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Author: PG. Ifju Publisher: ISBN: Category : Braids Languages : en Pages : 21
Book Description
A series of tests was run to characterize the through-the-thickness tensile strength of a variety of composites that included two-dimensional (2D) braids, 2D and three-dimensional (3D) weaves, and prepreg tapes. A new test method based on a curved beam was evaluated. The through-the-thickness deformations were characterized using moire interferometry. Failures were significantly different between the 2D materials and the 3D weaves. The 2D materials delaminated between layers due to out-of-plane tensile stresses. The strength of the 2D textile composites did not increase relative to the tapes. The 3D weaves failed due to radial cracks that initiated between the surface yarns because of the circumferential stresses along the inner radius. A circumferential crack similar to the 2D materials produced the final failure. Final failure in the 3D weaves occurred at a lower bending moment than in the other materials. The early failures were caused by radial crack formation rather than a low through-the-thickness strength.
Author: PG. Ifju Publisher: ISBN: Category : Braids Languages : en Pages : 21
Book Description
A series of tests was run to characterize the through-the-thickness tensile strength of a variety of composites that included two-dimensional (2D) braids, 2D and three-dimensional (3D) weaves, and prepreg tapes. A new test method based on a curved beam was evaluated. The through-the-thickness deformations were characterized using moire interferometry. Failures were significantly different between the 2D materials and the 3D weaves. The 2D materials delaminated between layers due to out-of-plane tensile stresses. The strength of the 2D textile composites did not increase relative to the tapes. The 3D weaves failed due to radial cracks that initiated between the surface yarns because of the circumferential stresses along the inner radius. A circumferential crack similar to the 2D materials produced the final failure. Final failure in the 3D weaves occurred at a lower bending moment than in the other materials. The early failures were caused by radial crack formation rather than a low through-the-thickness strength.
Author: Ning Hu Publisher: BoD – Books on Demand ISBN: 9535107119 Category : Science Languages : en Pages : 520
Book Description
Composites are a class of material, which receives much attention not only because it is on the cutting edge of active material research fields due to appearance of many new types of composites, e.g., nanocomposites and bio-medical composites, but also because there are a great deal of promises for their potential applications in various industries ranging from aerospace to construction due to their various outstanding properties. This book mainly deals with fabrication and property characterization of various composites by focusing on the following topics: functional and structural nanocomposites, numerical and theoretical modelling of various damages in long fiber reinforced composites and textile composites, design, processing and manufacturing technologies and their effects on mechanical properties of composites, characterization of mechanical and physical properties of various composites, and metal and ceramic matrix composites. This book has been divided into five sections to cover the above contents.
Author: Stepan V Lomov Publisher: Elsevier ISBN: 0857092537 Category : Technology & Engineering Languages : en Pages : 557
Book Description
Non-crimp fabric (NCF) composites are reinforced with mats of straight (non-crimped) fibres, giving them such advantages as strength, ease of handling and low manufacturing costs. Non-crimp fabric composites provides a comprehensive review of the use of NCF composites, their manufacture and applications in engineering.Part one covers the manufacture of non-crimp fabrics, including also topics such as structural stitching and automated defect analysis. Part two goes on to discuss the manufacture of non-crimp fabric composites, with chapters covering such topics as deformability and permeability of NCF. Part three focuses on the properties of NCF composites, with chapters on stiffness and strength, damage progression and fatigue. Finally, part four covers the applications of NCF composites, including chapters on the aerospace and automotive industries as well as wind turbines and helicopter applications. The book concludes with a discussion of cost analysis of NCF composites in engineering applications.With its distinguished editor and international team of expert contributors, Non-crimp fabric composites is an essential reference for composite manufacturers and structural and mechanical engineers in industries using NCF composites, as well as academics with a research interest in the field. - Provides a comprehensive review of the use of NCF composites, their manufacture and applications in engineering - Reviews the manufacture of non-crimp fabrics, including also topics such as structural stitching and automated defect analysis - Examines the properties of NCF composites considering stiffness and strength, damage progression and fatigue
Author: J M Hodgkinson Publisher: Elsevier ISBN: 1855738910 Category : Technology & Engineering Languages : en Pages : 379
Book Description
Testing of composite materials can present complex problems but is essential in order to ensure the reliable, safe and cost-effective performance of any engineering structure. This essentially practical book, complied from the contributions of leading professionals in the field, describes a wide range of test methods which can be applied to various types of advanced fibre composites. The book focuses on high modulus, high strength fibre/plastic composites and also covers highly anisotrpoic materials such as carbon, aramid and glass.Engineers and designers specifying the use of materials in structures will find this book an invaluable guide to best practice throughout the range of industrial sectors where FRCs are employed.
Author: A. Bogdanovich Publisher: Springer Science & Business Media ISBN: 9780412611506 Category : Technology & Engineering Languages : en Pages : 594
Book Description
Mechanics of Textile and Laminated Composites is in three parts. The first part (Chapters 1 and 2) covers the fundamental issues of 3-D theory of elasticity and presents the theory of elasticity of an anisotropic body with comprehensive analysis of its specific cases. The second part (Chapters 3-5) presents the theoretical and experimental characterization of the elastic properties of unidirectional, textile and layered composite materials. The final part (Chapters 6 and 7) addresses the problems of 3-D stress analysis in laminated and textile composite structures. Major emphasis is placed on textile composites, perhaps the most complex and at the same time most promising group of composite materials. One of the most important features of this book is that it provides accurate and efficient 3-D analysis of laminated and textile reinforced structures, using novel methods. It has become more and more evident in recent years that, in many practical design situations, such full-scale 3-D analyses are required. Researchers, designers and engineers working with composite materials and structures will find this book an invaluable addition to their libraries.
Author: PG. Ifju
Author: PG. Ifju
Author: 
Author: Wade C. Jackson
Author: Ravi B. Deo
Author: Mechanics of Textile Composites Conference
Author: Ning Hu
Author: Charles E. Harris
Author: Stepan V Lomov
Author: J M Hodgkinson
Author: A. Bogdanovich