Download or read book Study of Environmental Effects on Thermomechanical Behavior of Resin Base Composites written by T. S. Cook and published by . This book was released on 1977 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: A combined analytical and experimental study was designed to characterize moisture obsorption in graphite/epoxy composite materials. Tests were designed to investigate the influence on moisture absorption of a number of composite parameters including thickness, fiber volume, and lay-up configuration. The environmental parameters investigated were the effects of temperature and humidity; the effect of small applied strains was also evaluated by use of four point bend specimens. The results were analyzed by comparing the weight gain characteristics of the various panels, and by evaluating the coefficients of diffusion for the specimens. Based on these diffusivities, one and three dimensional solutions to Fick's equation were evaluated. A micromechanical model for laminates were developed and analyzed; the experimental data showed the model to be a lower bound solution. Moreover, the results indicate the classical solution to the one dimensional Fick's law based on effective diffusivity can be used to predict weight gain of a graphite/epoxy panel due to the presence of water. This model cannot currently predict secondary diffusion effects. The results of the bending tests showed no effect of small applied strains on the weight gain of the bend specimens. (Author).

Download or read book High Temperature and Environmental Effects on Polymeric Composites written by Thomas S. Gates and published by ASTM International. This book was released on 1997 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Effects on Polymer Matrix Composites written by C. Lee and published by . This book was released on 1997 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: A variety of environmental factors can influence the performance of advanced polymers and composites. In particular, exposure to a combination of moisture and elevated temperature can significantly alter properties. The extent of chemical and physical changes is a function of exposure time and the temperature and humidity of the environment. This work discusses the effects of chemical and physical aging of AFR700B, a high-temperature addition polyimide resin. Neat resin samples were isothermally aged for 500 and 1000 hours at 250 deg C in dry air, humid air, and dry nitrogen. Changes in the dynamic mechanical properties and weight of the resin samples after these different exposures are discussed. An accelerated aging process was developed to facilitate the study of hydrolytic degradation. The effect of degradation on the Tg, weight, and mechanical behavior is discussed. The use of a silicon-nitride moisture barrier proved ineffective.

Download or read book Experimental Mechanics of Composite Hybrid and Multifunctional Materials Volume 6 written by G P Tandon and published by Springer Science & Business Media. This book was released on 2013-08-28 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental Mechanics of Composite, Hybrid, and Multifunctional Materials: Proceedings of the 2013 Annual Conference on Experimental and Applied Mechanics, the sixth volume of eight from the Conference, brings together contributions to this important area of research and engineering. The collection presents early findings and case studies on a wide range of areas, including: Characterization of Energy Storage Materials Microvascular & Natural Composites Nanocomposites for Multifunctional Performance Composite/Hybrid Characterization Using Digital Image Correlation Failure Behavior of Polymer Matrix Composites Non-Destructive Testing of Composites Composite Test Methods Joints/Bonded Composites

Download or read book NASA Technical Memorandum written by and published by . This book was released on 1994 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Effects on Composite Materials written by George S. Springer and published by . This book was released on 1981 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analytical Study of Effects of Surface and Environmental Thermal Properties on Moisture in Composites written by Stephen Stern Tompkins and published by . This book was released on 1977 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Effects on Composite Materials Volume II written by George S. Springer and published by CRC Press. This book was released on 1981 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Marine Composites written by Richard Pemberton and published by Woodhead Publishing. This book was released on 2018-08-20 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine Composites: Design and Performance presents up-to-date information and recent research findings on the application and use of advanced fibre-reinforced composites in the marine environment. Following the success of their previously published title: Marine Applications of Advanced Fibre-reinforced Composites which was published in 2015; this exemplary new book provides comprehensive information on materials selection, characterization, and performance. There are also dedicated sections on sandwich structures, manufacture, advanced concepts, naval architecture and design considerations, and various applications. The book will be an essential reference resource for designers, materials engineers, manufactures, marine scientists, mechanical engineers, civil engineers, coastal engineers, boat manufacturers, offshore platform and marine renewable design engineers. - Presents a unique, high-level reference on composite materials and their application and use in marine structures - Provides comprehensive coverage on all aspects of marine composites, including the latest advances in damage modelling and assessment of performance - Contains contributions from leading experts in the field, from both industry and academia - Covers a broad range of naval, offshore and marine structures

Download or read book Epoxy Based Biocomposites written by Chandrasekar Muthukumar and published by CRC Press. This book was released on 2023-09-29 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: Epoxy-Based Biocomposites highlights the influence of fibre type, nanofillers, and ageing conditions on the performance of epoxy-based biocomposites subjected to various loading conditions. This book serves as a useful reference for researchers, graduate students, and engineers in the field of polymer composites. In addition to investigating the behaviour of hybrid biocomposites and biocomposites reinforced with various nanofillers, this book discusses the response of epoxy-based biocomposites exposed to moisture absorption, accelerated weathering, and hygrothermal ageing. This book also considers the static and dynamic properties, such as creep, fatigue, and free vibration properties.

Download or read book Advanced Composite Materials environmental Effects written by Jack R. Vinson and published by . This book was released on 1978 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High Temperature and Environmental Effects on Polymeric Composites written by Charles E. Harris and published by ASTM International. This book was released on 1993 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aerospace and naval applications of polymers in conditions once thought too harsh for them, take center stage in the survey of how polymer composites react to environmental conditions. A dozen papers from a symposium in San Diego, October 1991, describe damage mechanisms and failure, materials behavior under combined effects, and constitutive models, sometimes considering polymers as a whole, but more often specific groups or composites. No index. Annotation copyright by Book News, Inc., Portland, OR.

Download or read book environmental effects on advanced composite materials written by Christian JL. and published by ASTM International. This book was released on 1976 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy Research Abstracts written by and published by . This book was released on 1978 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 1044 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ICCS20 20th International Conference on Composite Structures written by Nicholas Fantuzzi and published by Società Editrice Esculapio. This book was released on 2017-07-24 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.