[PDF] Surface Crack Growth eBook

Author : Walter G. Reuter
Publisher : ASTM International
Page : 428 pages
File Size : 42,12 MB
Release : 1990
Category : Fracture mechanics
ISBN : 080311284X

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From the symposium (on title) held in Sparks, Nevada, April 1988. Twenty-two peer-reviewed papers are divided into sections on models and experiments (monotonic loading), and fatigue crack growth. Areas addressed include the differences in constraint for 2-D through-thickness cracks and 3-D surface

Author : Srečko Glodež
Publisher : Cambridge Scholars Publishing
Page : 175 pages
File Size : 45,93 MB
Release : 2020-07-13
Category : Technology & Engineering
ISBN : 1527556549

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Many people find the concept of fracture and damage mechanics to be somewhat problematic, mainly because, until recently, close attention in mechanics was focused especially on the strength and resistance of materials. In this sense, to speak of fracture is as uncomfortable for some as it is to speak of a deadly disease. In confronting and preventing a fatal disease, one must understand its complexity, symptoms, and behavior; by the same token, in securing the strength of an engineering structure, one must understand the reasons and type of its potential failure. This book will provide knowledge and insights on this matter to its readers.

Author : J. C. Newman
Publisher : ASTM International
Page : 436 pages
File Size : 36,83 MB
Release : 2000
Category : Fatigue
ISBN : 0803126247

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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.

Author : M. Prodan
Publisher :
Page : 16 pages
File Size : 32,60 MB
Release : 1990
Category : Energy integral J.
ISBN :

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The new method of surface crack growth calculation under linear elastic fracture mechanics (LEFM) conditions facilitates the use of stress-intensity factor K (and in particular its ?K range) as a tool to estimate the fatigue life of cracked plates under tensile loads. This is made possible by determining a set of parameters in order to obtain equal ?K values and analogous crack propagation rates in two widely different specimen geometries, a plate and a standard compact type (C(T)) specimen. A comparison of fatigue lives with equivalent crack growth for both types of specimen suggests that in using the proposed procedure, the significance of ?K values in a part-through crack is closely related to that of a through crack in a C(T) specimen.

Author : K.S. Ravichandran
Publisher : Elsevier
Page : 511 pages
File Size : 48,3 MB
Release : 1999-09-30
Category : Technology & Engineering
ISBN : 0080569706

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This book contains the fully peer-reviewed papers presented at the Third Engineering Foundation Conference on Small Fatigue Cracks, held under the chairmanship of K.S. Ravichandran and Y. Murakami during December 6-11, 1998, at the Turtle Bay Hilton, Oahu, Hawaii. This book presents a state-of-the-art description of the mechanics, mechanisms and applications of small fatigue cracks by most of the world's leading experts in this field. Topics ranging from the mechanisms of crack initiation, small crack behavior in metallic, intermetallic, ceramic and composite materials, experimental measurement, mechanistic and theoretical models, to the role of small cracks in fretting fatigue and the application of small crack results to the aging aircraft and high-cycle fatigue problems, are covered.

Author : Hans Albert Richard
Publisher : Springer
Page : 305 pages
File Size : 25,45 MB
Release : 2016-06-13
Category : Technology & Engineering
ISBN : 3319325345

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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 : A. Kanagawa
Publisher :
Page : 13 pages
File Size : 31,96 MB
Release : 1994
Category : Bridging
ISBN :

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Cyclic fatigue crack growth tests of silicon nitride specimens with surface cracks as well as through-the-thickness cracks were carried out. The surface crack length was measured by a surface film gage technique. The fatigue crack growth rate for surface cracks was less than that for through-the-thickness cracks. From SEM observations, more significant bridging was found in the wake of surface cracks compared to through-the-thickness cracks. From evaluations of the stress shielding effect due to bridging based on the measurements of the crack mouth opening displacement, it was found that the crack growth curve determined from the crack tip stress intensity factor Ktip for surface cracks almost coincided with that for through-the-thickness cracks.