The Physical Testing And Modelling Of Hyperelastic Materials For Finite Element Analysis
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The Physical Testing And Modelling Of Hyperelastic Materials For Finite Element Analysis
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Author : Raphaël Johannknecht
language : en
Publisher:
Release Date : 1999
The Physical Testing And Modelling Of Hyperelastic Materials For Finite Element Analysis written by Raphaël Johannknecht and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with categories.
Finite Element Analysis Of Elastomers
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Author : David Boast
language : en
Publisher:
Release Date : 1999
Finite Element Analysis Of Elastomers written by David Boast and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Mathematics categories.
Written by leading researchers and practitioners, Finite Element Analysis of Elastomers blends established knowledge in this important area with up-to-date research topics, practical hints and thought-provoking new ideas. The Editors, have compiled contributions by leading researchers and practitioners in finite element analysis (FEA): the result is an authoritative and agenda-setting volume. Finite element modelling can only be as good as the constitutive laws (material models) used, the means of obtaining and fitting the data for those models, and the accuracy of the boundary conditions. (The latter is of particular importance in cases of contact.) All three questions recieve particular attention in this book, as do aspects such as the interpretation and accuracy of FE outputs, with many practical examples being given. There is a short section on fatigue and failure, where particular concerns and approaches in this challenging area are discussed. Comprehensive coverage is given to particular issues concerning the problems of working with real elastomers, especially filled materials. Key features include: Constitutive laws for hyperelastic and inelastic aspects of behaviour Appropriate test methods Curve fitting to obtain constants for constitutive laws Interpretation of finite element results Modelling of crack growth Example applications.
Material Modeling In Finite Element Analysis
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Author : Zhaochun Yang
language : en
Publisher: CRC Press
Release Date : 2023-11-09
Material Modeling In Finite Element Analysis written by Zhaochun Yang and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-11-09 with Technology & Engineering categories.
Finite element analysis has been widely applied in mechanical, civil, and biomedical designs. This new edition provides the readers with comprehensive views of various material models through practical examples, which will help them better understand various materials and build appropriate material models in finite element analysis. Material Modeling in Finite Element Analysis, Second Edition, consists of four main parts: (1) metals, (2) polymers, (3) soils, and (4) modern materials. Each part starts with the structure and function of different materials and then follows the corresponding material models and the temperature and time effects on the material models. The final part focuses on user subroutines such as UserMat and UserHyper. This book presents some specific problems including the metal-forming process, combustion room, Mullins effect of rubber tires, viscoelasticity of liver soft tissues, small punch test, tunnel excavation, slope stability, concrete slump test, orthodontic wire, and piezoelectric microaccelerometer. All modeling files are provided in the appendices of this book. This book would be helpful for graduate students and researchers in the mechanical, civil, and biomedical fields who conduct finite element analysis. This book provides all readers with a comprehensive understanding of modeling various materials.
Investigation Of The Impact Of Increasing Design Loads Of A Conventional Structural Silicone Joint Using Finite Element Analysis And Hyperelastic Material Properties
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Author : John A. Knowles
language : en
Publisher:
Release Date : 2015
Investigation Of The Impact Of Increasing Design Loads Of A Conventional Structural Silicone Joint Using Finite Element Analysis And Hyperelastic Material Properties written by John A. Knowles and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Adhesives categories.
Design methodology for structural silicone glazed curtain wall assembly has been well established for many decades with proven performance of building projects around the globe. At its core, the design methodology is based on the individual performance of the materials, and the assembly is designed using physical and geometric principles to perform within an expected load and deflection which usually are confirmed via experiential confirmation via mock-up assemblies. Structural silicone performance and allowable design stress is based on physical relationships of stress due to the strain of a proto-typical joint. There has been recent interest in exploring increased or modified design stress of sealants based on similar methodology. However, the challenge in the methodology is that silicone materials behave as hyperelastic elastomers which indicate that the relationship of stress versus strain is not linear and the materials behave with different moduli depending on the location of the allowable stress on the stress-strain curve. Using finite element models, the paper presents a comparative analysis of a structural silicone joint designed via the conventional hand calculation at different design loads. The analysis illustrates the higher potential stress peaks developed within the sealant during loading versus the expected stress from the conventional method of calculation. Frame deflection and glass thickness were also factored to understand the variables' impact to the distribution of stresses in the sealant joint compared to the original stress predicted from conventional methods of design. Methods to calibrate the actual material model used in the finite element software for hyperelastic materials are also presented. Physical assemblies were tested to compare the results of the software model, which also includes a modified test procedure to better understand the durability of the materials due to cyclical testing.
Constitutive Models For Rubber X
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Author : Alexander Lion
language : en
Publisher: CRC Press
Release Date : 2017-08-15
Constitutive Models For Rubber X written by Alexander Lion and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-08-15 with Technology & Engineering categories.
In order to develop innovative products, to reduce development costs and the number of prototypes and to accelerate development processes, numerical simulations become more and more attractive. As such, numerical simulations are instrumental in understanding complicated material properties like chemical ageing, crack propagation or the strain- and temperature-induced crystallisation of rubber. Therefore, experimentally validated and physically meaningful constitutive models are indispensable. Elastomers are used for products like tyres, engine and suspension mounts or seals, to name a few. The interest in modelling the quasi-static stress-strain behaviour was dominant in the past decades, but nowadays the interests also include influences of environmental conditions. The latest developments on the material behaviour of elastomers are collected in the present volume. Constitutive Models for Rubber X is a comprehensive compilation of nearly all oral and poster contributions to the European Conference on Constitutive Models for Rubber (Munich, 28-31 August 2017). The 95 highly topical contributions reflect the state of-the-art in material modelling and testing of elastomers. They cover the fields of material testing and processing, filler reinforcement, electromagnetic sensitive elastomers, dynamic properties, constitutive modelling, micromechanics, finite element implementation, stress softening, chemical ageing, fatigue and durability. In the area of rubbery materials and structures, applied research will play an important role also in the coming decades. Constitutive Models for Rubber X is of interest to developers and researchers involved in the rubber processing and CAE software industries, as well as for academics in nearly all disciplines of engineering and material sciences.
Constitutive Models For Rubber Vii
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Author : Stephen Jerrams
language : en
Publisher: CRC Press
Release Date : 2011-09-09
Constitutive Models For Rubber Vii written by Stephen Jerrams and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-09-09 with Technology & Engineering categories.
All aspects of our lives, industry, health, travel and leisure, are utterly reliant on rubber materials, yet typically this notion rarely occurs to us. Increasingly, greater demands are made on elastomeric compounds and we seek elevated performance in terms of improved physical and chemical properties. In particular, we have come to expect rubber components (tyres, vibration isolators, seals etc) to exhibit exceptional wear and fatigue resistance, often at elevated temperatures. Unsurprisingly then, the emphasis in characterising isochoric materials has shifted significantly away from understanding and modelling hyperelastic material behaviour, to a position where we can confi dently design and manufacture rubber components having the functionality and resilience to meet the dynamic loading and harsh environmental conditions that are prevalent today. In consequence, state-of-the-art technology in terms of dynamic response and fatigue resistance are strongly represented here along with numerous insights into advanced elastomers used in novel applications. This development is not at the expense of research devoted to current test procedures and the constitutive equations and algorithms that underpin finite element methods. As a result, Constitutive Models for Rubber VII is not only essential reading for undergraduates, postgraduates, academics and researchers working in the discipline, but also for all those designers and engineers involved in the improvement of machines and devices by introducing new and novel elastomers possessing elevated properties.
A Simple Transversely Isotropic Hyperelastic Constitutive Model Suitable For Finite Element Analysis Of Elastomers
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Author :
language : en
Publisher:
Release Date : 2011
A Simple Transversely Isotropic Hyperelastic Constitutive Model Suitable For Finite Element Analysis Of Elastomers written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Elastomers categories.
A transversely isotropic fiber reinforced elastomer's hyperelasticity is characterized using a series of constitutive tests (uniaxial tension, uniaxial compression, simple shear, and constrained compression test). The material is found to be nearly incompressible. A suitable transversely isotropic hyperelastic invariant based strain energy function is found to provide a reasonable fit of the material data. This material model is implemented in a finite element method by creating a user subroutine for a commercial finite element code. Finite element analysis of the tests confirms the suitability of the proposed strain energy function for small to moderate stress analysis of fiber reinforced elastomers. A method of determining the material coefficients for this efficient stable hyperelastic model from simple laboratory tests is demonstated.
Advanced Elastomers
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Author : Anna Boczkowska
language : en
Publisher: BoD – Books on Demand
Release Date : 2012-09-12
Advanced Elastomers written by Anna Boczkowska and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-09-12 with Science categories.
This book provides an extensive overview of current trends in the area of elastomers and their composites from the chapters contributed by internationally recognized specialists. The book deals with novel synthesis, modelling and experimental methods in elastomers. Contents include: new approach to crosslinking, liquid crystal elastomers, nanocomposites, smart elastomers, elastomers in microelectronics and microfluidics, elastomers in cement concrete and mortar, experimental testing and modelling. Each section demonstrates how enhancements in materials, processes and characterization techniques can improve performance in the field of engineering. The book provides a unique opportunity to discover the latest research on elastomer advances from laboratories around the world. This book addresses to industrial and academic researchers in the fields of physical, chemical, biological sciences and engineering.
Troubleshooting Finite Element Modeling With Abaqus
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Author : Raphael Jean Boulbes
language : en
Publisher: Springer Nature
Release Date : 2019-09-06
Troubleshooting Finite Element Modeling With Abaqus written by Raphael Jean Boulbes and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-09-06 with Technology & Engineering categories.
This book gives Abaqus users who make use of finite-element models in academic or practitioner-based research the in-depth program knowledge that allows them to debug a structural analysis model. The book provides many methods and guidelines for different analysis types and modes, that will help readers to solve problems that can arise with Abaqus if a structural model fails to converge to a solution. The use of Abaqus affords a general checklist approach to debugging analysis models, which can also be applied to structural analysis. The author uses step-by-step methods and detailed explanations of special features in order to identify the solutions to a variety of problems with finite-element models. The book promotes: • a diagnostic mode of thinking concerning error messages; • better material definition and the writing of user material subroutines; • work with the Abaqus mesher and best practice in doing so; • the writing of user element subroutines and contact features with convergence issues; and • consideration of hardware and software issues and a Windows HPC cluster solution. The methods and information provided facilitate job diagnostics and help to obtain converged solutions for finite-element models regarding structural component assemblies in static or dynamic analysis. The troubleshooting advice ensures that these solutions are both high-quality and cost-effective according to practical experience. The book offers an in-depth guide for students learning about Abaqus, as each problem and solution are complemented by examples and straightforward explanations. It is also useful for academics and structural engineers wishing to debug Abaqus models on the basis of error and warning messages that arise during finite-element modelling processing.
Constitutive Models For Rubber Vi
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Author : Gert Heinrich
language : en
Publisher: CRC Press
Release Date : 2009-09-01
Constitutive Models For Rubber Vi written by Gert Heinrich and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-09-01 with Technology & Engineering categories.
Recent developments in order to represent the material behaviour of filler-reinforced elastomers under realistic operating conditions are collected in this volume. Special topics are finite element simulations and methods, dynamic material properties, experimental characterization, lifetime prediction, friction, multiphysics and biomechanics, reinf