Recent Progress In Understanding Environment Assisted Fatigue Crack Growth

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Recent Progress in Understanding Environment Assisted Fatigue Crack Growth

Author : R. P. Wei
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Recent Progress in Understanding Environment Assisted Fatigue Crack Growth by : R. P. Wei

Download or read book Recent Progress in Understanding Environment Assisted Fatigue Crack Growth written by R. P. Wei and published by . This book was released on 1979 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent fracture mechanics and surface chemistry based studies have contributed to further understanding of environment assisted fatigue crack growth in high-strength alloys. For highly reactive alloy-environment systems, cracking response may depend also on the rate of transport of the aggressive environment to the crack tip. For gaseous environments, a formal basis for estimating pressure and frequency dependence has been developed. The framework and approach are expected to be applicable to other aggressive environments (such as, aqueous environments), and should provide a basis for the development of appropriate material evaluation and life prediction procedures.

Scientific and Technical Aerospace Reports

Author :
Publisher :
ISBN 13 :
Total Pages : 704 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Recent Progress in the Understanding of Fatigue Crack Propagation

Author :
Publisher :
ISBN 13 :
Total Pages : 110 pages
Book Rating : 4.:/5 (931 download)

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Book Synopsis Recent Progress in the Understanding of Fatigue Crack Propagation by :

Download or read book Recent Progress in the Understanding of Fatigue Crack Propagation written by and published by . This book was released on 2013 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Technical Abstract Bulletin

Author :
Publisher :
ISBN 13 :
Total Pages : 368 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Technical Abstract Bulletin by :

Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1979 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Modeling of Environmentally Assisted Fatigue Crack Growth Behavior

Author : Phani Chandar Reddy Sree
Publisher :
ISBN 13 :
Total Pages : 142 pages
Book Rating : 4.:/5 (913 download)

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Book Synopsis Modeling of Environmentally Assisted Fatigue Crack Growth Behavior by : Phani Chandar Reddy Sree

Download or read book Modeling of Environmentally Assisted Fatigue Crack Growth Behavior written by Phani Chandar Reddy Sree and published by . This book was released on 2015 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: The formation of fatigue cracks and their propagation due to cyclic loading in metals have been a concern for more than hundred years. Since fatigue failure were first reported by the railroad industry in 1840s, tremendous progress has been achieved in understanding fatigue behavior of metals. But fatigue damage is still a concern due to its complex dependency on various environmental variable like humidity, temperature, time and corrosive environment. Although numerous theories and models have been proposed in the past, the effects of environment on fatigue crack growth (FCG) is not completely understood. This dissertation aims to shed light on the effect of environment on the FCG behavior in metals through experimental techniques (Part-I) and modeling (Part- II). Using the available concepts in literature and the generated experimental data, a new fatigue model is proposed which accounts for thickness, stress ratio and environmental effects on FCG behavior. The slow-strain-rate tests revealed that the effect of liquid-air interface on tensile behavior of Al 7075-T651 can be explained by a concept of chemical notch at the liquid-air interface. The FCG behavior of Al 7075-T651 alloy in air and in vacuum were investigated by using an earlier developed custom matrix method based on [delta]K and Kmax. The FCG data generated revealed the influence of stress ratio,(R), thickness and environment (air and vacuum) on FCG behavior. A new FCG model presented in Part-II includes the environmental effect through change in crack tip angle. In this model the mechanical fatigue damage is based on the two parameter approach, [delta]K and Kmax. The model predictions of R-ratio, thickness and environment effects on FCG behavior in metals is compared with available data published in the literature and fairly good agreement was found.

Comprehensive Structural Integrity

Author : Ian Milne
Publisher : Elsevier
ISBN 13 : 0080490735
Total Pages : 4647 pages
Book Rating : 4.0/5 (84 download)

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Book Synopsis Comprehensive Structural Integrity by : Ian Milne

Download or read book Comprehensive Structural Integrity written by Ian Milne and published by Elsevier. This book was released on 2003-07-25 with total page 4647 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this major reference work is to provide a first point of entry to the literature for the researchers in any field relating to structural integrity in the form of a definitive research/reference tool which links the various sub-disciplines that comprise the whole of structural integrity. Special emphasis will be given to the interaction between mechanics and materials and structural integrity applications. Because of the interdisciplinary and applied nature of the work, it will be of interest to mechanical engineers and materials scientists from both academic and industrial backgrounds including bioengineering, interface engineering and nanotechnology. The scope of this work encompasses, but is not restricted to: fracture mechanics, fatigue, creep, materials, dynamics, environmental degradation, numerical methods, failure mechanisms and damage mechanics, interfacial fracture and nano-technology, structural analysis, surface behaviour and heart valves. The structures under consideration include: pressure vessels and piping, off-shore structures, gas installations and pipelines, chemical plants, aircraft, railways, bridges, plates and shells, electronic circuits, interfaces, nanotechnology, artificial organs, biomaterial prostheses, cast structures, mining... and more. Case studies will form an integral part of the work.

Environment-sensitive Fracture

Author : S. W. Dean
Publisher : ASTM International
ISBN 13 : 9780803102644
Total Pages : 569 pages
Book Rating : 4.1/5 (26 download)

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Book Synopsis Environment-sensitive Fracture by : S. W. Dean

Download or read book Environment-sensitive Fracture written by S. W. Dean and published by ASTM International. This book was released on 1984 with total page 569 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Fatigue Damage, Crack Growth and Life Prediction

Author : F. Ellyin
Publisher : Springer Science & Business Media
ISBN 13 : 9400915098
Total Pages : 484 pages
Book Rating : 4.4/5 (9 download)

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Book Synopsis Fatigue Damage, Crack Growth and Life Prediction by : F. Ellyin

Download or read book Fatigue Damage, Crack Growth and Life Prediction written by F. Ellyin and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Fatigue of Materials and Structures

Author : Claude Bathias
Publisher : John Wiley & Sons
ISBN 13 : 1118623371
Total Pages : 415 pages
Book Rating : 4.1/5 (186 download)

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Book Synopsis Fatigue of Materials and Structures by : Claude Bathias

Download or read book Fatigue of Materials and Structures written by Claude Bathias and published by John Wiley & Sons. This book was released on 2013-03-04 with total page 415 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design of mechanical structures with improved and predictable durability cannot be achieved without a thorough understanding of the mechanisms of fatigue damage and more specifically the relationships between the microstructure of materials and their fatigue properties. Written by leading experts in the field, this book (which is complementary to Fatigue of Materials and Structures: Application to Damage and Design, also edited by Claude Bathias and André Pineau), provides an authoritative, comprehensive and unified treatment of the mechanics and micromechanisms of fatigue in metals, polymers and composites. Each chapter is devoted to one of the major classes of materials or to different types of fatigue damage, thereby providing overall coverage of the field. The book deals with crack initiation, crack growth, low-cycle fatigue, gigacycle fatigue, shorts cracks, fatigue micromechanisms and the local approach to fatigue damage, corrosion fatigue, environmental effects and variable amplitude loadings, and will be an important and much used reference for students, practicing engineers and researchers studying fracture and fatigue in numerous areas of mechanical, structural, civil, design, nuclear, and aerospace engineering as well as materials science.

Environment Assisted Fatigue (EGF 7)

Author : P. Scott
Publisher : Wiley-Blackwell
ISBN 13 :
Total Pages : 530 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Environment Assisted Fatigue (EGF 7) by : P. Scott

Download or read book Environment Assisted Fatigue (EGF 7) written by P. Scott and published by Wiley-Blackwell. This book was released on 1990 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environment Assisted Fatigue (or corrosion fatigue) is a complex subject attracting researchers with backgrounds in chemistry, metallurgy and mechanical engineering. The conference held at Sheffield University in the Spring of 1988 in this subject was no exception to this multi-disciplinary trait.

Fracture Mechanics

Author : J. C. Lewis
Publisher : ASTM International
ISBN 13 : 9780803107281
Total Pages : 628 pages
Book Rating : 4.1/5 (72 download)

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Book Synopsis Fracture Mechanics by : J. C. Lewis

Download or read book Fracture Mechanics written by J. C. Lewis and published by ASTM International. This book was released on 1983 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:

On Understanding Environment-Enhanced Fatigue Crack Growth -- A Fundamental Approach

Author : RP. Wei
Publisher :
ISBN 13 :
Total Pages : 25 pages
Book Rating : 4.:/5 (125 download)

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Book Synopsis On Understanding Environment-Enhanced Fatigue Crack Growth -- A Fundamental Approach by : RP. Wei

Download or read book On Understanding Environment-Enhanced Fatigue Crack Growth -- A Fundamental Approach written by RP. Wei and published by . This book was released on 1979 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: Corrosion fatigue is a generic term that is used to describe the phenomenon of cracking (including environment-enhanced fatigue crack growth) in materials under the combined actions of an applied cyclic stress and a corrosive (aggressive) environment. Quantitative characterization and understanding have been hampered by the complexity of the problem, difficulties in separating the effects associated with crack initiation and crack growth, and by the absence of a truly interdisciplinary attack of the problem. With the development of fracture mechanics technology and sophisticated techniques such as Auger electron spectroscopy and low-energy electron diffraction analysis, quantification of environment-enhanced fatigue crack growth has now been placed on a reasonably firm basis in terms of both steady-state and transient responses. Understanding of the chemical processes that control environment-enhanced fatigue crack growth is beginning to emerge from coordinated mechanical, metallurgical, and chemical studies. A fundamental approach that underlies these studies and recent progress using this approach are described. Areas and directions for future research are discussed.

Gaseous Hydrogen Embrittlement of Materials in Energy Technologies

Author : Richard P Gangloff
Publisher : Elsevier
ISBN 13 : 0857093894
Total Pages : 864 pages
Book Rating : 4.8/5 (57 download)

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Book Synopsis Gaseous Hydrogen Embrittlement of Materials in Energy Technologies by : Richard P Gangloff

Download or read book Gaseous Hydrogen Embrittlement of Materials in Energy Technologies written by Richard P Gangloff and published by Elsevier. This book was released on 2012-01-16 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many modern energy systems are reliant on the production, transportation, storage, and use of gaseous hydrogen. The safety, durability, performance and economic operation of these systems is challenged by operating-cycle dependent degradation by hydrogen of otherwise high performance materials. This important two-volume work provides a comprehensive and authoritative overview of the latest research into managing hydrogen embrittlement in energy technologies.Volume 1 is divided into three parts, the first of which provides an overview of the hydrogen embrittlement problem in specific technologies including petrochemical refining, automotive hydrogen tanks, nuclear waste disposal and power systems, and H2 storage and distribution facilities. Part two then examines modern methods of characterization and analysis of hydrogen damage and part three focuses on the hydrogen degradation of various alloy classesWith its distinguished editors and international team of expert contributors, Volume 1 of Gaseous hydrogen embrittlement of materials in energy technologies is an invaluable reference tool for engineers, designers, materials scientists, and solid mechanicians working with safety-critical components fabricated from high performance materials required to operate in severe environments based on hydrogen. Impacted technologies include aerospace, petrochemical refining, gas transmission, power generation and transportation. Summarises the wealth of recent research on understanding and dealing with the safety, durability, performance and economic operation of using gaseous hydrogen at high pressure Reviews how hydrogen embrittlement affects particular sectors such as the petrochemicals, automotive and nuclear industries Discusses how hydrogen embrittlement can be characterised and its effects on particular alloy classes

Metal Plasticity and Fatigue at High Temperature

Author : Denis Benasciutti
Publisher : MDPI
ISBN 13 : 3039287702
Total Pages : 220 pages
Book Rating : 4.0/5 (392 download)

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Book Synopsis Metal Plasticity and Fatigue at High Temperature by : Denis Benasciutti

Download or read book Metal Plasticity and Fatigue at High Temperature written by Denis Benasciutti and published by MDPI. This book was released on 2020-05-20 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: In several industrial fields (such as automotive, steelmaking, aerospace, and fire protection systems) metals need to withstand a combination of cyclic loadings and high temperatures. In this condition, they usually exhibit an amount—more or less pronounced—of plastic deformation, often accompanied by creep or stress-relaxation phenomena. Plastic deformation under the action of cyclic loadings may cause fatigue cracks to appear, eventually leading to failures after a few cycles. In estimating the material strength under such loading conditions, the high-temperature material behavior needs to be considered against cyclic loading and creep, the experimental strength to isothermal/non-isothermal cyclic loadings and, not least of all, the choice and experimental calibration of numerical material models and the selection of the most comprehensive design approach. This book is a series of recent scientific contributions addressing several topics in the field of experimental characterization and physical-based modeling of material behavior and design methods against high-temperature loadings, with emphasis on the correlation between microstructure and strength. Several material types are considered, from stainless steel, aluminum alloys, Ni-based superalloys, spheroidal graphite iron, and copper alloys. The quality of scientific contributions in this book can assist scholars and scientists with their research in the field of metal plasticity, creep, and low-cycle fatigue.

Fatigue

Author : John J. Burke
Publisher : Springer Science & Business Media
ISBN 13 : 1489917365
Total Pages : 419 pages
Book Rating : 4.4/5 (899 download)

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Book Synopsis Fatigue by : John J. Burke

Download or read book Fatigue written by John J. Burke and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Army Materials and Mechanics Research Center in coop eration with the Materials Science Group of the Department of Chemical Engineering and Materials Science of Syracuse University has been conducting the Annual Sagamore Army Materials Research Conference since 1954. The specific purpose of these conferences has been to bring together scientists and engineers from academic institutions, industry and government who are uniquely qualified to explore in depth a subject of importance to the Department of Defense, the Army and the scientific community. These proceedings entitled, FATIGUE - ENVIRONMENT AND TEMPER ATURE EFFECT, address the overview of temperature and environmental effects of fatigue, room temperature environmental effects, high temperature and environmental effect - mechanisms, high tempera ture and environmental effect - mechanisms, materials and design-engineering applications. We wish to acknowledge the assistance of Messrs. Joseph Bernier and Dan McNaught of the Army Materials and Mechanics Research Center and Helen Brown DeMascio of Syracuse University throughout the stages of the conference planning and finally the publication of the book. The continued active interest and support of these conferences by Dr. E. Wright, Director of the Army Materials and Mechanics Research Center, is appreciated.

Fatigue Crack Growth Thresholds, Endurance Limits, and Design

Author : J. C. Newman
Publisher : ASTM International
ISBN 13 : 0803126247
Total Pages : 436 pages
Book Rating : 4.8/5 (31 download)

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Book Synopsis Fatigue Crack Growth Thresholds, Endurance Limits, and Design by : J. C. Newman

Download or read book Fatigue Crack Growth Thresholds, Endurance Limits, and Design written by J. C. Newman and published by ASTM International. This book was released on 2000 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation Contains 24 papers from the November, 1998 symposium of the same name, sponsored by the ASTM Committee E8 on Fatigue and Fracture, and presented by Newman and Piascik (both of the NASA Langley Research Center). The papers focus on such areas as fatigue-crack growth threshold mechanisms, loading and specimen-type effects, analyses of fatigue-crack-growth-threshold behavior, and applications of threshold concepts and endurance limits to aerospace and structural materials. Annotation copyrighted by Book News, Inc., Portland, OR.

Fatigue of Materials

Author : S. Suresh
Publisher : Cambridge University Press
ISBN 13 : 1139643304
Total Pages : 708 pages
Book Rating : 4.1/5 (396 download)

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Book Synopsis Fatigue of Materials by : S. Suresh

Download or read book Fatigue of Materials written by S. Suresh and published by Cambridge University Press. This book was released on 1998-10-29 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by a leading researcher in the field, this revised and updated second edition of a highly successful book provides an authoritative, comprehensive and unified treatment of the mechanics and micromechanisms of fatigue in metals, non-metals and composites. The author discusses the principles of cyclic deformation, crack initiation and crack growth by fatigue, covering both microscopic and continuum aspects. The book begins with discussions of cyclic deformation and fatigue crack initiation in monocrystalline and polycrystalline ductile alloys as well as in brittle and semi-/non-crystalline solids. Total life and damage-tolerant approaches are then introduced in metals, non-metals and composites followed by more advanced topics. The book includes an extensive bibliography and a problem set for each chapter, together with worked-out example problems and case studies. This will be an important reference for anyone studying fracture and fatigue in materials science and engineering, mechanical, civil, nuclear and aerospace engineering, and biomechanics.