Описание: Discontinuous long fiber-reinforced polymer structures with local continuous fiber reinforcements represent an important class of lightweight materials with broad design possibilities and various technical applications, eg, in vehicle construction. However, in contrast to continuous fiber-reinforced composites, extensively used in the aircraft industry, there is still a lack of integrated and experimentally proven concepts for manufacture, modeling, and dimensioning of combinations of discontinuously and continuously reinforced polymer structures. This is partly ascribed to the complexity of the manufacturing processes of discontinuously reinforced polymers, heterogeneous, anisotropic, and nonlinear material and structural properties, but also to the resulting bonding problem of both material types.This book addresses these issues, including both continuous and discontinuous fiber processing strategies. Specific design strategies for advanced composite reinforcement are provided with an integrated and holistic approach for composites material selection, product design, and mechanical properties. Characterization, simulation, technology, design, future research, and implementation directions are also included.In the field of application of three-dimensional load-bearing structures, this book provides an excellent foundation for the enhancement of scientific methods and engineers who need an interdisciplinary understanding of process and materials techniques, as well as simulation and product development methods.
Описание: Offers an introduction to the discontinuous finite element method. This book provides a review of the fundamental laws and equations governing thermal and fluid systems. It also explains mesh generation and adaptivity, parellelization algorithms and error analysis.
Автор: Lujun Huang; Lin Geng Название: Discontinuously Reinforced Titanium Matrix Composites ISBN: 9811044473 ISBN-13(EAN): 9789811044472 Издательство: Springer Рейтинг: Цена: 16769.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This book introduces readers to titanium matrix composites (TMCs) with novel network microstructures.
Multi-scale modelling of composites is a very relevant topic in composites science. This is illustrated by the numerous sessions in the recent European and International Conferences on Composite Materials, but also by the fast developments in multi-scale modelling software tools, developed by large industrial players such as Siemens (Virtual Material Characterization toolkit and MultiMechanics virtual testing software), MSC/e-Xstream (Digimat software), Simulia (micromechanics plug-in in Abaqus), HyperSizer (Multi-scale design of composites), Altair (Altair Multiscale Designer)
This book is intended to be an ideal reference on the latest advances in multi-scale modelling of fibre-reinforced polymer composites, that is accessible for both (young) researchers and end users of modelling software. We target three main groups:
This book aims at a complete introduction and overview of the state-of-the-art in multi-scale modelling of composites in three axes:
- ranging from prediction of homogenized elastic properties to nonlinear material behaviour
- ranging from geometrical models for random packing of unidirectional fibres over meso-scale geometries for textile composites to orientation tensors for short fibre composites
- ranging from damage modelling of unidirectionally reinforced composites over textile composites to short fibre-reinforced composites
The book covers the three most important scales in multi-scale modelling of composites: (i) micro-scale, (ii) meso-scale and (iii) macro-scale. The nano-scale and related atomistic and molecular modelling approaches are deliberately excluded, since the book wants to focus on continuum mechanics and there are already a lot of dedicated books about polymer nanocomposites.
A strong focus is put on physics-based damage modelling, in the sense that the chapters devote attention to modelling the different damage mechanisms (matrix cracking, fibre/matrix debonding, delamination, fibre fracture, ...) in such a way that the underlying physics of the initiation and growth of these damage modes is respected.
The book also gives room to not only discuss the finite element based approaches for multi-scale modelling, but also much faster methods that are popular in industrial software, such as Mean Field Homogenization methods (based on Mori-Tanaka and Eshelby solutions) and variational methods (shear lag theory and more advanced theories).
Since the book targets a wide audience, the focus is put on the most common numerical approaches that are used in multi-scale modelling. Very specialized numerical methods like peridynamics modelling, Material Point Method, eXtended Finite Element Method (XFEM), isogeometric analysis, SPH (Smoothed Particle Hydrodynamics), ... are excluded.
Outline of the book
The book is divided in three large parts, well balanced with each a similar number of chapters:
Part I deals with all ingredients to start with multi-scale modelling, limited to elastic property prediction. This typically includes: (i) setting up your geometrical model at micro- or meso-scale (definition of Representative Volume Element (RVE) or Repeating Unit Cell (RUC)), (ii) definition of periodic boundary conditions, (iii) homogenization of the elastic properties, starting from the elastic properties of the constituents, (iv) importance of statistical representation of geometry and stochastic nature of fibre architecture. This should bring all readers at the same level of principles and terminology for multi-scale modelling. Advanced users could eventually skip this first part.
Part II deals with nonlinear multi-scale modelling. We build further upon the ingredients from Part I, but now add all kinds of nonlinearities to the simulation at micro- or meso-scale (matrix cracking, delamination, fibre/matrix debonding, delamination, fibre failure, visco-elasto-plasticity-dama
Описание: This book provides a comprehensive introduction to the unique theory developed over years of research on materials and process modelling and its application in metal forming technologies.
Описание: Beginning with the publication ohe first edition in 1991, this has been one of the top selling books in the field. It has been used as a required text in over 100 universities worldwide and has become an indispensable reference for thousands of practicing engineers. The Third Edition reflects recent advances in the field, although it still retains the characteristics that made it a best selling title. Providing a thorough coverage of a wide range of topics, this book covers both theoretical and practical aspects of fracture mechanics and integrates materials science with solid mechanics. This edition includes expanded coverage of weight functions and a new chapter on environmental cracking.
Автор: Mobasher, Barzin Название: Mechanics of Fiber and Textile Reinforced Cement Composites ISBN: 0367382385 ISBN-13(EAN): 9780367382384 Издательство: Taylor&Francis Рейтинг: Цена: 10104.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание:
Among all building materials, concrete is the most commonly used-and there is a staggering demand for it. However, as we strive to build taller structures with improved seismic resistance or durable pavement with an indefinite service life, we require materials with better performance than the conventional materials used today. Considering the enormous investment in public infrastructure and society's need to sustain it, the need for new and innovative materials for the repair and rehabilitation of civil infrastructure becomes more evident. These improved properties may be defined in terms of carbon footprint, life-cycle cost, durability, corrosion resistance, strength, ductility, and stiffness.
Addressing recent trends and future directions, Mechanics of Fiber and Textile Reinforced Cement Composites presents new opportunities for developing innovative and cost-effective materials and techniques in cement and concrete composites manufacturing, testing, and design. The book offers mathematical models, experimental results, and computational algorithms for efficient designs with fiber and textile reinforced composite systems. It explores alternative solutions using blended cements, innovative reinforcing systems, natural fibers, experimental characterization of key parameters used for design, and optimized designs. Each chapter begins with a detailed introduction, supplies a thorough overview of the existing literature, and sets forth the reasoning behind the experimentation and theory.
Documenting the composite action of fibers and textiles, the book develops and explains methods for manufacturing and testing cement composites. Methods to design and analyze structures for reduced weight, increased durability, and minimization of cement use are also examined. The book demonstrates that using a higher volume fraction of fiber systems can result in composites that are quasi-elastic plastic. Speaking to the need to
Автор: Lin Jianguo Название: Fundamentals of Materials Modelling for Metals Processing Te ISBN: 1783264977 ISBN-13(EAN): 9781783264971 Издательство: World Scientific Publishing Рейтинг: Цена: 8870.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This book provides a comprehensive introduction to the unique theory developed over years of research on materials and process modelling and its application in metal forming technologies.
Описание: Proceedings of the NATO Advanced Research Workshop on Application of Fracture Mechanics to Cementitious Composites, Northwestern University, Evanston, Illinois, USA, September 4-7, 1984
Автор: Gandhi Umesh, Goris Sebastian, Osswald Tim A. Название: Discontinuous Fiber Reinforced Composites: Fundamentals and Applications ISBN: 1569906947 ISBN-13(EAN): 9781569906941 Издательство: Elsevier Science Рейтинг: Цена: 11641.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Provides the theoretical and practical background to design and use discontinuous fiber-reinforced polymer materials, with an emphasis on structural parts for the automotive industry. Moreover, the product of years of collaborative work between industry and academia is presented in an easy-to-use, comprehensive manner.
Автор: Goh Название: Discontinuous-Fibre Reinforced Composites ISBN: 1447173031 ISBN-13(EAN): 9781447173038 Издательство: Springer Рейтинг: Цена: 16769.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This book provides a simple and unified approach to the mechanics of discontinuous-fibre reinforced composites, and introduces readers as generally as possible to the key concepts regarding the mechanics of elastic stress transfer, intermediate modes of stress transfer, plastic stress transfer, fibre pull-out, fibre fragmentation and matrix rupture. These concepts are subsequently applied to progressive stages of the loading process, through to the composite fractures. The book offers a valuable guide for advanced undergraduate and graduate students attending lecture courses on fibre composites. It is also intended for beginning researchers who wish to develop deeper insights into how discontinuous fibre provides reinforcement to composites, and for engineers, particularly those who wish to apply the concepts presented here to design and develop discontinuous-fibre reinforced composites.
Описание: This book offers a detailed analysis of a quasi-static fracture process in concrete and reinforced concrete by means of constitutive models formulated within continuum mechanics, using both continuous and discontinuous modeling approaches.
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