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Titolo:
NEGATIVE POISSONS RATIOS IN ANGLE-PLY LAMINATES - THEORY AND EXPERIMENT
Autore:
CLARKE JF; DUCKETT RA; HINE PJ; HUTCHINSON IJ; WARD IM;
Indirizzi:
UNIV LEEDS,IRC POLYMER SCI & TECHNOL LEEDS LS2 9JT W YORKSHIRE ENGLAND UNIV LEEDS,IRC POLYMER SCI & TECHNOL LEEDS LS2 9JT W YORKSHIRE ENGLAND UNIV ILLINOIS URBANA IL 61801 ICI CHEM & POLYMERS LTD,RES & TECHNOL GRP CHESHIRE ENGLAND
Titolo Testata:
Composites
fascicolo: 9, volume: 25, anno: 1994,
pagine: 863 - 868
SICI:
0010-4361(1994)25:9<863:NPRIAL>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
FIBER-REINFORCED COMPOSITES; MICROPOROUS POLYETHYLENE; ELASTIC PROPERTIES;
Keywords:
ANGLE-PLY LAMINATES; STIFFNESS CONSTANTS; POISSONS RATIOS; ULTRASONIC VELOCITY TECHNIQUE; LAMINATE THEORY; CARBON EPOXY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
20
Recensione:
Indirizzi per estratti:
Citazione:
J.F. Clarke et al., "NEGATIVE POISSONS RATIOS IN ANGLE-PLY LAMINATES - THEORY AND EXPERIMENT", Composites, 25(9), 1994, pp. 863-868

Abstract

A series of composite panels has been prepared by laminating unidirectional prepreg tapes of epoxy resin reinforced with continuous carbon fibres. Each panel was a balanced, symmetrical laminate with the pliesalternating at +/- theta to a reference direction where theta = 0, 10, 15, 20, 25, 30 and 40-degrees. The full set of nine elastic constants was determined for each panel using ultrasonic velocity measurements. The experimentally determined elastic constants were then compared with theoretical predictions obtained using standard laminate theory. The Poisson's ratios of the composites were of particular interest in showing negative values for theta in the range between 15 and 30-degrees, as predicted by the theory.

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Documento generato il 26/09/20 alle ore 04:59:42