Local Mechanics Concepts for Composite Material Systems PDF Download
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Author: J.N. Reddy
Publisher: Springer Science & Business Media
ISBN: 3642847927
Category : Technology & Engineering
Languages : en
Pages : 412
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Book Description
The application of composite materials to engineering components has spurred a ma jor effort to analyze such materials and the structures made from them. Most researchers workin~ in mechanics of composite structures understand that composite materials pro vide umque advantages but also present complex and challenging problems to researchers. The complex inelastic behavior and variety of failure modes of composite structures are a result of the strength and stiffness properties of constituents and their complex interac tions. Macromechanical constitutive models based on gross composite properties cannot realistically represent local interactions, and thus have serious limitations. The composite materials that are of most interest to engineering applications are often "brittle" in their behavior, in the sense that the strength and life of the material systems is controlled or greatly influenced by events or processes which involve volumes of material whose dimen sions are small compared to the global dimensions of the element. This is also true in ductile systems where local nonlinearity may contribute to local behavior which controls global response.
Author: J.N. Reddy
Publisher: Springer Science & Business Media
ISBN: 3642847927
Category : Technology & Engineering
Languages : en
Pages : 412
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Book Description
The application of composite materials to engineering components has spurred a ma jor effort to analyze such materials and the structures made from them. Most researchers workin~ in mechanics of composite structures understand that composite materials pro vide umque advantages but also present complex and challenging problems to researchers. The complex inelastic behavior and variety of failure modes of composite structures are a result of the strength and stiffness properties of constituents and their complex interac tions. Macromechanical constitutive models based on gross composite properties cannot realistically represent local interactions, and thus have serious limitations. The composite materials that are of most interest to engineering applications are often "brittle" in their behavior, in the sense that the strength and life of the material systems is controlled or greatly influenced by events or processes which involve volumes of material whose dimen sions are small compared to the global dimensions of the element. This is also true in ductile systems where local nonlinearity may contribute to local behavior which controls global response.
Author: George Z Voyiadjis
Publisher: Springer Science & Business Media
ISBN: 3540277102
Category : Technology & Engineering
Languages : en
Pages : 338
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Book Description
This is a book for people who love mechanics of composite materials and ? MATLAB . We will use the popular computer package MATLAB as a matrix calculator for doing the numerical calculations needed in mechanics of c- posite materials. In particular, the steps of the mechanical calculations will be emphasized in this book. The reader will not ?nd ready-made MATLAB programs for use as black boxes. Instead step-by-step solutions of composite material mechanics problems are examined in detail using MATLAB. All the problems in the book assume linear elastic behavior in structural mechanics. The emphasis is not on mass computations or programming, but rather on learning the composite material mechanics computations and understanding of the underlying concepts. The basic aspects of the mechanics of ?ber-reinforced composite materials are covered in this book. This includes lamina analysis in both the local and global coordinate systems, laminate analysis, and failure theories of a lamina.
Author: Neil McCartney
Publisher: John Wiley & Sons
ISBN: 1118485289
Category : Technology & Engineering
Languages : en
Pages : 596
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Book Description
PROPERTIES FOR DESIGN OF COMPOSITE STRUCTURES A comprehensive guide to analytical methods and source code to predict the behavior of undamaged and damaged composite materials In Properties for Design of Composite Structures: Theory and Implementation Using Software, distinguished researcher Dr. Neil McCartney delivers a unique and insightful approach to the development of predictive methods for the properties of undamaged and damaged laminated composite materials. The book focuses on presenting compact analytical formulae for several important effective properties—including mechanical, thermal, and electrical—that can be applied to a variety of reinforcement geometries. The author introduces a compact notation that enables an explicit treatment of laminate property determination, including the out-of-plane shear properties required for three-dimensional numerical simulations of structural features using finite and boundary element analyses. There is also a detailed consideration of ply crack closure and a useful study of the interrelationships between the effective thermoelastic constants of damaged laminates. The book also offers: A thorough introduction to the principles and formulae for homogenous materials and applications, including continuum and fracture concepts for homogeneous materials A comprehensive exploration of the properties of undamaged composites, including undamaged composite materials with multiple phases and the properties of a single undamaged lamina Practical discussions of the properties of damaged composites, including matrix cracking in UD composites and damaged laminates Consideration of effects of delamination, fatigue, and environmentally induced damage In-depth examinations of derivations of key results, including the analysis of bridged cracks and stress transfer mechanics for cross-ply and general symmetric laminates Perfect for composite design engineers in all types of material-supplying industries and manufacturing companies, Properties for Design of Composite Structures: Theory and Implementation Using Software will also earn a place in the libraries of undergraduate and graduate students in engineering, aerospace, and materials departments.
Author: C. T. Sun
Publisher: CRC Press
ISBN: 0849315018
Category : Technology & Engineering
Languages : en
Pages : 1685
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Book Description
Author: Ramesh Talreja
Publisher: Elsevier
ISBN: 0443184887
Category : Technology & Engineering
Languages : en
Pages : 620
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Book Description
Modeling Damage, Fatigue and Failure of Composite Materials, Second Edition provides the latest research in the field of composite materials, an area that has attracted a wealth of research, with significant interest in the areas of damage, fatigue, and failure. The book is fully updated, and is a comprehensive source of physics-based models for the analysis of progressive and critical failure phenomena in composite materials. It focuses on materials modeling while also reviewing treatments for analyzing failure in composite structures. Sections review damage development in composite materials such as generic damage and damage accumulation in textile composites and under multiaxial loading. Part Two focuses on the modeling of failure mechanisms in composite materials, with attention given to fiber/matrix cracking and debonding, compression failure, and delamination fracture. Final sections examine the modeling of damage and materials response in composite materials, including micro-level and multi-scale approaches, the failure analysis of composite materials and joints, and the applications of predictive failure models. - Provides a comprehensive source of physics-based models for the analysis of progressive and critical failure phenomena in composite materials - Assesses failure and life prediction in composite materials - Discusses the applications of predictive failure models such as computational approaches to failure analysis - Covers further developments in computational analyses and experimental techniques, along with new applications in aerospace, automotive, and energy (wind turbine blades) fields - Covers delamination and thermoplastic-based composites
Author: Amer Society Composi
Publisher: CRC Press
ISBN: 9781566763769
Category : Technology & Engineering
Languages : en
Pages : 670
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Book Description
Conference proceedings from the American Society of Composites, Tenth Technology Proceedings: Composite Materials, Mechanics and Processing on October 18-20, 1995 at the Miramar Sheraton Hotel Santa Monica, California
Author: L. C. Zhang
Publisher: World Scientific
ISBN: 9789812777973
Category : Technology & Engineering
Languages : en
Pages : 738
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Book Description
This book contains the proceedings of the Third Australasian Congress on Applied Mechanics (ACAM2002). The Congress was held to provide an international forum for researchers, industry practitioners, engineers and postgraduate scholars to exchange and disseminate knowledge and experience of the most recent advances with a focus on the behaviour of solids. Topics include: biomechanics; constitutive modelling; damage; fracture; fatigue; dynamics; impact; vibration; geo-mechanics; tribology; machining and more.
Author: Amer Society Composi
Publisher: CRC Press
ISBN: 9781566767910
Category : Technology & Engineering
Languages : en
Pages : 1030
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Book Description
Conference proceedings of the Fourteenth American Society for Composites held on the September 27-29 1999 at the Holiday Inn-1675 Conference Centre, Fairborn, Ohio.
Author: Gerd Weissenbach
Publisher: Universal-Publishers
ISBN: 1581122454
Category : Business & Economics
Languages : en
Pages : 298
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Book Description
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: Carl T. Herakovich
Publisher: Springer
ISBN: 3319323121
Category : Technology & Engineering
Languages : en
Pages : 246
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Book Description
This book provides a detailed history of the United States National Committee on Theoretical and Applied Mechanics (USNC/TAM) of the US National Academies, the relationship between the USNC/TAM and IUTAM, and a review of the many mechanicians who developed the field over time. It emphasizes the birth and growth of USNC/TAM, the birth and growth of the larger International Union of Theoretical and Applied Mechanics (IUTAM), and explores the work of mechanics from Aristotle to the present. Written by the former Secretary of USNC/TAM, Dr. Carl T. Herakovich of the University of Virginia, the book profiles luminaries of mechanics including Galileo, Newton, Bernoulli, Euler, Cauchy, Prandtl, Einstein, von Kármán, Timoshenko, and in so doing provides insight into centuries of scientific and technologic advance.
