Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 30
Book Description
Adjusting Measured Weight Loss of Aged Graphite Fabric/PMR-15 Composites
Author: Adjusting Measured Weight Loss of Aged Graphite Fabric/Pmr-15 Composites
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781722047368
Category :
Languages : en
Pages : 26
Book Description
The purposes of this study were to evaluate the growth of the surface damage layer in polymer matrix composites (PMC's) fabricated with graphite fabric reinforcement and to determine the effects of the cut-surface degradation on the overall thermo-oxidative (TOS) stability of these materials. Four important conclusions were made about the TOS behavior of T650-35/PNIR- 15 fabric-reinforced composites: (1) Three stages of composite weight loss were seen on the plot of weight loss versus aging time; (2) the depth of the cut-edge damage is related to the composite thickness; (3) the actual weight loss realized by a mechanical test specimen that has had all the aging-induced cut-edge damage removed during the preparation process is significantly less than the weight loss measured using specimens with a high percentage of cut edges exposed to the damaging environment; and (4) an extrapolation of a section of the weight loss curve can be used to obtain a more correct estimate of the actual weight loss after extended periods of aging at elevated temperatures. Bowles, Kenneth J. Glenn Research Center RTOP 538-06-15...
Failure of Polymer Products Due to Thermo-oxidation
Author: D. C. WrightPublisher: iSmithers Rapra Publishing
ISBN: 9781859572719
Category : Science
Languages : en
Pages : 142
Book Description
The combined effects of oxidising media and heat result in degradation by thermo-oxidation. The principles and cases described in this review emphasise long term degradation in service. Two additional phenomena that influence thermo-oxidation are also described: catalysis by certain metal ions, and the influence of stress. An additional indexed section containing several hundred abstracts from the Polymer Library gives useful references for further reading.
Journal of Advanced Materials
Author: Thermal and Mechanical Durability of Graphite-Fiber-Reinforced PMR-15 Composites
Author: Maro Polymer Notes
Author: Monthly Catalog of United States Government Publications
Author: Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1154
Book Description
International Aerospace Abstracts
Author: Progress in Durability Analysis of Composite Systems
Author: K.L. ReifsniderPublisher: CRC Press
ISBN: 9789054109600
Category : Technology & Engineering
Languages : en
Pages : 380
Book Description
Composite material systems are the basis for much of the natural world around us and are rapidly becoming the basis for many modern engineering components. A controlling feature for the general use of such systems is their damage tolerance, durability and reliability. The present book is a comprehensive cross section of the state of the art in the field of the durability of polymer-based, composite, and adhesive systems. As such, it is of special value to researchers concerned with the frontier of the field, to students concerned with the substance of the subject, and to the applied community concerned with the finding methodologies that make it possible to design safe and durable engineering components using material systems.
Polymer Matrix Composites and Technology
Author: Ru-Min WangPublisher: Elsevier
ISBN: 0857092227
Category : Technology & Engineering
Languages : en
Pages : 570
Book Description
Given such properties as low density and high strength, polymer matrix composites have become a widely used material in the aerospace and other industries. Polymer matrix composites and technology provides a helpful overview of these materials, their processing and performance.After an introductory chapter, part one reviews the main reinforcement and matrix materials used as well as the nature of the interface between them. Part two discusses forming and molding technologies for polymer matrix composites. The final part of the book covers key aspects of performance, including tensile, compression, shear and bending properties as well as impact, fatigue and creep behaviour.Polymer matrix composites and technology provides both students and those in industry with a valuable introduction to and overview of this important class of materials. - Provides a helpful overview of these materials, their processing and performance incorporating naming and classification of composite materials - Reviews the main reinforcement and matrix materials used as well as the nature of the interface between them including damage mechanisms - Discusses forming and molding technologies for polymer matrix composites outlining various techniques and technologies