Transverse compressive behaviour of unidirectional carbon fibre reinforced plastics

Collings, T.A.

doi:10.1016/0010-4361(74)90548-5

Cited by 55 publications

(29 citation statements)

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“…The overall lack of density dependence is not surprising, considering that the transverse compressive strength of fibre-reinforced composites is thought to be independent of fibre volume fraction [29]. However, deformation stage results (figures 12 and 13) suggest transverse compressive failure occurs by crushing of the vessels in the vascular bundles.…”

Section: Transverse Compressive Strengthmentioning

confidence: 97%

The structure and mechanics of Moso bamboo material

Dixon

Gibson

2014

J. R. Soc. Interface.

301

152

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Although bamboo has been used structurally for millennia, there is currently increasing interest in the development of renewable and sustainable structural bamboo products (SBPs). These SBPs are analogous to wood products such as plywood, oriented strand board and glue-laminated wood. In this study, the properties of natural Moso bamboo (Phyllostachys pubescens) are investigated to further enable the processing and design of SBPs. The radial and longitudinal density gradients in bamboo give rise to variations in the mechanical properties. Here, we measure the flexural properties of Moso bamboo in the axial direction, along with the compressive strengths in the axial and transverse directions. Based on the microstructural variations (observed with scanning electron microscopy) and extrapolated solid cell wall properties of bamboo, we develop models, which describe the experimental results well. Compared to common North American construction woods loaded along the axial direction, Moso bamboo is approximately as stiff and substantially stronger, in both flexure and compression but denser. This work contributes to critical knowledge surrounding the microstructure and mechanical properties of bamboo, which are vital to the engineering and design of sustainable SBPs.

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Section: Transverse Compressive Strengthmentioning

confidence: 97%

The structure and mechanics of Moso bamboo material

Dixon

Gibson

2014

J. R. Soc. Interface.

301

152

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“…In unidirectional composites such failure usually occurs without cutting the fibers and this matrix dominated shear strength is typically very low [29,30]. Collin [31] performed compression tests using cube-shaped thick unidirectional-composite specimens by loading in one of the transverse directions, but providing constraint in the axial fiber direction. As the specimen is allowed to expand in the unconstrained transverse direction, matrix dominated failure has been found to occur in the transverse direction.…”

Section: Crush Compressive and Punch-shear Fiber Strengthsmentioning

confidence: 99%

“…The laterally constrained compression test procedure originally used by Collin [31] was extended to characterize the shear failure strength of fibers in both unidirectional and plain weave laminates. Fig.…”

Section: Crush Compressive and Punch-shear Fiber Strengthsmentioning

confidence: 99%

A ballistic material model for continuous-fiber reinforced composites

Yen

2012

International Journal of Impact Engineering

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a b s t r a c tA ply-level material constitutive model for plain-weave composite laminates has been developed to enable computational analyses of progressive damage/failure in the laminates under high velocity ballistic impact conditions. In this model, failure-initiation criteria and damage evolution laws are introduced to account for the major fiber-failure modes (tensile, compressive, punch shear and crush loading). In addition, two matrices related failure modes (in-plane shear and through the thickness delamination) are also accounted for. These types of fiber and matrix failure modes are commonly observed during a ballistic event. The composite-material model has been implemented within LS-DYNA as a user-defined material subroutine and used successfully to predict the damage and ballistic behavior of composite laminates subjected to various ballistic impact conditions. It is hoped that the availability of this material model will help facilitate the development of composite structures with enhanced ballistic survivability.Published by Elsevier Ltd.

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“…Tests of the type shown in Figure 17 were performed on unidirectional CFRP in [40], where a transition was shown from a failure plane parallel to the fibres in unconstrained specimens to a failure plane cutting through the fibres (as indicated in the figure) in the constrained specimen. This resulted in an almost tenfold increase in compressive strength.…”

Section: Constrained Out-of-plane Compressionmentioning

confidence: 99%

A survey of test methods for multiaxial and out-of-plane strength of composite laminates

Olsson¹

2011

Composites Science and Technology

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To cite this version:Robin Olsson. A survey of test methods for multiaxial and out-of-plane strength of composite laminates.Composites Science and Technology, Elsevier, 2011, 71 (6) This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. and other textile systems. Tubular and cruciform specimens can provide arbitrary inplane loading, while off-axis and angle-ply specimens provide specific biaxial loadings.Tensile and compressive out-of-plane strength may be determined by axial loading of specimens with a waisted gauge section, while bending of curved specimens allow determination of the out-of-plane tensile strength. Tests suited for out-of-plane shear strength include the short beam shear test, the inclined double notch test and the inclined waisted specimen. Testing of arbitrary tri-axial stress states using tubular or cruciform specimens with superimposed through-the-thickness loading is highly complex and significant problems have been reported in achieving the intended stress states and failure modes. Specific tri-axial stress states can be obtained by uniaxial loading of specimens with constrained expansion, as in the die channel test.

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Transverse compressive behaviour of unidirectional carbon fibre reinforced plastics

Cited by 55 publications

References 1 publication

The structure and mechanics of Moso bamboo material

The structure and mechanics of Moso bamboo material

A ballistic material model for continuous-fiber reinforced composites

A survey of test methods for multiaxial and out-of-plane strength of composite laminates

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