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Author : A. J. McEvily
Publisher :
ISBN 13 :
Total Pages : 34 pages
Book Rating : 4.:/5 (31 download)
Download or read book An Investigation of Nonpropagating Fatigue Cracks written by A. J. McEvily and published by . This book was released on 1959 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Arthur J. MacEvily
Publisher :
ISBN 13 :
Total Pages : 29 pages
Book Rating : 4.:/5 (249 download)
Download or read book An Investigation of Nonpropagating Fatigue Cracks written by Arthur J. MacEvily and published by . This book was released on 1959 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John David Harrison
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (751 download)
Download or read book An Analysis of Data on Non-propagating Fatigue Cracks on a Fracture Mechanics Basis written by John David Harrison and published by . This book was released on 1969 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Tsuneshichi Tanaka
Publisher :
ISBN 13 :
Total Pages : 336 pages
Book Rating : 4.3/5 (91 download)
Download or read book Current Research on Fatigue Cracks written by Tsuneshichi Tanaka and published by . This book was released on 1987 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : T. Kunio
Publisher :
ISBN 13 :
Total Pages : 29 pages
Book Rating : 4.:/5 (125 download)
Download or read book Microstructural Aspects of the Threshold Condition for Nonpropagating Fatigue Cracks in Martensitic-Ferritic Structures written by T. Kunio and published by . This book was released on 1979 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study has been made of the critical condition for the growth of microscopic fatigue cracks at the endurance limit from metallurgical considerations. The specimens employed have a microstructure with a matrix of ferrite and the second phase of martensite, the volume fraction of which is about 50 percent. All the non-propagating cracks nucleated in the ferrite matrix are stopped by the second-phase martensite at the endurance limit stress. The threshold condition for microscopic nonpropagating cracks in the ferrite matrix was investigated by restressing to slightly above the endurance limit. Subsequently it was found that the critical condition for the fatal growth of microscopic cracks into the second-phase martensite from the ferrite matrix can be evaluated by the linear theory of fracture mechanics. It is also recognized from the experiments that all the microscopic cracks in the ferrite matrix remain as nonpropagating unless the stress intensity factor at the crack tip exceeds the magnitude of the crack growth resistance of the second phase martensite, Kthm. Furthermore, experimental results show that the Kthm of the second-phase martensite is about 7.7 MPam. In addition, quantitative metallographic observations show that the critical length of the nonpropagating cracks at the endurance limits does not depend on the mean spacing of the second phase.
Author :
Publisher :
ISBN 13 :
Total Pages : 424 pages
Book Rating : 4.:/5 (319 download)
Download or read book NASA Technical Note written by and published by . This book was released on 1960 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Francis James Ryan
Publisher :
ISBN 13 :
Total Pages : 56 pages
Book Rating : 4.:/5 (312 download)
Download or read book An Investigation of Fatigue Crack Propagation Under Variable Stress written by Francis James Ryan and published by . This book was released on 1954 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : K. Erhardt
Publisher :
ISBN 13 :
Total Pages : 70 pages
Book Rating : 4.:/5 (227 download)
Download or read book Mechanisms of Fatigue Crack Propagation in Aluminum Alloys written by K. Erhardt and published by . This book was released on 1971 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: The mechanisms of crack initiation and propagation in fatigue and of crack propagation under a monotonic load were studied in high strength aluminum alloys. Part I is a detailed report on the use of scanning electron microscopy in fatigue crack propagation research. The results are discussed with reference to the theories of fatigue crack propagation. Part II is a documentation of crack initiation and stage I fatigue fracture in aluminum alloys. The existence of non-propagating cracks in aluminum alloys is discussed by comparing the endurance limit and the stress intensity threshold for non-propagating fatigue cracks. Part III REPORTS THE INFLUENCE OF TEMPERATURE AND CYCLIC RATE ON CRACK GROWTH IN 2024 T3 aluminum alloy. Part IV deals with the role of the cold work of the plastic zone at the tip of a crack on the mechanisms of fatigue crack growth rate. Part V is a study of the correlation between the fracture toughnews index K and the tensile properties. This work was undertaken to understand the dependance of the critical stress intensity factor on aging, the workhardening exponent, and plane strain ductility. (Author).
Author : T. R. Gurney
Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (838 download)
Download or read book An Investigation of the Rate of Propagation of Fatigue Cracks in a Range of Steels written by T. R. Gurney and published by . This book was released on 1968 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Tapan K. Paul
Publisher :
ISBN 13 :
Total Pages : 318 pages
Book Rating : 4.:/5 (464 download)
Download or read book An Investigation of Fatigue Crack Propagation Under Mode I and Mixed Mode I/II Loadings written by Tapan K. Paul and published by . This book was released on 1993 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : F. Ellyin
Publisher : Springer Science & Business Media
ISBN 13 : 9400915098
Total Pages : 484 pages
Book Rating : 4.4/5 (9 download)
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.
Author : Hans Albert Richard
Publisher : Springer
ISBN 13 : 3319325345
Total Pages : 305 pages
Book Rating : 4.3/5 (193 download)
Download or read book Fatigue Crack Growth written by Hans Albert Richard and published by Springer. This book was released on 2016-06-13 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a concise introduction to fatigue crack growth, based on practical examples. It discusses the essential concepts of fracture mechanics, fatigue crack growth under constant and variable amplitude loading and the determination of the fracture-mechanical material parameters. The book also introduces the analytical and numerical simulation of fatigue crack growth as well as crack initiation. It concludes with a detailed description of several practical case studies and some exercises. The target group includes graduate students, researchers at universities and practicing engineers.
Author : DE. Castro
Publisher :
ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.:/5 (125 download)
Download or read book Threshold and Nonpropagation of Fatigue Cracks Under Service Loading written by DE. Castro and published by . This book was released on 1988 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: New testing conditions for determination of fatigue threshold and a new interpretation of this parameter make it amenable to general fatigue life design. To distinguish between the terms, the conditions for nonpropagating fatigue cracks were called the fatigue tolerance range and denoted as ?KT. The conditions for nonpropagating fatigue cracks were investigated on Inconel 617 alloy in the range of Kmax between 10 to 50 MPa m1/2 under four different types of fatigue loading conditions. It was found that ?KT decreases with increasing Kmax. Furthermore, ?KT decreases with increasing prior amplitude, ?Kpr, up to a certain amplitude, ?Ks, at which the effect of prior amplitudes reaches saturation. For Inconel 617 alloy, ?Ks is between 5 and 7 MPa m1/2 at Kmax = 10 MPa m1/2 and approximately 5 MPa m1/2 at Kmax = 35 MPa m1/2. The test result on saturation behavior at Kmax = 10 MPa m1/2 suggests an influence of closure on the effects of prior amplitudes. The results are explained by differing damage states in the near region of the crack front introduced by Kmax and ?K of the prior fatigue cycles.
Author : Stanley William Zehr
Publisher :
ISBN 13 :
Total Pages : 56 pages
Book Rating : 4.:/5 (337 download)
Download or read book An Investigation of the Dependence of Fatigue Crack Propagation Mode on Stacking-fault Energy written by Stanley William Zehr and published by . This book was released on 1963 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Albert James Giramonti
Publisher :
ISBN 13 :
Total Pages : 92 pages
Book Rating : 4.:/5 (336 download)
Download or read book A Preliminary Investigation of Fatigue Crack Propagation in an Ultra-high Vacuum written by Albert James Giramonti and published by . This book was released on 1963 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Tapan Kumar Paul
Publisher :
ISBN 13 :
Total Pages : 174 pages
Book Rating : 4.:/5 (257 download)
Download or read book An Investigation of Fatigue Crack Propagation Under Mode I and Mixed Moce I/II Loadings written by Tapan Kumar Paul and published by . This book was released on 1993 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Fred Jack Fisch
Publisher :
ISBN 13 :
Total Pages : 294 pages
Book Rating : 4.:/5 (458 download)
Download or read book An Investigation of Fatigue Crack Propagation in Thin Cylindrical Shells Containing an Inclined Crack written by Fred Jack Fisch and published by . This book was released on 1968 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
