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Author : Jeffrey R. Focht
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)
Download or read book High Strain Rate Properties of IM-7/977-3 Graphite/epoxy Composites written by Jeffrey R. Focht and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : C. T. Sun
Publisher : CRC Press
ISBN 13 : 0849315018
Total Pages : 1685 pages
Book Rating : 4.8/5 (493 download)
Download or read book Proceedings of the American Society for Composites, Seventeenth Technical Conference written by C. T. Sun and published by CRC Press. This book was released on 2002-10-24 with total page 1685 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : G. Yaniv
Publisher :
ISBN 13 :
Total Pages : 378 pages
Book Rating : 4.:/5 (317 download)
Download or read book Temperature Effects on High Strain Rate Properties of Graphite/epoxy Composites written by G. Yaniv and published by . This book was released on 1991 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : IM. Daniel
Publisher :
ISBN 13 :
Total Pages : 15 pages
Book Rating : 4.:/5 (125 download)
Download or read book Environmental Effects on High Strain Rate Properties of Graphite/Epoxy Composite written by IM. Daniel and published by . This book was released on 1989 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: A unidirectional graphite/epoxy material was characterized at strain rates ranging from 5x 10-6 to 5 s-1 under various hygrothermal conditions. New techniques were successfully employed for measuring hygrothermal properties and for strain monitoring of "wet" specimens at high strain rates. A time-temperature-moisture equivalence principle was applied to obtain master curves for the longitudinal, transverse, and in-plane shear moduli and corresponding strengths and ultimate strains of the unidirectional graphite/epoxy. It was found that, except for the longitudinal modulus, which shows a slight increase with strain rate, temperature, and moisture, all other longitudinal properties in general remain unchanged. The transverse modulus increases with strain rate but decreases with increasing temperature and moisture content. All transverse and intralaminar shear properties decrease with increasing temperature and moisture content for a fixed strain rate. Transverse ultimate properties as a function of strain rate show a trend reversal with a local maximum. The in-plane shear strength increases noticeably with strain rate, whereas the ultimate shear strain decreases slightly. The time-temperature-moisture shift function is expressed as a function of two variables, allowing interchangeability of the three parameters, time, temperature, and moisture content.
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781724674265
Total Pages : 378 pages
Book Rating : 4.6/5 (742 download)
Download or read book Temperature Effects on High Strain Rate Properties of Graphite/Epoxy Composites written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-08-04 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: A unidirectional graphite epoxy material (AS4/3501-6) was characterized at strain rates ranging from 5 x 10(exp 6) s(exp -1) to 5(exp -1), at room temperature and at 128 C. Results are presented in the form of stress-strain curves to failure. The longitudinal properties remain nearly unchanged with strain rate and temperature. The transverse modulus increases with strain rate but decreases with temperature. The transverse strength and transverse ultimate tensile strain have a positive rate sensitivity at low rates, which changes to negative at intermediate rates and returns to positive rate sensitivity at the highest rates tested. A temperature-time equivalence principle was applied and master curves were obtained for the transverse mechanical properties. The in-plane shear modulus and in-plane shear strength have a positive rate sensitivity. The ultimate intralaminar shear strain has a positive rate sensitivity at low rates, which changes to negative at high rates. At the elevated temperature of 128 C, the ultimate shear strain is 25 to 30 percent higher than the room temperature value, but its strain rate dependence is moderate. Yaniv, G. and Daniel, I. M. and Cokeing, S. and Martinez, G. M. Unspecified Center NASA-CR-189082, NAS 1.26:189082 IIT-5-54601; NAG3-423; RTOP 505-63-5B...
Author : Konstantinos Peimandis
Publisher :
ISBN 13 :
Total Pages : 298 pages
Book Rating : 4.:/5 (317 download)
Download or read book Environmental and Strain Rate Effects on Graphite/epoxy Composites written by Konstantinos Peimandis and published by . This book was released on 1991 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : IM. Daniel
Publisher :
ISBN 13 :
Total Pages : 21 pages
Book Rating : 4.:/5 (125 download)
Download or read book Strain Rate Characterization of Unidirectional Graphite/Epoxy Composite written by IM. Daniel and published by . This book was released on 1982 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unidirectional graphite/epoxy was characterized at various strain rates ranging from quasi-static to over 500 s-1. Properties were obtained by testing thin rings 10.16 cm (4 in.) in diameter, 2.54 cm (1 in.) wide, and 6 to 8 plies thick under internal pressure. Unidirectional 0, 90, and 10-deg off-axis rings were tested to obtain longitudinal, transverse, and in-plane shear properties. In the dynamic tests internal pressure was applied explosively through a liquid, and the pressure was measured with a calibrated steel ring. Strains in the calibration and specimen rings were recorded with a digital processing oscilloscope. The data were processed and the equation of motion solved numerically by a minicomputer attached to the oscilloscope. Results were obtained and plotted in the form of a dynamic stress-strain curve. Times to failure were as short as 30 ?s. The 0-deg properties which are governed by the fibers do not vary much with strain rate with only a moderate increase in modulus. The 90-deg properties show a marked increase in modulus and strength with strain rate. In-plane shear properties follow a similar trend, although less pronounced than transverse properties. In all cases ultimate strains do not vary much with strain rate.
Author : Donald L. Smith
Publisher :
ISBN 13 :
Total Pages : 56 pages
Book Rating : 4.:/5 (31 download)
Download or read book Properties of Three Graphite/toughened Resin Composites written by Donald L. Smith and published by . This book was released on 1991 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 376 pages
Book Rating : 4.:/5 (319 download)
Download or read book NASA Technical Paper written by and published by . This book was released on 1991 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 468 pages
Book Rating : 4.:/5 (317 download)
Download or read book High Strain Rate Properties of Unidirectional Composites, Part 1 written by and published by . This book was released on 1991 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781722713249
Total Pages : 50 pages
Book Rating : 4.7/5 (132 download)
Download or read book Properties of Three Graphite/Toughened Resin Composites written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-10 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results are presented from an experimental evaluation of IM7/977-2, IM7/F655, and T800/F3900. Data presented include ply-level (unidirectional laminate) strength and moduli, unnotched and notched (open hole) tension and compression properties of quasi-isotropic laminates, and compression-after-impact strengths. These data are compared with properties of other toughened (IM7/8551-7 and IM6/18081) and brittle (T300/5208) graphite-epoxy materials. The IM7/977-2, IM7/F655, and T800/F3900 materials are substantially stronger and more damage tolerant than widely used first generation composite materials such as T300/5208. The T800/F3900 outperforms IM7/977-2 and IM7/F655 materials in tolerance to projectile impacts. Compression-after-impact strengths were found to be dependent on impactor velocity for a given impact energy. The open hole compression properties of all three materials are degraded by the combination of heat and moisture. Smith, Donald L. and Dow, Marvin B. Langley Research Center RTOP 505-63-50-05...
Author : United States. National Aeronautics and Space Administration
Publisher :
ISBN 13 :
Total Pages : 304 pages
Book Rating : 4.3/5 (91 download)
Download or read book NASA Technical Paper written by United States. National Aeronautics and Space Administration and published by . This book was released on 1991 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 278 pages
Book Rating : 4.3/5 (91 download)
Download or read book Recent Advances in Solids and Structures written by and published by . This book was released on 2002 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : American Institute of Aeronautics and Astronautics
Publisher :
ISBN 13 :
Total Pages : 1302 pages
Book Rating : 4.F/5 ( download)
Download or read book AIAA Journal written by American Institute of Aeronautics and Astronautics and published by . This book was released on 2002 with total page 1302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 650 pages
Book Rating : 4.F/5 ( download)
Download or read book Aerospace America written by and published by . This book was released on 1998 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Zvi Hashin
Publisher : Elsevier
ISBN 13 : 1483154424
Total Pages : 512 pages
Book Rating : 4.4/5 (831 download)
Download or read book Mechanics of Composite Materials written by Zvi Hashin and published by Elsevier. This book was released on 2013-10-22 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanics of Composite Materials: Recent Advances covers the proceedings of the International Union of Theoretical and Applied Mechanics (IUTAM) Symposium on Mechanics of Composite Materials. The book reviews papers that emphasize fundamental mechanics, developments, and unresolved problems of the field. The text covers topics such as mechanical properties of composite materials; influence of microstructure on the thermoplastics and transport properties of particulate and short-fiber composites; and further applications of the systematic theory of materials with disordered constitution. The selection also explains the curved thermal crack growth in the interface of a unidirectional carbon-aluminum composite and energy release rates of various microcracks in short-fiber composites. The book will be of great interest to researchers and professionals whose line of work requires the understanding of the mechanics of composite materials.
Author : Marvin B. Dow
Publisher :
ISBN 13 :
Total Pages : 48 pages
Book Rating : 4.:/5 (317 download)
Download or read book Properties of Two Composite Materials Made of Toughened Epoxy Resin and High-strain Graphite Fiber written by Marvin B. Dow and published by . This book was released on 1988 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
