Crack Propagation

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Fatigue Crack Propagation In Metals And Alloys

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Author : Ulrich Krupp
language : en
Publisher: John Wiley & Sons
Release Date : 2007-04-09

Fatigue Crack Propagation In Metals And Alloys written by Ulrich Krupp and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-04-09 with Technology & Engineering categories.

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.

Handbook Of Fatigue Crack Propagation In Metallic Structures

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Author : A. Carpinteri
language : en
Publisher: Newnes
Release Date : 2012-12-02

Handbook Of Fatigue Crack Propagation In Metallic Structures written by A. Carpinteri and has been published by Newnes this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-02 with Technology & Engineering categories.

The purpose of this Handbook is to provide a review of the knowledge and experiences in the field of fatigue fracture mechanics. It is well-known that engineering structures can fail due to cyclic loading. For instance, a cyclically time-varying loading reduces the structure strength and can provoke a fatigue failure consisting of three stages: (a) crack initiation (b) crack propagation and (c) catastrophic failure. Since last century many scientists have tried to understand the reasons for the above-mentioned failures and how to prevent them. This Handbook contains valuable contributions from leading experts within the international scientific community and covers many of the important problems associated with the fatigue phenomena in civil, mechanical and nuclear engineering.

Extended Finite Element Method For Crack Propagation

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Author : Sylvie Pommier
language : en
Publisher: Wiley-ISTE
Release Date : 2011-02-21

Extended Finite Element Method For Crack Propagation written by Sylvie Pommier and has been published by Wiley-ISTE this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-02-21 with Technology & Engineering categories.

Novel techniques for modeling 3D cracks and their evolution in solids are presented. Cracks are modeled in terms of signed distance functions (level sets). Stress, strain and displacement field are determined using the extended finite elements method (X-FEM). Non-linear constitutive behavior for the crack tip region are developed within this framework to account for non-linear effect in crack propagation. Applications for static or dynamics case are provided.

Crack Propagation Delayed Failure And Residual Static Strength Of Titanium Aluminum And Stainless Steel Alloys In Aqueous Environments

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Author : I. E. Figge
language : en
Publisher:
Release Date : 1967

Crack Propagation Delayed Failure And Residual Static Strength Of Titanium Aluminum And Stainless Steel Alloys In Aqueous Environments written by I. E. Figge and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Aluminum categories.

Fatigue Crack Growth Measurement And Data Analysis

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Author : S. J. Hudak
language : en
Publisher: ASTM International
Release Date : 1981

Fatigue Crack Growth Measurement And Data Analysis written by S. J. Hudak and has been published by ASTM International this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Aluminum alloys categories.

Gear Crack Propagation Path Studies Guidelines For Ultra Safe Design

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Author :
language : en
Publisher:
Release Date : 2001

Gear Crack Propagation Path Studies Guidelines For Ultra Safe Design written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.

Design guidelines have been established to prevent catastrophic rim fracture failure modes when considering gear tooth bending fatigue. Analysis was performed using the finite element method with principles of linear elastic fracture mechanics. Crack propagation paths were predicted for a variety of gear tooth and rim configurations. The effects of rim and web thicknesses, initial crack locations, and gear tooth geometry factors such as diametral pitch, number of teeth, pitch radius, and tooth pressure angle were considered. Design maps of tooth/rim fracture modes including effects of gear geometry, applied load, crack size, and material properties were developed. The occurrence of rim fractures significantly increased as the backup ratio (rim thickness divided by tooth height) decreased. The occurrence of rim fractures also increased as the initial crack location was moved down the root of the tooth. Increased rim and web compliance increased the occurrence of rim fractures. For gears with constant pitch radii, coarser-pitch teeth increased the occurrence of tooth fractures over rim fractures. Also, 250 pressure angle teeth had an increased occurrence of tooth fractures over rim fractures when compared to 200 pressure angle teeth. For gears with constant number of teeth or gears with constant diametral pitch, varying size had little or no effect on crack propagation paths.

Fatigue Crack Propagation In Several Titanium And Stainless Steel Alloys And One Superalloy

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Author : C. M. Hudson
language : en
Publisher:
Release Date : 1964

Fatigue Crack Propagation In Several Titanium And Stainless Steel Alloys And One Superalloy written by C. M. Hudson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with Materials at high temperatures categories.

Three Dimensional Gear Crack Propagation Studies

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Author :
language : en
Publisher:
Release Date : 1998

Three Dimensional Gear Crack Propagation Studies written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.

Three-dimensional crack growth simulation was performed on a split-tooth gear design using boundary element modeling and linear elastic fracture mechanics. Initial cracks in the fillet of the teeth produced stress intensity factors of greater magnitude (and thus, greater crack growth rates) than those in the root or groove areas of the teeth. Crack growth simulation was performed on a case study to evaluate crack propagation paths. Tooth fracture was predicted from the crack growth simulation for an initial crack in the tooth fillet region. Tooth loads on the uncracked mesh of the split-tooth design were up to five times greater than those on the cracked mesh if equal deflections of the cracked and uncracked teeth were considered. Predicted crack shapes as well as crack propagation life are presented based on calculated stress intensity factors, mixed-mode crack propagation trajectory theories, and fatigue crack growth theories.

Problems Of Mixed Mode Crack Propagation

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Author : E.E. Gdoutos
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

Problems Of Mixed Mode Crack Propagation written by E.E. Gdoutos and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.

This is not just another book on fracture mechanics. In recent years, there have been many books published on this subject in an attempt to assess the state of the art and its applications. The majority of the work dealt with energy release rate or critical stress intensity factor and is applicable only to fracture toughness testing. The main reason for this restriction is that the energy release concept cannot easily be extended to mixed mode fracture that occurs in practice as the rule rather than the exception. Cracks will normally curve or turn because the direction of loading can change as a function of time. Their directions of growth cannot be assumed as an a priori and must be determined from a pre-assumed criterion. Analysts are still perplexed with selecting an appropriate fracture criterion because it requires much discernment and judgement. Criteria which often appeared valid for idealized situations are quickly dis credited when encountering more complex physical phenomena. Moreover, the claim of generality cannot be justified on the basis of agreement between theory and experiment for a few simple examples.

Catalog Of National Bureau Of Standards Publications 1966 1976

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Author : United States. National Bureau of Standards. Technical Information and Publications Division
language : en
Publisher:
Release Date : 1978

Catalog Of National Bureau Of Standards Publications 1966 1976 written by United States. National Bureau of Standards. Technical Information and Publications Division and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with Government publications categories.