The compression strength of unidirectional carbon fibre reinforced plastic

Hancox, N.L.

doi:10.1007/bf00540347

Cited by 131 publications

(39 citation statements)

References 7 publications

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“…This type of plot with Ome u '~ 1.5 arntu can be made to fit the results of Martinez et aL [7] quite well. The more gradual effects observed by Hancox [12] with carbon-epoxies cannot easily be explained by this combination of failure processes, however.…”

Section: Adhesion and Volume Fractionmentioning

confidence: 73%

A theoretical framework for the compressive properties of aligned fibre composites

Piggott

1981

J Mater Sci

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New experimental results have made necessary the reformulation of the theory for compressive strength. The new theory is based on the precept that a number of different mechanisms can cause composite ifailure. The active one in a particular situation is that which gives the lowest failure stress. Thus composite strength can be dominated by fibre strength when the fibres are ductile, or controlled by matrix yielding when the matrix is soft. Lack of linearity in the fibres has a very important effect also, as does the adhesion between the matrix and the fibres. Modulus is affected as well as strength. Governing equations are developed for six different mechanisms and the agreement with experiment is very good. It is concluded that to make composites with good compressive properties the fibres should be hard, as straight as possible and well bonded to the matrix. The matrix should have a high yield stress, tensile strength and compressive strength. Hybridization is useful tO improve the compressive strength of Kevlar composites, but should be avoided with brittle fibre systems due to unfavourable "hybrid effects".

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Section: Adhesion and Volume Fractionmentioning

confidence: 73%

A theoretical framework for the compressive properties of aligned fibre composites

Piggott

1981

J Mater Sci

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“…In polymer composites, the identification of critical failure modes is not easily accomplished because fracture of composites is usually instantaneous and catastrophic. Several types of possible failure modes, such as Euler buckling or macrobuckling of the specimen, crushing of the specimen end and longitudinal splitting, interfacial failure, elastic microbuckling of fibres, plastic microbuckling of fibres in a kinking mode and shear failure of the specimen, have been observed and reported in previous studies [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. Among all failure modes, the fibre microbuckling failure mode is recognized as the dominant compressive failure mechanism in currently used continuous fibre/polymer matrix composite systems.…”

Section: Introductionmentioning

confidence: 99%

Fracture mechanisms and failure analysis of carbon fibre/toughened epoxy composites subjected to compressive loading

Jumahat

Soutis

Jones

et al. 2010

Composite Structures

190

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“…Different uses incorporate transportation, compound gear and apparatus development, electrical and hardware gear, angling poles and capacity tanks. The compression strength of unidirectional carbon fibre reinforced plastic and Compressive power and failure of fibre reinforced unidirectional composites be presented by Hancox NL 1975 and Lee SH, Was AM 1999. A composite is an unpredictable durable material, made by consolidating two or more different elements in a manner that the following part is supplied with some predominant and enhanced properties.…”

Section: Introductionmentioning

confidence: 99%