Properties of Two Carbon Composite Materials Using LTM25 Epoxy Resin PDF Download

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ISBN:
Category :
Languages : en
Pages : 30

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Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722713591
Category :
Languages : en
Pages : 28

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In this report, the properties of two carbon-epoxy prepreg materials are presented. The epoxy resin used in these two materials can yield lower manufacturing costs due to its low initial cure temperature, and the capability of being cured using vacuum pressure only. The two materials selected for this study are MR50/LTM25, and CFS003/LTM25 with Amoco T300 fiber; both prepregs are manufactured by The Advanced Composites Group. MR50/LTM25 is a unidirectional prepreg tape using Mitsubishi MR50 carbon fiber impregnated with LTM25 epoxy resin. CRS003/LTM25 is a 2 by 2 twill fabric using Amoco T300 fiber and impregnated with LTM25 epoxy resin. Among the properties presented in this report are strength, stiffness, bolt bearing, and damage tolerance. Many of these properties were obtained at three environmental conditions: cold temperature/dry (CTD), room temperature/dry (RTD), and elevated temperature/wet (ETW). A few properties were obtained at room temperature/wet (RTW), and elevated temperature/dry (ETD). The cold and elevated temperatures used for testing were -125 F and 180 F, respectively. In addition, several properties related to processing are presented. Cruz, Juan R. and Shah, C. H. and Postyn, A. S. Langley Research Center RTOP 529-11-11-01...

Author: Alexey Kondyurin
Publisher: Newnes
ISBN: 0080999182
Category : Technology & Engineering
Languages : en
Pages : 268

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Ion Beam Treatment of Polymers, Second Edition presents the results of polymer investigations and technique development in the field of polymer modification by high-energy ion beams. It shows how to use ion beam equipment in the polymer industry, as well as how to use it to produce new polymer materials. The authors, scientists and researchers active in the field, provide analysis and data from their work, and give an overview of related work by others. The authors focus on wetting, adhesion, hardness, chemical activity, environmental stability, biocompatibility, new synthesis methods, and space flight construction. The technologies of material modification by a beam of high energy ions have wide applications in different fields, from microelectronics to medicine. Historically, ion beam treatment of polymers had fewer applications due to high costs of ion beam equipment and low costs of polymer materials. The modern development of new pulse sources with a high current density and wide ion beams increase the effectiveness of ion beam technology for polymers. - Collates data from many scientists working in polymer chemistry, physics of ion beam implantation, and in development and production of ion beam equipment - Covers industrial and scientific applications of ion beam implanted polymers - Integrates physical and chemical aspects of the processes in polymers treated by ion beams

Author: Ever J. Barbero
Publisher: CRC Press
ISBN: 1466516909
Category : Mathematics
Languages : en
Pages : 366

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Designing structures using composite materials poses unique challenges, especially due to the need for concurrent design of both material and structure. Students are faced with two options: textbooks that teach the theory of advanced mechanics of composites, but lack computational examples of advanced analysis, and books on finite element analysis

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Category : Aeronautics
Languages : en
Pages : 180

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Author: Ever J. Barbero
Publisher: CRC Press
ISBN: 1000871916
Category : Science
Languages : en
Pages : 572

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Developed from the author’s course on advanced mechanics of composite materials, Finite Element Analysis of Composite Materials with Abaqus® shows how powerful finite element tools tackle practical problems in the structural analysis of composites. This Second Edition includes two new chapters on "Fatigue" and "Abaqus Programmable Features" as well as a major update of chapter 10 "Delaminations" and significant updates throughout the remaining chapters. Furthermore, it updates all examples, sample code, and problems to Abaqus 2020. Unlike other texts, this one takes theory to a hands-on level by actually solving problems. It explains the concepts involved in the detailed analysis of composites, the mechanics needed to translate those concepts into a mathematical representation of the physical reality, and the solution of the resulting boundary value problems using Abaqus. The reader can follow a process to recreate every example using Abaqus graphical user interface (CAE) by following step-by-step directions in the form of pseudo-code or watching the solutions on YouTube. The first seven chapters provide material ideal for a one-semester course. Along with offering an introduction to finite element analysis for readers without prior knowledge of the finite element method, these chapters cover the elasticity and strength of laminates, buckling analysis, free edge stresses, computational micromechanics, and viscoelastic models for composites. Emphasizing hereditary phenomena, the book goes on to discuss continuum and discrete damage mechanics as well as delaminations and fatigue. The text also shows readers how to extend the capabilities of Abaqus via "user subroutines" and Python scripting. Aimed at advanced students and professional engineers, this textbook features 62 fully developed examples interspersed with the theory, 82 end-of-chapter exercises, and 50+ separate pieces of Abaqus pseudo-code that illustrate the solution of example problems. The author’s website offers the relevant Abaqus and MATLAB model files available for download, enabling readers to easily reproduce the examples and complete the exercises: https://barbero.cadec-online.com/feacm-abaqus/index.html. Video recording of solutions to examples are available on YouTube with multilingual captions.

Author: Prasanth Raghavan
Publisher: Elsevier
ISBN: 0323994539
Category : Technology & Engineering
Languages : en
Pages : 686

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Handbook of Thermosetting Foams, Aerogels, and Hydrogels: From Fundamentals to Advanced Applications presents the latest on the preparation, characterization, properties and applications of thermoset foams, aerogels and hydrogels. The book begins by introducing each of these concepts and their characteristics, current applications, potential for further development, and environmental impacts. This is followed by three sections, each focusing on foams, aerogels and hydrogels developed from a specific thermosetting polymer category, covering polyurethane, epoxy resins and formaldehyde. In each section, detailed coverage includes preparation, structure, characterization, properties, processing and applications based on material, along with key challenges in design, processing, implementation and solutions.This is a valuable resource for researchers and advanced students with an interest in thermoset lightweight materials across the disciplines of polymer science, chemistry, nanotechnology, materials science and engineering. The book will also be of interest to R&D professionals, engineers and scientists working with foams, hydrogels and aerogels for a range of applications and industries. - Provides methodical coverage of polyurethane, epoxy, and formaldehyde-based foams, aerogels, and hydrogels - Explores a range of high-value applications across automotive and aerospace, defense, biomedicine, and other areas - Considers challenges in design, processing, and implementation, and environmental aspects such as biodegradability and recyclability

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ISBN:
Category :
Languages : en
Pages : 58

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Author: Ever J. Barbero
Publisher: CRC Press
ISBN: 1466516631
Category : Mathematics
Languages : en
Pages : 445

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Developed from the author's graduate-level course on advanced mechanics of composite materials, Finite Element Analysis of Composite Materials with Abaqus shows how powerful finite element tools address practical problems in the structural analysis of composites. Unlike other texts, this one takes the theory to a hands-on level by actually solving

Author:
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ISBN:
Category : Government publications
Languages : en
Pages : 940

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