Fatigue Damage, Crack Growth and Life Prediction

Fatigue Damage, Crack Growth and Life Prediction PDF Author: F. Ellyin
Publisher: Springer Science & Business Media
ISBN: 9400915098
Category : Technology & Engineering
Languages : en
Pages : 470

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Book Description
Fatigue failure is a multi-stage process. It begins with the initiation of cracks, and with continued cyclic loading the cracks propagate, finally leading to the rupture of a component or specimen. The demarcation between the above stages is not well-defined. Depending upon the scale of interest, the variation may span three orders of magnitude. For example, to a material scientist an initiated crack may be of the order of a micron, whereas for an engineer it can be of the order of a millimetre. It is not surprising therefore to see that investigation of the fatigue process has followed different paths depending upon the scale of phenomenon under investigation. Interest in the study of fatigue failure increased with the advent of industrial ization. Because of the urgent need to design against fatigue failure, early investiga tors focused on prototype testing and proposed failure criteria similar to design formulae. Thus, a methodology developed whereby the fatigue theories were proposed based on experimental observations, albeit at times with limited scope. This type of phenomenological approach progressed rapidly during the past four decades as closed-loop testing machines became available.

Low-cycle Fatigue and Life Prediction

Low-cycle Fatigue and Life Prediction PDF Author: C. Amzallag
Publisher: ASTM International
ISBN:
Category : Aluminum alloys
Languages : en
Pages : 651

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Book Description


Fatigue Life Analyses of Welded Structures

Fatigue Life Analyses of Welded Structures PDF Author: Tom Lassen
Publisher: John Wiley & Sons
ISBN: 1118614704
Category : Technology & Engineering
Languages : en
Pages : 407

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Book Description
Avoiding or controlling fatigue damage is a major issue in thedesign and inspection of welded structures subjected to dynamicloading. Life predictions are usually used for safe life analysis,i.e. for verifying that it is very unlikely that fatigue damagewill occur during the target service life of a structure. Damagetolerance analysis is used for predicting the behavior of a fatiguecrack and for planning of in-service scheduled inspections. Itshould be a high probability that any cracks appearing are detectedand repaired before they become critical. In both safe lifeanalysis and the damage tolerance analysis there may be largeuncertainties involved that have to be treated in a logical andconsistent manner by stochastic modeling. This book focuses on fatigue life predictions and damage toleranceanalysis of welded joints and is divided into three parts. Thefirst part outlines the common practice used for safe life anddamage tolerance analysis with reference to rules and regulations.The second part emphasises stochastic modeling and decision-makingunder uncertainty, while the final part is devoted to recentadvances within fatigue research on welded joints. Industrialexamples that are included are mainly dealing with offshore steelstructures. Spreadsheets which accompany the book give the readerthe possibility for hands-on experience of fatigue lifepredictions, crack growth analysis and inspection planning. Assuch, these different areas will be of use to engineers andresearchers.

Mechanics and Mechanisms of Fracture

Mechanics and Mechanisms of Fracture PDF Author: Alan F. Liu
Publisher: ASM International
ISBN: 1615032525
Category : Technology & Engineering
Languages : en
Pages : 458

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Book Description


Part-through Crack Fatigue Life Prediction

Part-through Crack Fatigue Life Prediction PDF Author: J. B. Chang
Publisher: ASTM International
ISBN: 9780803105324
Category : Electronic book
Languages : en
Pages : 216

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Book Description


Comprehensive Structural Integrity: Cyclic loading and fatigue

Comprehensive Structural Integrity: Cyclic loading and fatigue PDF Author: I. Milne
Publisher: Elsevier
ISBN: 0080441556
Category : Fracture mechanics
Languages : en
Pages : 10

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Book Description


Biaxial/Multiaxial Fatigue and Fracture

Biaxial/Multiaxial Fatigue and Fracture PDF Author: Andrea Carpinteri
Publisher: Elsevier
ISBN: 9780080527819
Category : Technology & Engineering
Languages : en
Pages : 516

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Book Description
The European Structural Integrity Society (ESIS) Technical Commitee on Fatigue of Engineering Materials and Structures (TC3) decided to compile a Special Technical Publication (ESIS STP) based on the 115 papers presented at the 6th International Conference on Biaxial/Multiaxial Fatigue and Fracture. The 25 papers included in the STP have been extended and revised by the authors. The conference was held in Lisbon, Portugal, on 25-28 June 2001, and was chaired by Manual De Freitas, Instituto Superior Tecnico, Lisbon. The meeting, organised by the Instituto Superior Tecnico and sponsored by the Portuguese Minesterio da Cienca e da Tecnologia and by the European Structural Integrity Society, was attended by 151 delegates from 20 countries. The papers in the present book deal with the theoretical, numerical and experimental aspects of the Multiaxial fatigue and fracture of engineering materials and structures. They are divided in to the following six sections; Multiaxial Fatigue of Welded Structures; High cycle Multiaxial fatigue; Non proportional and Variable-Amplitude loading; Defects, Notches, Crack Growth; Low Cycle Multiaxial Fatigue; Applications and Testing Methods. As is well-known, most engineering components and structures in the mechanical, aerospace, power generation, and other industries are subjected to multiaxial loading during their service life. One of the most difficult tasks in design against fatigue and fracture is to translate the information gathered from uniaxial fatigue and fracture tests on engineering materials into applications involving complex states of cyclic stress-strain conditions. This book is the result of co-operation between many researchers from different laboratories, universities and industries in a number of countries.

Fatigue Crack Propagation in Metals and Alloys

Fatigue Crack Propagation in Metals and Alloys PDF Author: Ulrich Krupp
Publisher: John Wiley & Sons
ISBN: 3527315373
Category : Technology & Engineering
Languages : en
Pages : 311

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Book Description
This comprehensive overview of the whole field of fatigue and fracture of metallic materials covers both the theoretical background and some of the latest experimental techniques. It provides a summary of the complex interactions between material microstructure and cracks, classifying them with respect to the overall damage process with a focus on microstructurally short cracks and dynamic embrittlement. It furthermore introduces new concepts for the numerical treatment of fatigue microcrack propagation and their implementation in fatigue-life prediction models.This comprehensive overview of the whole field of fatigue and fracture of metallic materials covers both the theoretical background and the latest experimental techniques. It provides a summary of the complex interactions between material microstructure and cracks, classifying them with respect to the overall damage process. It furthermore introduces new concepts for the numerical treatment of fatigue microcrack propagation and their implementation in fatigue-life prediction models.

Applied Mechanics Reviews

Applied Mechanics Reviews PDF Author:
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages :

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Book Description


Advances in Multiaxial Fatigue

Advances in Multiaxial Fatigue PDF Author: David L. McDowell
Publisher: ASTM International
ISBN: 0803118627
Category : Technology & Engineering
Languages : en
Pages : 455

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Book Description
Papers presented at the ASTM Symposium on Multiaxial Fatigue, held in San Diego, November 1991, to communicate the most recent international advances in multiaxial cyclic deformation and fatigue research as well as applications to component analysis and design. The 24 papers are grouped into five ca