Download or read book Development and Validation of Hybrid Continuum structural Finite Element Model for Evaluating Foot and Ankle Biomechanics written by Saif Alrafeek and published by . This book was released on 2018 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bone is composed of two structures: compact bone and spongy bone. Spongy bone porosity highly affects the strength and the physical endurance of bone to carry loads. Most studies use continuum finite element (FE) approaches to model spongy bone and neglect porosity. Neglecting porosity may not efficiently assist orthopaedic surgeons to treat patients who experience bone physical disability. The purpose of this study is to demonstrate an inexpensive approach that simulates spongy bone with more accurate capturing of porosity and less requirements of bone information. The approach is developed through investigating the mechanical characteristics of spongy bone; that is, by creating and analyzing a structural FE model composed of stochastically oriented structural elements or "beams". Each beam element represents a trabecula. In addition, this study investigates the experimental complex biomechanics of foot and ankle bones loaded in eversion/inversion. Further, this study provides a structural-anatomical description that explains the effect of subtalar joint anatomy and screw constructs on its torsional rigidity.
Download or read book Finite Element Modeling of the Foot written by Vara Isvilanonda and published by . This book was released on 2015 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: Finite element (FE) foot modeling is a useful tool for investigating foot and ankle biomechanics. Such models can provide insight into internal soft tissue behavior of the foot and are ideal for conducting parametric analyses. Many of the previous FE foot models simulated quasi-static loads and imposed major simplifications on anatomy and material properties, which could compromise their accuracy and usefulness. The purpose of this study was to develop and validate two subject-specific FE foot models (normal and diabetic) capable of simulating both quiet stance (quasi-static loading) and the stance phase of gait (dynamic loading), and to explore the plantar pressure and internal soft tissue stress distribution under these two loading conditions. The models included subject-specific bone, skin, muscle and fat anatomy obtained from CT and MR imaging data. Subject-specific hyperelastic material properties for each soft tissue were determined from inverse FE analysis of gated MRI compression experiments. Ligaments, tendons, and joint cavities were modeled more accurately based on the medical images. Four regions of the plantar aponeurosis were modeled with non-linear material properties obtained from cadaveric mechanical testing. The models were validated with in vivo experimental data collected in-house and with literature data under three loading conditions: passive compression, quiet stance, and the stance phase of gait, by analyzing bone kinematics, ground reaction forces (GRFs), plantar pressure, plantar aponeurosis force and ankle joint force. The subject-specific models were capable of simulating physiologic quiet stance and dynamic gait conditions. The vertical GRF, plantar pressure distribution, bone kinematics, plantar aponeurosis force and ankle joint force were reproduced in the model. The von Mises and hydrostatic stress predictions provided insight into the specific location and time of the peak internal stress, which suggested regions of elevated injury risk as well as possible mechanisms of injury. The model's ability to effectively perform parametric analyses was demonstrated by investigating the effect of soft tissue simplifications on plantar pressure and internal stress. The protocols and mechanical test data outlined in this study will serve as a guide line for future FE foot model development. The models of the normal and diabetic subject developed in this dissertation are useful tools for exploring and generating clinically effective treatments for foot and ankle pathology.
Download or read book Basic Finite Element Method as Applied to Injury Biomechanics written by King-Hay Yang and published by Academic Press. This book was released on 2017-09-22 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt: Basic Finite Element Method as Applied to Injury Biomechanics provides a unique introduction to finite element methods. Unlike other books on the topic, this comprehensive reference teaches readers to develop a finite element model from the beginning, including all the appropriate theories that are needed throughout the model development process. In addition, the book focuses on how to apply material properties and loading conditions to the model, how to arrange the information in the order of head, neck, upper torso and upper extremity, lower torso and pelvis and lower extremity. The book covers scaling from one body size to the other, parametric modeling and joint positioning, and is an ideal text for teaching, further reading and for its unique application to injury biomechanics. With over 25 years of experience of developing finite element models, the author's experience with tissue level injury threshold instead of external loading conditions provides a guide to the "do’s and dont's" of using finite element method to study injury biomechanics. Covers the fundamentals and applications of the finite element method in injury biomechanics Teaches readers model development through a hands-on approach that is ideal for students and researchers Includes different modeling schemes used to model different parts of the body, including related constitutive laws and associated material properties
Download or read book Finite Element Method and Medical Imaging Techniques in Bone Biomechanics written by Rabeb Ben Kahla and published by John Wiley & Sons. This book was released on 2020-01-02 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Digital models based on data from medical images have recently become widespread in the field of biomechanics. This book summarizes medical imaging techniques and processing procedures, both of which are necessary for creating bone models with finite element methods. Chapter 1 introduces the main principles and the application of the most commonly used medical imaging techniques. Chapter 2 describes the major methods and steps of medical image analysis and processing. Chapter 3 presents a brief review of recent studies on reconstructed finite element bone models, based on medical images. Finally, Chapter 4 reveals the digital results obtained for the main bone sites that have been targeted by finite element modeling in recent years.
Download or read book Development and Validation of a Finite Element Model of Human Lower Limb written by Costin Daniel Untaroiu and published by . This book was released on 2005 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Finite Elements in Biomechanics written by Richard H. Gallagher and published by John Wiley & Sons. This book was released on 1982 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development and Validation of Patient specific Finite Element Models of Patients with Total Hip Arthroplasty written by Vickie Bo-Kyung Shim and published by . This book was released on 2006 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development Validation and Clinical Application of the Finite Element Model of Human Pelvis written by Alexander A. Ivanov and published by . This book was released on 2008 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: Finite element analysis became a very effective and essential tool in the studies of spinal and pelvic biomechanics. Most previous pelvic models included such simplifications as non-complete pelvic structures presentation, non-physiologic properties of ligaments, model validation against just only one mode. Out study is the first attempt, to our knowledge, to generate model with physiologic non-linear characteristic of the ligamentous structures of sacroiliac joint and accurate presentation of entirely pelvic anatomy. The model validation against data in literature showed good prediction of motions in the sacroiliac joint and stress-distribution across pelvic bone. The clinical application showed increased motions and stresses across sacroiliac joint which were not previously confirmed by the clinical and experimental studies due to their low sensitivity and specificity. The developed finite element human pelvis model might be a useful instrument in further clinical and biomechanical studies.
Download or read book Accidental Injury written by Narayan Yoganandan and published by Springer. This book was released on 2014-11-17 with total page 855 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a state-of-the-art look at the applied biomechanics of accidental injury and prevention. The editors, Drs. Narayan Yoganandan, Alan M. Nahum and John W. Melvin are recognized international leaders and researchers in injury biomechanics, prevention and trauma medicine. They have assembled renowned researchers as authors for 29 chapters to cover individual aspects of human injury assessment and prevention. This third edition is thoroughly revised and expanded with new chapters in different fields. Topics covered address automotive, aviation, military and other environments. Field data collection; injury coding/scaling; injury epidemiology; mechanisms of injury; human tolerance to injury; simulations using experimental, complex computational models (finite element modeling) and statistical processes; anthropomorphic test device design, development and validation for crashworthiness applications in topics cited above; and current regulations are covered. Risk functions and injury criteria for various body regions are included. Adult and pediatric populations are addressed. The exhaustive list of references in many areas along with the latest developments is valuable to all those involved or intend to pursue this important topic on human injury biomechanics and prevention. The expanded edition will interest a variety of scholars and professionals including physicians, biomedical researchers in many disciplines, basic scientists, attorneys and jurists involved in accidental injury cases and governmental bodies. It is hoped that this book will foster multidisciplinary collaborations by medical and engineering researchers and academicians and practicing physicians for injury assessment and prevention and stimulate more applied research, education and training in the field of accidental-injury causation and prevention.
Download or read book Developments and Novel Approaches in Biomechanics and Metamaterials written by Bilen Emek Abali and published by Springer Nature. This book was released on 2020-07-06 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a selection of cutting-edge methods that allow readers to obtain novel models for nonlinear solid mechanics. Today, engineers need more accurate techniques for modeling solid body mechanics, chiefly due to innovative methods like additive manufacturing—for example, 3D printing—but also due to miniaturization. This book focuses on the formulation of continuum and discrete models for complex materials and systems, and especially the design of metamaterials. It gathers outstanding papers from the international conference IcONSOM 2019
Download or read book Innovations in Biomedical Engineering written by Marek Gzik and published by Springer Nature. This book was released on 2022-05-31 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the latest developments in the field of biomedical engineering and includes practical solutions and strictly scientific considerations. The development of new methods of treatment, advanced diagnostics or personalized rehabilitation requires close cooperation of experts from many fields, including, among others, medicine, biotechnology and finally biomedical engineering. The latter, combining many fields of science, such as computer science, materials science, biomechanics, electronics not only enables the development and production of modern medical equipment, but also participates in the development of new directions and methods of treatment. The presented monograph is a collection of scientific papers on the use of engineering methods in medicine. The topics of the work include both practical solutions and strictly scientific considerations expanding knowledge about the functioning of the human body. We believe that the presented works will have an impact on the development of the field of science, which is biomedical engineering, constituting a contribution to the discussion on the directions of development of cooperation between doctors, physiotherapists and engineers. We would also like to thank all the people who contributed to the creation of this monograph—both the authors of all the works and those involved in technical works.
Download or read book Functional Tissue Engineering written by Farshid Guilak and published by Springer Science & Business Media. This book was released on 2003-07-09 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: -Softcover reprint of a successful hardcover reference (370 copies sold) -Price to be accessible to the rapidly increasing population of students and investigators in the field of tissue engineering -Chapters written by well-known researchers discuss issues in functional tissue engineering as well as provide guidelines and a summary of the current state of technology
Download or read book Design and Modeling of Mechanical Systems III written by Mohamed Haddar and published by Springer. This book was released on 2017-11-25 with total page 1225 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a collection of original peer-reviewed contributions presented at the 7th International Congress on Design and Modeling of Mechanical Systems (CMSM’2017), held in Hammamet, Tunisia, from the 27th to the 29th of March 2017. It reports on both research findings, innovative industrial applications and case studies concerning mechanical systems and related to modeling and analysis of materials and structures, multiphysics methods, nonlinear dynamics, fluid structure interaction and vibroacoustics, design and manufacturing engineering. Continuing on the tradition of the previous editions, this proceedings offers a broad overview on the state-of-the art in the field and a useful resource for academic and industry specialists active in the field of design and modeling of mechanical systems. CMSM’2017 was jointly organized by two leading Tunisian research laboratories: the Mechanical, Modeling and Manufacturing Laboratory of the National Engineering School of Sfax and the Mechanical Engineering Laboratory of the National Engineering School of Monastir..
Download or read book Biomechanical Basis of Human Movement written by Joseph Hamill and published by LWW. This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focusing on the quantitative nature of biomechanics, this book integrates current literature, meaningful numerical examples, relevant applications, hands-on exercises, and functional anatomy, physics, calculus, and physiology to help students - regardless of their mathematical background - understand the full continuum of human movement potential.
Download or read book Military Injury Biomechanics written by Melanie Franklyn and published by CRC Press. This book was released on 2017-06-12 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: Military Injury Biomechanics: The Cause and Prevention of Impact Injuries is a reference manual where information and data from a large number of sources, focussing on injuries related to military events, has been critically reviewed and discussed. The book covers the cause and prevention of impact injuries to all the major body regions, while topics such as the historical background of military impact biomechanics, the history and use of anthropomorphic test devices for military applications and the medical management of injuries are also discussed. An international team of experts have been brought together to examine and review the topics. The book is intended for researchers, postgraduate students and others working or studying defence and impact injuries.
Download or read book Lymphedema written by Byung-Boong Lee and published by Springer. This book was released on 2018-01-10 with total page 939 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of this book serves as a central source of theoretical and practical knowledge to optimize the evaluation and treatment of patients with lymphedema. The book covers all aspects of the disease from anatomical and histological features to diagnosis as well as physical/medical and surgical management of the disease. Updated from the first edition to reflect the substantial progress in diagnostics, medical care and surgical intervention for this patient population, this volume has been reorganized to meet today’s practice requirements. It addresses the challenges faced by clinicians in the management of chronic lymphedema enabling them to meet the medical needs of this large patient community. Edited by world leaders in Vascular Medicine and Surgery, this comprehensive volume provides clear, concise background and recommendations in an easy-to-use format. It is a valuable reference tool for clinical practitioners (physicians/nurse practitioners/technicians) who wish to deliver state-of-the-art health care to their patients with lymphatic and venous disorders.
Download or read book Representative Volume Elements and Unit Cells written by Shuguang Li and published by Woodhead Publishing. This book was released on 2019-11-19 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numerical methods to estimate material properties usually involve analysis of a representative volume element (RVE) or unit cell (UC). The representative volume element (RVE) or unit cell (UC) is the smallest volume over which a measurement can be made that will yield a value representative of the whole. RVEs and UCs are widely used in the characterisation of materials with multiscale architectures such as composites. However, finite element (FE) software packages such as Abaqus and Comsol MultiPhysics do not offer the capability for RVE and UC modelling directly on their own. To apply them to analyse RVEs and UCs, the generation of the FE models for them, the imposition of boundary conditions, and the extraction of directly relevant results are essentially the responsibility of the user. These have tended to be incorrectly implemented by users! For the first time, this book will provide a comprehensive account on correct modelling of RVEs and UCs, which will eliminate any uncertainties and ambiguities.The book offers a complete and thorough review on the subject of RVEs and UCs, establishing a framework on a rigorous mathematical and mechanical basis to ensure that basic concepts, such as symmetry and free body diagrams, are applied correctly and consistently. It also demonstrates to readers that rigorous applications of mathematics and mechanics are meant to make things clear, consistent, thorough and, most of all, simple and easy to follow, rather than the opposite as many perceive. As a result, the book shows that the appropriate use of RVEs and UCs can deliver an effective and reliable means of material characterisation. It not only provides a much needed comprehensive account on material characterisation but, more importantly, explains how such characterisation can be conducted in a consistent and systematic manner. It also includes a ready-to-use open source code for UCs that can be downloaded from a companion site for potential users to utilise, adapt and expand as they wish. The companion site for the book can be found at https://www.elsevier.com/books-and-journals/book-companion/9780081026380 The theories presented in this book will give users more confidence when applying RVE and UC models to analyse materials of complex architectures with accuracy and efficiency Systematic explanations of RVE and UC theories have been included, as well as their applications in composites It illustrates in detail how to set up UC models and provides an open source code to implement via Abaqus
