Download or read book Fatigue and Fatigue Crack Growth Processes in Hard Tissues written by Hessam Majd and published by . This book was released on 2013 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the progressive increase in partially and fully dentate seniors, fracture has become an increasingly common form of restored tooth failure. Dentin undergoes progressive changes in microstructure with patient age, and studies are now suggesting that there is a reduction in fatigue strength and fatigue crack growth resistance of this tissue. This dissertation explores aging of dentin, the influence of flaws that are introduced during restorative processes on the fatigue properties of dentin, and proposes models for characterizing the damage initiation and growth process during fatigue of dentin. Results from this investigation show that the fatigue crack growth properties (Paris Law parameters (C, m) and DeltaKth) of human dentin undergo the most significant changes at a patient age of 42 years. Based on the fatigue crack growth responses, three age groups were established including young (age ≤ 33), aged (34 ≤ age ≤ 49) and old (50 ≤ age) patients for further analysis. There were significant differences in the initiation and growth behavior between the tissues of patients from the three age groups. With regards to the influence of restorative processes, there was no influence on the quasi-static responses of dentin. However, the endurance limit of dentin treated with the dental burs (28 MPa) and abrasive air jet (35 MPa) were approximately 36% and 20% lower than that of the control (44 MPa), respectively. Both cutting processes caused a significant reduction (p≤0.0001) in fatigue strength.

Download or read book Applied Fracture Mechanics written by Alexander Belov and published by IntechOpen. This book was released on 2012-12-12 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book "Applied Fracture Mechanics" presents a collection of articles on application of fracture mechanics methods to materials science, medicine, and engineering. In thirteen chapters, a wide range of topics is discussed, including strength of biological tissues, safety of nuclear reactor components, fatigue effects in pipelines, environmental effects on fracture among others. In addition, the book presents mathematical and computational methods underlying the fracture mechanics applications, and also developments in statistical modeling of fatigue. The work presented in this book will be useful, effective, and beneficial to mechanical engineers, civil engineers, and material scientists from industry, research, and education.

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.

Download or read book Machining of Bone and Hard Tissues written by Narendra B. Dahotre and published by Springer. This book was released on 2016-06-07 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an in-depth review of state-of-the-art orthopaedic techniques and basic mechanical operations (drilling, boring, cutting, grinding/milling) involved in present day orthopaedic surgery. Casting a light on exploratory hybrid operations, as well as non-conventional techniques such as laser assisted operations, this book further extends the discussion to include physical aspects of the surgery in view of material (bone) and process parameters. Featuring detailed discussion of the computational modeling of forces (mechanical and thermal) involved in surgical procedures for the planning and optimization of the process/procedure and system development, this book lays the foundations for efforts towards the future development of improved orthopaedic surgery. With topics including the role of bone machining during surgical operations; the physical properties of the bone which influence the response to any machining operation, and robotic automation, this book will be a valuable and comprehensive literature source for years to come.

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.

Download or read book How Fatigue Cracks Grow Interact with Microstructure and Lose Similitude written by DL. Davidson and published by . This book was released on 1997 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper reviews the processes by which fatigue cracks grow and interact with applied load and microstructure. Fatigue crack growth processes are remarkably similar irrespective of microstructure, crack size, or nature of the loading. Large strains at fatigue crack tips applied over repeated cycles severely alter, or homogenize, microstructures, followed by crack advance. Microstructure affects fatigue crack growth kinetics more than growth processes. But, under marginal conditions, fatigue crack growth rates are also affected by microstructural features. Examples are small cracks growing under low stresses or large cracks growing near threshold.

Download or read book Fatigue of Structures and Materials written by J. Schijve and published by Springer Science & Business Media. This book was released on 2008-12-16 with total page 627 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fatigue of structures and materials covers a wide scope of different topics. The purpose of the present book is to explain these topics, to indicate how they can be analyzed, and how this can contribute to the designing of fatigue resistant structures and to prevent structural fatigue problems in service. Chapter 1 gives a general survey of the topic with brief comments on the signi?cance of the aspects involved. This serves as a kind of a program for the following chapters. The central issues in this book are predictions of fatigue properties and designing against fatigue. These objectives cannot be realized without a physical and mechanical understanding of all relevant conditions. In Chapter 2 the book starts with basic concepts of what happens in the material of a structure under cyclic loads. It illustrates the large number of variables which can affect fatigue properties and it provides the essential background knowledge for subsequent chapters. Different subjects are presented in the following main parts: • Basic chapters on fatigue properties and predictions (Chapters 2–8) • Load spectra and fatigue under variable-amplitude loading (Chapters 9–11) • Fatigue tests and scatter (Chapters 12 and 13) • Special fatigue conditions (Chapters 14–17) • Fatigue of joints and structures (Chapters 18–20) • Fiber-metal laminates (Chapter 21) Each chapter presents a discussion of a speci?c subject.

Download or read book Dental Biomaterials written by R V Curtis and published by Elsevier. This book was released on 2014-01-23 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dental Biomaterials: Imaging, Testing and Modelling reviews the materials used in this important area, their performance and how such performance can be measured and optimised. Chapters review optical and electron microscopy imaging techniques for dental biomaterial interfaces. Specific materials such as dental cements, fibre-reinforced composites, metals and alloys are discussed. There is an analysis of stresses, fracture, wear and ageing in dental biomaterials as well as an evaluation of the performance of dental adhesives and resin-dentin bonds. Chapters also review ways of assessing the performance of dental handpieces, crowns, implants and prosthesies. The book also reviews the use of computer models in such areas as bond strength and shape optimisation of dental restorations. With its distinguished editors and team of experienced contributors DDental Biomaterials: Imaging, Testing and Modelling researchers, materials scientists, engineers and dental practitioners with an essential guide to the use and performance of dental biomaterials. An essential guide to the use and performance of dental biomaterials Reviews optical and electron microscopy imaging techniques for dental biomaterial interfaces Analyses stresses, fracture, wear and ageing in dental biomaterials and evaluates the performance of dental adhesives and resin-dentin bonds

Download or read book Multi axial Fatigue of Trabecular Bone with Respect to Normal Walking written by Mohammad Mostakhdemin and published by Springer. This book was released on 2015-06-10 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the analysis and treatment of osteoporotic bone based on drug administration, tracking fatigue behavior and taking into consideration the mechanical interaction of implants with trabecular bone. Weak trabeculae are one of the most important clinical features that need to be addressed in order to prevent hip joint fractures.

Download or read book Fracture and Fatigue Characterisation of Cortical Bone Tissue written by Marcelo F. S. F. de Moura and published by CRC Press. This book was released on 2024-09-09 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fracture and Fatigue Characterisation of Cortical Bone Tissue is a key guide to bone fracture and fatigue, focusing on quasi-static and fatigue-fracture characterisation of cortical bone tissue. Discussing the fundamental aspects of fracture mechanics and fatigue, which are applicable to many orthotropic materials, this book examines novel, cutting-edge approaches to analyse and model bone fracture and fatigue. As the population ages across the globe, bone fracture and fatigue has become a fundamental part of mechanical and biomedical engineering research. Beginning with a thorough description of fracture mechanics and fatigue, the book describes non-linear fracture mechanics under quasi-static and fatigue analyses. It goes on to present a cohesive zone modelling method which is appropriate for mode I, mode II and mixed-mode I+II loading. Presenting the latest research, this book describes cutting-edge fracture tests, new methods for data reduction purposes and numerical models based on cohesive zone modelling. This book is key to aiding both students and professionals in applying fundamental theories and methods to cortical bone tissue. The book will be of interest to students and professionals working in mechanical engineering and biomedical engineering, including work on quasi-static fracture, fracture under fatigue loading, artificial bones and fracture mechanisms.

Download or read book Fatigue Crack Growth written by Ping Tang and published by Nova Science Publishers. This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, the authors present current research in the study of the mechanisms, behaviour and analysis of fatigue crack growths. Topics discussed in this compilation include the unified fatigue crack growth rate model; practical tools for statistical fatigue design; probablistic algorithms performance evaluation and application in multi-fractured structures; three dimensional effects in the fracture mechanics of bi-dimensional specimens; fatigue crack propagation mechanism in porous open pore metal foams; lifetime predictions for short fatigue crack's initiation-propagation by basic mechanical properties; variable amplitude fatigue crack growth in selected aluminium alloys; fatigue threshold R-curves for analysis of short fatigue cracks; and multiaxial fatigue life prediction for lateral notched round bars made of high strength steel.

Download or read book Biomaterials for Tissue Engineering written by Mehdi Razavi and published by Bentham Science Publishers. This book was released on 2017-10-03 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume reviews the published knowledge about bioactive composites, protein scaffolds and hydrogels. Chapters also detail the production parameters and clarify the evaluation protocol for analysis or testing and scaffolding biomaterials. The volume concludes with a summary of applications of porous scaffold in medicine. Each chapter links basic scientific and engineering concepts to practical applications for the benefit of the reader. The text offers a wealth of information that will be of use to all students, bioengineers, materials scientists, chemists, physicians and surgeons concerned with the properties, performance, and the application of tissue engineering scaffolds in clinical settings.

Download or read book Detection of Fatigue Crack Growth Using Nondestructive Testing Methods written by Zoran Stankovic and published by . This book was released on 2009 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fatigue Crack Growth in Rubber Materials written by Gert Heinrich and published by Springer Nature. This book was released on 2021-03-23 with total page 491 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book summarizes recent international research and experimental developments regarding fatigue crack growth investigations of rubber materials. It shows the progress in fundamental as well as advanced research of fracture investigation of rubber material under fatigue loading conditions, especially from the experimental point of view. However, some chapters will describe the progress in numerical modeling and physical description of fracture mechanics and cavitation phenomena in rubbers. Initiation and propagation of cracks in rubber materials are dominant phenomena which determine the lifetime of these soft rubber materials and, as a consequence, the lifetime of the corresponding final rubber parts in various fields of application. Recently, these phenomena became of great scientific interest due to the development of new experimental methods, concepts and models. Furthermore, crack phenomena have an extraordinary impact on rubber wear and abrasion of automotive tires; and understanding of crack initiation and growth in rubbers will help to support the growthing number of activities and worldwide efforts of reduction of tire wear losses and abrasion based emissions.

Download or read book Biomechanics of Hard Tissues written by Andreas Öchsner and published by John Wiley & Sons. This book was released on 2011-08-08 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph assembles expert knowledge on the latest biomechanical modeling and testing of hard tissues, coupled with a concise introduction to the structural and physical properties of bone and cartilage. A strong focus lies on the current advances in understanding bone structure and function from a materials science perspective, providing practical knowledge on how to model, simulate and predict the mechanical behavior of bone. The book presents directly applicable methods for designing and testing the performance of artificial bones and joint replacements, while addressing innovative and safe approaches to stimulated bone regeneration essential for clinical researchers.

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:

Download or read book Structural Biomaterials written by Cuie Wen and published by Woodhead Publishing. This book was released on 2021-04-06 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Structural Biomaterials: Properties, Characteristics, and Selection serves as a single point of reference to digest current research and develop a deeper understanding in the field of biomaterials engineering. This book uses a materials-focused approach, allowing the reader to quickly access specific, detailed information on biomaterials characterization and selection. Relevant to a range of readers, this book provides holistic coverage of the broad categories of structural biomaterials currently available and used in medical applications, highlighting the property requirements for structural biomaterials, their biocompatibility performance and their safety regulation in key categories such as metals, ceramics and polymers. The materials science perspective of this text ensures the content is accessible even to those without an extensive background in applied medicine, positioning this text not just for students, but as an overview and reference for researchers, scientists and engineers entering the field from related materials science disciplines. Provides a unique, holistic approach, covering key biomaterials categories in one text, including metals, ceramics and polymers Discusses advantages, disadvantages, biocompatibility performance and safety regulations, allowing for accurate materials selection in medical applications Utilizes a materials science perspective, allowing those without an extensive applied medical background to learn about the field