Issues In The Analysis And Testing Of Textile Composites With Large Representative Volume Elements

Author : Gerd Weissenbach
Publisher : Universal-Publishers
Page : 298 pages
File Size : 48,6 Mb
Release : 2004-12
Category : Business & Economics
ISBN : 9781581122459

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Issues in the Analysis and Testing of Textile Composites with Large Representative Volume Elements by Gerd Weissenbach Pdf

The high degree of heterogeneity of textile composites was found to be the primary problem in analysis and testing. A concept was developed based on a description of the local variation of the material stiffness matrix using a spline interpolation. The role of this stiffness function is to facilitate the calculation of the material stiffness matrix at any given position or for arbitrary domains in the form of finite elements.Based on this approach, two different methods were developed. In the first method the average material stiffness matrix is calculated for a finite element and subsequently the elemental stiffness matrix of this element is assembled. In the second approach the elemental stiffness matrix is calculated directly using the local material stiffness at the integration points of the finite element. This concept was then applied to the plate twist test. The numerical analysis of this test was done in order to determine the influence of heterogeneity on the test results. It was shown that this test measures the in-plane shear modulus largely independent of the representative volume element (RVE) size. Both finite element approaches were then applied to the V-notched beam shear test, to investigate the applicability of this test to the measurement of the shear properties. The test set-up as well as numerical parameters of the finite element analysis of the test were studied. It was possible to derive limits for the applicability of the V-notched beam shear test in terms of RVE size, as well as set up guidelines for the finite element analysis of textile composites. With electronic speckle pattern interferometry, which enables full-field displacement and strain measurements, tensile tests were carried out on 3D-woven textile composite specimens. With the agreement of the experimental results and the theoretical predictions the validity of the developed approach was again shown.

Author : Peter Schwartz
Publisher : Elsevier
Page : 264 pages
File Size : 47,8 Mb
Release : 2008-10-07
Category : Technology & Engineering
ISBN : 9781845695231

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Structure and Mechanics of Textile Fibre Assemblies by Peter Schwartz Pdf

Textile structure and mechanics are fundamental to the way textiles are designed, manufactured, tested and used. Structure and mechanics of textile fibre assemblies discusses aspects of fabric structure and mechanical properties such as tensile, bending and shear properties for a range of fabrics. After a general introduction illustrating the role of fabric structure and mechanics, subsequent chapters discuss the structural, tensile, bending and shear properties of woven, knitted and nonwoven fabrics. Other chapters review the structure and mechanics of yarns, coated fabrics, 2D and 3D textile composites. Testing methods for the measurement of fabric mechanical properties and structure parameters are also explored. With its renowned editor and contributions from some of the world’s leading authorities, Structure and mechanics of textile fibre assemblies is an important reference for textile scientists, technologists, engineers and those designing and manufacturing textiles. It will also be suitable for those within the academic sector. Examines aspects of fabric structure and mechanical properties for a range of fabrics Discusses structure and mechanics of yarn and woven, nonwoven and knitted fabrics Explores testing methods enabling the measurement of fabric mechanical properties and structural parameters

Author : Ignazio Crivelli Visconti
Publisher : Woodhead Publishing
Page : 462 pages
File Size : 52,5 Mb
Release : 1998
Category : Technology & Engineering
ISBN : 1855734095

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ECCM-8 European Conference on Composite Materials by Ignazio Crivelli Visconti Pdf

Author : Anonim
Publisher : Unknown
Page : 598 pages
File Size : 55,5 Mb
Release : 1998
Category : Dissertations, Academic
ISBN : UIUC:30112042453602

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British National Bibliography for Report Literature by Anonim Pdf

Author : Jason P. Carey
Publisher : Elsevier
Page : 552 pages
File Size : 41,7 Mb
Release : 2024-04-29
Category : Technology & Engineering
ISBN : 9780443186035

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Handbook of Advances in Braided Composite Materials by Jason P. Carey Pdf

There has been a major resurgence of braiding in worldwide manufacturing and new testing technologies using imaging processes are now being employed. This has allowed significant findings and a better understanding of braided materials. The Handbook of Advances in Braided Composite Materials, Second Edition extensively reviews the properties, design, and manufacturing, testing and next generation applications of braided composite materials. Following the introductory chapter and the opening topic of working with the enclosed composite apps, Part One discusses manufacturing processes and advanced testing of braided composite materials. Part Two then looks at predicting properties and designing braided composite materials, including mechanics for braided composite materials such as micromechanics, macromechanics and ply mechanics. Advances in 2D and 3D modeling, as well as design of braided composite materials, are also covered. Finally, Part Three provides information on the applications of Next Generation braided composite materials. These topics consist of shape memory composites, nanostructures in braids, electrospinning, braidtrusion and green braids. The book presents up-to-date technology developments and recent research findings, along with an android and IPhone App to support design criteria, which is available via an online open source platform provided by the editor. Industrial manufacturers of braided composites, academic researchers working in the design and development of braided composites, professional engineers and postgraduate students will find this book an essential read. Covers new developments in advanced testing methods and imaging technology Presents new findings in manufacturing and material properties Discusses new developments in sustainable green braided composites, and in 3D braiding

Author : Anonim
Publisher : Unknown
Page : 682 pages
File Size : 43,5 Mb
Release : 1989
Category : Mechanics, Applied
ISBN : UIUC:30112008993542

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Applied Mechanics Reviews by Anonim Pdf

Author : Nicholas Fantuzzi
Publisher : Società Editrice Esculapio
Page : 352 pages
File Size : 52,5 Mb
Release : 2017-07-24
Category : Technology & Engineering
ISBN : 9788893850414

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ICCS20 - 20th International Conference on Composite Structures by Nicholas Fantuzzi Pdf

Composite materials have aroused a great interest over the last few decades, as proven by the huge number of scientific papers and industrial progress. The increase in the use of composite structures in different engineering practices justify the present international meeting where researches from every part of the globe can share and discuss the recent advancements regarding the use of structural components within advanced applications such as buckling, vibrations, repair, reinforcements, concrete, composite laminated materials and more recent metamaterials. Studies about composite structures are truly multidisciplinary and the given contributions can help other researches and professional engineers in their own field. This Conference is suitable as a reference for engineers and scientists working in the professional field, in the industry and the academia and it gives the possibility to share recent advancements in different engineering practices to the outside world. This book aims to collect selected plenary and key-note lectures of this International Conference. For this reason, the establishment of this 20th edition of International Conference on Composite Structures has appeared appropriate to continue what has been begun during the previous editions. ICCS wants to be an occasion for many researchers from each part of the globe to meet and discuss about the recent advancements regarding the use of composite structures, sandwich panels, nanotechnology, bio-composites, delamination and fracture, experimental methods, manufacturing and other countless topics that have filled many sessions during this conference. As a proof of this event, which has taken place in Paris (France), selected plenary and key-note lectures have been collected in the present book.

Author : Anonim
Publisher : Unknown
Page : 652 pages
File Size : 55,5 Mb
Release : 1995
Category : Aeronautics
ISBN : MINN:31951P004956165

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Scientific and Technical Aerospace Reports by Anonim Pdf

Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Author : ASTM Committee D-30 on High Modulus Fibers and Their Composites
Publisher : ASTM International
Page : 428 pages
File Size : 41,8 Mb
Release : 1973
Category : Technology & Engineering
ISBN : 0803107013

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Analysis of the Test Methods for High Modulus Fibers and Composites by ASTM Committee D-30 on High Modulus Fibers and Their Composites Pdf

Author : C. A. Mota Soares,J.A.C. Martins,H.C. Rodrigues,Jorge A.C. Ambrosio,C.A.B. Pina,C.M. Mota Soares,E.B.R. Pereira,J. Folgado
Publisher : Springer Science & Business Media
Page : 861 pages
File Size : 46,5 Mb
Release : 2008-06-05
Category : Technology & Engineering
ISBN : 9781402053702

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III European Conference on Computational Mechanics by C. A. Mota Soares,J.A.C. Martins,H.C. Rodrigues,Jorge A.C. Ambrosio,C.A.B. Pina,C.M. Mota Soares,E.B.R. Pereira,J. Folgado Pdf

III European Conference on Computational Mechanics: Solids, Structures and Coupled Problem in Engineering Computational Mechanics in Solid, Structures and Coupled Problems in Engineering is today a mature science with applications to major industrial projects. This book contains the edited version of the Abstracts of Plenary and Keynote Lectures and Papers, and a companion CD-ROM with the full-length papers, presented at the III European Conference on Computational Mechanics: Solids, Structures and Coupled Problems in Engineering (ECCM-2006), held in the National Laboratory of Civil Engineering, Lisbon, Portugal 5th - 8th June 2006. The book reflects the state-of-art of Computation Mechanics in Solids, Structures and Coupled Problems in Engineering and it includes contributions by the world most active researchers in this field.

Author : Anonim
Publisher : Unknown
Page : 1040 pages
File Size : 48,8 Mb
Release : 1991
Category : Large space structures (Astronautics)
ISBN : STANFORD:36105029331415

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Large Space Structures & Systems in the Space Station Era by Anonim Pdf

Author : Gullapalli Sivaramakrishna,S. Kishore Kumar,B. N. Raghunandan
Publisher : Springer Nature
Page : 633 pages
File Size : 45,7 Mb
Release : 2022-07-23
Category : Technology & Engineering
ISBN : 9789811923784

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Proceedings of the National Aerospace Propulsion Conference by Gullapalli Sivaramakrishna,S. Kishore Kumar,B. N. Raghunandan Pdf

This book presents the select proceedings of the 3rd National Aerospace Propulsion Conference (NAPC 2020). It discusses the recent trends in the area of aerospace propulsion technologies covering both air-breathing and non-air-breathing propulsion. The topics covered include state-of-the-art design, analysis and developmental testing of gas turbine engine modules and sub-systems like compressor, combustor, turbine and alternator; advances in spray injection and atomization; aspects of combustion pertinent to all types of propulsion systems and nuances of space, missile and alternative propulsion systems. The book will be a valuable reference for beginners, researchers and professionals interested in aerospace propulsion and allied fields.

Author : Wim Van Paepegem
Publisher : Woodhead Publishing
Page : 766 pages
File Size : 53,8 Mb
Release : 2020-11-25
Category : Technology & Engineering
ISBN : 9780128189856

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Multi-Scale Continuum Mechanics Modelling of Fibre-Reinforced Polymer Composites by Wim Van Paepegem Pdf

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:

Author : Valery V. Vasiliev,Evgeny V. Morozov
Publisher : Elsevier
Page : 424 pages
File Size : 45,5 Mb
Release : 2001-02-08
Category : Technology & Engineering
ISBN : 9780080536057

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Mechanics and Analysis of Composite Materials by Valery V. Vasiliev,Evgeny V. Morozov Pdf

This book is concerned with the topical problems of mechanics of advanced composite materials whose mechanical properties are controlled by high-strength and high-stiffness continuous fibers embedded in polymeric, metal, or ceramic matrix. Although the idea of combining two or more components to produce materials with controlled properties has been known and used from time immemorial, modern composites were only developed several decades ago and have now found intensive application in different fields of engineering, particularly in aerospace structures for which high strength-to-weight and stiffness-to-weight ratios are required. There already exist numerous publications that cover anisotropic elasticity, mechanics of composite materials, design, analysis, fabrication, and application of composite structures but the difference between this book and the existing ones is that this is of a more specific nature. It covers specific features of material behaviour such as nonlinear elasticity, plasticity, creep, and structural nonlinearity and discusses in detail the problems of material micro- and macro-mechanics that are only slightly touched in existing books, e.g. stress diffusion in a unidirectional material with broken fibers, physical and statistical aspects of fiber strength, coupling effects in anisotropic and laminated materials, etc. The authors are designers of composite structures who were involved in practically all the main Soviet and then Russian projects in composite technology, and the permission of the Russian Composite Center - Central Institute of Special Machinery (CRISM) to use in this book the pictures of structures developed and fabricated in CRISM as part of the joint research and design project is much appreciated. Mechanics and Analysis of Composite Materials consists of eight chapters progressively covering all structural levels of composite materials from their components through elementary plies and layers to laminates.

Author : Christian Lantuejoul
Publisher : Springer Science & Business Media
Page : 262 pages
File Size : 50,9 Mb
Release : 2013-06-29
Category : Mathematics
ISBN : 9783662048085

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Geostatistical Simulation by Christian Lantuejoul Pdf

This book deals with the estimation of natural resources using the Monte Carlo methodology. It includes a set of tools to describe the morphological, statistical and stereological properties of spatial random models. Furthermore, the author presents a wide range of spatial models, including random sets and functions, point processes and object populations applicable to the geosciences. The text is based on a series of courses given in the USA and Latin America to civil, mining and petroleum engineers as well as graduate students in statistics. It is the first book to discuss the geostatistical simulation techniques in such a specific way.