurobane Lecture), plus finalists in the CIDECT Student Papers Competition. The 11th International Symposium and IIW International Conference on Tubular Structures – ISTS11 – took place in Québec City, Canada from August 31 to September 2, 2006.

Low-cycle Fatigue and Life Prediction

Author : Claude Amzallag
Publisher : ASTM International
ISBN 13 :
Total Pages : 658 pages
Book Rating : 4./5 ( download)

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Book Synopsis Low-cycle Fatigue and Life Prediction by : Claude Amzallag

Download or read book Low-cycle Fatigue and Life Prediction written by Claude Amzallag and published by ASTM International. This book was released on 1982 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Exploitation of Structural Loads/health Data for Reduced Life Cycle Costs

Author : North Atlantic Treaty Organization. Applied Vehicle Technology Panel. Specialists' Meeting
Publisher :
ISBN 13 :
Total Pages : 258 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Exploitation of Structural Loads/health Data for Reduced Life Cycle Costs by : North Atlantic Treaty Organization. Applied Vehicle Technology Panel. Specialists' Meeting

Download or read book Exploitation of Structural Loads/health Data for Reduced Life Cycle Costs written by North Atlantic Treaty Organization. Applied Vehicle Technology Panel. Specialists' Meeting and published by . This book was released on 1998 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Failure Analysis in Engineering Applications

Author : Shin-Ichi Nishida
Publisher : Elsevier
ISBN 13 : 1483193772
Total Pages : 220 pages
Book Rating : 4.4/5 (831 download)

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Book Synopsis Failure Analysis in Engineering Applications by : Shin-Ichi Nishida

Download or read book Failure Analysis in Engineering Applications written by Shin-Ichi Nishida and published by Elsevier. This book was released on 2014-05-15 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Failure Analysis in Engineering Applications deals with equipment and machine design together with examples of failures and countermeasures to avoid such failures. This book analyzes failures in facilities or structures and the ways to prevent them from happening in the future. The author describes conventional terms associated with failure or states of failure including the strength of materials, as well as the procedure in failure analysis (materials used, design stress, service conditions, simulation, examination of results). The author also describes the mechanism of fatigue failure and prediction methods to estimate the remaining life of affected structures. The author cites some precautions to be followed in actual failure analysis such as detailed observation on the fracture site, removal of surface deposits (for example, rusts) without altering the fracture size or shape, The book gives examples of analysis of failure involving a crane head sheave hanger, wire rope, transmission shaft, environmental failure of fastening screws, and failures in rail joints. This book is intended for civil and industrial engineers, for technical designers or engineers involved in the maintenance of equipment, machineries, and structures.