Download or read book Random Fatigue written by K. Sobczyk and published by Academic Press. This book was released on 2012-12-02 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: For many years fatigue has been a significant and difficult problem for engineers, especially for those who design structures such as aircraft, bridges, pressure vessels, and cranes. Fatigue of engineering materials is commonly regarded as an important deterioration process and a principal mode of failure for various structural and mechanical systems. This book presents a unified approach to stochastic modeling of the fatigue phenomenon, particularly the fatigue crack growth process. The main approaches to construction of these stochastic models are presented to show their methodological consistency and potential usefulness in engineering practice. The analyses contained in this work should also inspire the development of new approaches for designing and performing fatigue experiments.
Download or read book Spectral Method in Multiaxial Random Fatigue written by Adam Nieslony and published by Springer Science & Business Media. This book was released on 2007-09-04 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph examines the theoretical foundations of the spectral method for fatigue life determination. The authors discuss a rule of description of random loading states with the matrix of power spectral density functions of the stress/strain tensor components. Some chosen criteria of multiaxial fatigue failure are analyzed. The formula proposed in this book enables readers to determine power spectral density of the equivalent history directly from the components of the power spectral density matrix of the multidimensional stochastic process.
Download or read book Black Fatigue written by Mary-Frances Winters and published by Berrett-Koehler Publishers. This book was released on 2020-09-15 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first book to define and explore Black fatigue, the intergenerational impact of systemic racism on the physical and psychological health of Black people—and explain why and how society needs to collectively do more to combat its pernicious effects. Black people, young and old, are fatigued, says award-winning diversity and inclusion leader Mary-Frances Winters. It is physically, mentally, and emotionally draining to continue to experience inequities and even atrocities, day after day, when justice is a God-given and legislated right. And it is exhausting to have to constantly explain this to white people, even—and especially—well-meaning white people, who fall prey to white fragility and too often are unwittingly complicit in upholding the very systems they say they want dismantled. This book, designed to illuminate the myriad dire consequences of “living while Black,” came at the urging of Winters's Black friends and colleagues. Winters describes how in every aspect of life—from economics to education, work, criminal justice, and, very importantly, health outcomes—for the most part, the trajectory for Black people is not improving. It is paradoxical that, with all the attention focused over the last fifty years on social justice and diversity and inclusion, little progress has been made in actualizing the vision of an equitable society. Black people are quite literally sickand tired of being sick and tired. Winters writes that “my hope for this book is that it will provide a comprehensive summary of the consequences of Black fatigue, and awaken activism in those who care about equity and justice—those who care that intergenerational fatigue is tearing at the very core of a whole race of people who are simply asking for what they deserve.”
Download or read book Vibration Fatigue by Spectral Methods written by Janko Slavič and published by Elsevier. This book was released on 2020-08-20 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vibration Fatigue by Spectral Methods relates the structural dynamics theory to the high-cycle vibration fatigue. The book begins with structural dynamics theory and relates the uniaxial and multiaxial vibration fatigue to the underlying structural dynamics and signal processing theory. Organized in two parts, part I gives the theoretical background and part II the selected experimental research. The time- and frequency- domain aspects of signal processing in general, related to structural dynamics and counting methods are covered in detail. It also covers all the underlying theory in structural dynamics, signal processing, uniaxial & multiaxial fatigue; including non-Gaussianity and non-stationarity. Finally, it provides the latest research on multiaxial vibration fatigue and the non-stationarity and non-Gaussianity effects. This book is for engineers, graduate students, researchers and industry professionals working in the field of structural durability under random loading and vibrations and also those dealing with fatigue of materials and constructions. Introduces generalized structural dynamics theory of multiaxial vibration fatigue Maximizes understanding of structural dynamics theory in relation to frequency domain fatigue Illustrates connections between experimental work and theory with case studies, cross-referencing, and parallels to accelerated vibration testing
Download or read book Fatigue Testing and Analysis Under Variable Amplitude Loading Conditions written by Peter C. McKeighan and published by ASTM International. This book was released on 2005 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Beyond Myalgic Encephalomyelitis Chronic Fatigue Syndrome written by Institute of Medicine and published by National Academies Press. This book was released on 2015-03-16 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: Myalgic encephalomyelitis (ME) and chronic fatigue syndrome (CFS) are serious, debilitating conditions that affect millions of people in the United States and around the world. ME/CFS can cause significant impairment and disability. Despite substantial efforts by researchers to better understand ME/CFS, there is no known cause or effective treatment. Diagnosing the disease remains a challenge, and patients often struggle with their illness for years before an identification is made. Some health care providers have been skeptical about the serious physiological - rather than psychological - nature of the illness. Once diagnosed, patients often complain of receiving hostility from their health care provider as well as being subjected to treatment strategies that exacerbate their symptoms. Beyond Myalgic Encephalomyelitis/Chronic Fatigue Syndrome proposes new diagnostic clinical criteria for ME/CFS and a new term for the illness - systemic exertion intolerance disease(SEID). According to this report, the term myalgic encephalomyelitis does not accurately describe this illness, and the term chronic fatigue syndrome can result in trivialization and stigmatization for patients afflicted with this illness. Beyond Myalgic Encephalomyelitis/Chronic Fatigue Syndrome stresses that SEID is a medical - not a psychiatric or psychological - illness. This report lists the major symptoms of SEID and recommends a diagnostic process.One of the report's most important conclusions is that a thorough history, physical examination, and targeted work-up are necessary and often sufficient for diagnosis. The new criteria will allow a large percentage of undiagnosed patients to receive an accurate diagnosis and appropriate care. Beyond Myalgic Encephalomyelitis/Chronic Fatigue Syndrome will be a valuable resource to promote the prompt diagnosis of patients with this complex, multisystem, and often devastating disorder; enhance public understanding; and provide a firm foundation for future improvements in diagnosis and treatment.
Download or read book Decode Your Fatigue written by Alex Howard and published by Hay House, Inc. This book was released on 2021-10-12 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: A practical guide to overcoming chronic fatigue, adrenaline fatigue syndrome and chronic low energy, by a renowned health expert. Get to the root cause of your chronic fatigue diagnosis and discover a clinically proven 12-step plan to healing, recovery and transformation. Living with fatigue can feel hopeless and confusing, with traditional medical approaches focusing on managing symptoms rather than understanding and addressing underlying causes. But healing is possible when you learn to decode your fatigue and apply the right interventions, in the right sequence, at the right time. After suffering from chronic fatigue for seven years, renowned health expert Alex Howard founded one of the world's leading clinics specializing in fatigue, and has dedicated over 20 years to understanding this condition. This book will guide you through a clinically proven methodology to help you to: · Understand the underlying factors that cause fatigue · Discover the key steps to increasing your energy sustainably · Map out your personalized plan for recovery This revolutionary 12-step approach will not only help you to decode your fatigue, but also start to create your own path to healing and transformation.
Download or read book Fatigue Mechanisms written by W. L. Morris and published by ASTM International. This book was released on 1983 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Multiaxial Fatigue and Deformation written by Sreeramesh Kalluri and published by ASTM International. This book was released on 2000 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains papers from a May 1999 symposium, describing state-of-the-art multiaxial testing techniques and analytical methods for characterizing fatigue and deformation behaviors of engineering materials. Papers are classified into sections on multiaxial strength of materials, multiaxial deformation,
Download or read book Non Gaussian Random Vibration Fatigue Analysis and Accelerated Test written by Yu Jiang and published by Springer Nature. This book was released on 2021-09-15 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses the theory, method and application of non-Gaussian random vibration fatigue analysis and test. The main contents include statistical analysis method of non-Gaussian random vibration, modeling and simulation of non-Gaussian/non-stationary random vibration, response analysis under non-Gaussian base excitation, non-Gaussian random vibration fatigue life analysis, fatigue reliability evaluation of structural components under Gaussian/non-Gaussian random loadings, non-Gaussian random vibration accelerated test method and application cases. From this book, the readers can not only learn how to reproduce the non-Gaussian vibration environment actually experienced by the product, but also know how to evaluate the fatigue life and reliability of the structure under non-Gaussian random excitation.
Download or read book Resident Duty Hours written by Institute of Medicine and published by National Academies Press. This book was released on 2009-04-27 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: Medical residents in hospitals are often required to be on duty for long hours. In 2003 the organization overseeing graduate medical education adopted common program requirements to restrict resident workweeks, including limits to an average of 80 hours over 4 weeks and the longest consecutive period of work to 30 hours in order to protect patients and residents from unsafe conditions resulting from excessive fatigue. Resident Duty Hours provides a timely examination of how those requirements were implemented and their impact on safety, education, and the training institutions. An in-depth review of the evidence on sleep and human performance indicated a need to increase opportunities for sleep during residency training to prevent acute and chronic sleep deprivation and minimize the risk of fatigue-related errors. In addition to recommending opportunities for on-duty sleep during long duty periods and breaks for sleep of appropriate lengths between work periods, the committee also recommends enhancements of supervision, appropriate workload, and changes in the work environment to improve conditions for safety and learning. All residents, medical educators, those involved with academic training institutions, specialty societies, professional groups, and consumer/patient safety organizations will find this book useful to advocate for an improved culture of safety.
Download or read book Planning Fatigue Experiments and Analyzing Fatigue Data with the Random Fatigue limit Model and Modified Sudden Death Tests written by Francis Garcia Pascual and published by . This book was released on 1997 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Random Fatigue written by Jhy-Pyng Tang and published by . This book was released on 1970 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fatigue Testing and Analysis written by Yung-Li Lee and published by Elsevier. This book was released on 2011-04-18 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fatigue Testing and Analysis: Theory and Practice presents the latest, proven techniques for fatigue data acquisition, data analysis, and test planning and practice. More specifically, it covers the most comprehensive methods to capture the component load, to characterize the scatter of product fatigue resistance and loading, to perform the fatigue damage assessment of a product, and to develop an accelerated life test plan for reliability target demonstration. This book is most useful for test and design engineers in the ground vehicle industry. Fatigue Testing and Analysis introduces the methods to account for variability of loads and statistical fatigue properties that are useful for further probabilistic fatigue analysis. The text incorporates and demonstrates approaches that account for randomness of loading and materials, and covers the applications and demonstrations of both linear and double-linear damage rules. The reader will benefit from summaries of load transducer designs and data acquisition techniques, applications of both linear and non-linear damage rules and methods, and techniques to determine the statistical fatigue properties for the nominal stress-life and the local strain-life methods. - Covers the useful techniques for component load measurement and data acquisition, fatigue properties determination, fatigue analysis, and accelerated life test criteria development, and, most importantly, test plans for reliability demonstrations - Written from a practical point of view, based on the authors' industrial and academic experience in automotive engineering design - Extensive practical examples are used to illustrate the main concepts in all chapters
Download or read book Fatigue of Materials written by Subra 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.
Download or read book Fatigue Design Procedures written by E. Gassner and published by Elsevier. This book was released on 2014-05-16 with total page 535 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fatigue Design Procedures presents the full text of the papers presented at the 4th Symposium of the International Committee on Aeronautical Fatigue held in Munich, Germany on June 16-18, 1965, and summaries of the discussion held about them. The papers featured in the volume covers different aspects of fatigue design. These include fail-safe design for a jet transport airplane, the weapon systems fatigue certification program of the U.S. Air Force, the role of variable amplitude or constant amplitude tests in design studies, the evaluation of allowable design stress and corresponding fatigue life, and the importance of fatigue design testing. This book will be of interest to persons dealing with studies on fatigue design methods.
Download or read book Stochastic Approach to Fatigue written by K. Sobczyk and published by Springer. This book was released on 2014-05-04 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fatigue of engineering materials is a very complicated process that is difficult to accurately describe and predict. It is no doubt nowadays, that a fatigue of real materials should be regarded as a random phenomenon and analyzed by use of stochastic theory. This volume of the lectures sumarises the latest achievements in stochastic modelling and analysis of fatigue. The lectures cover the following important aspects of modern analysis of fatigue: methodology of stochastic modelling of fatigue, tools for characterization of random fatigue loads, physical and mechanical aspects of random fatigue, basic stochastic models for fatigue and the estimation of fatigue reliability of specific structural systems.
