Impact damage analysis of composite plates

Luo, Robert Keqi; Green, E.R.; Morrison, C. J.

doi:10.1016/s0734-743x(98)00056-6

Cited by 66 publications

(29 citation statements)

References 14 publications

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“…Since the failure strength of epoxy matrix (0.13 GPa) is low by comparing it to E-glass fibers (2.5 GPa), the crack propagates along the fibers by ripping the matrix in the layer thickness. The interlaminar shear stresses induced by the total plate bending are at the origin of decoherence between the plies [25,26].…”

Section: Impact Damage Inspectionmentioning

confidence: 99%

The effect of stacking sequence on the impact-induced damage in cross-ply E-glass/epoxy composite plates

Mili

Necib

2008

Arch Appl Mech

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The aim of this study is to determine the damage mechanisms of unidirectional E-glass/epoxy laminated composites under localized impacts. The projectile velocities at low ranges (0.54-3.10 m/s) have been considered to establish a parametric analysis of clamped laminated composite responses. The used circular plates are symmetrical laminates which are composed of ten plies and have three different cross-ply stacking sequences: [0 2 /90 6 /0 2 ], [0 3 /90 4 /0 3 ] and [0 4 /90 2 /0 4 ]. They are subjected at their centers to an impact of an aluminum projectile which is applied in the transverse direction by using a drop weight machine. The time histories of the impactor acceleration, the projectile displacement and the plate deflection were measured. The analysis of the nature of the damage mechanisms and its relation to the structural responses has been performed. The identification of the matrix cracks and the delamination at the interfaces has allowed to determine the initiation and extension criteria of the damage.

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Section: Impact Damage Inspectionmentioning

confidence: 99%

The effect of stacking sequence on the impact-induced damage in cross-ply E-glass/epoxy composite plates

Mili

Necib

2008

Arch Appl Mech

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“…' The potential contact area of the cylinder was taken as a 'slave surface' and hence, the individual nodes of the composite cylinder were constrained not to penetrate the surfaces of the rigid bodies, whereas the contrary was permitted due to the higher stiffness of the latter. The relative motions of the contact surfaces were modeled as 'small sliding,' which assumes that contact surfaces do not move very much relative to each other [9]. The contact algorithm used is based on the penalty method.…”

Section: Improvement Of Damage Tolerancementioning

confidence: 99%

Prediction of Damage in Composite Cylinders After Impact

Gning

Tarfaoui

Collombet

et al. 2005

Journal of Composite Materials

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This paper presents the results from a study in two parts. The first part involves the identification and modeling of damage initiation and development in glass-reinforced epoxy composite cylinders subjected to drop weight impact. The second is concerned with the evaluation of the influence of this damage on the residual strength under hydrostatic pressure loading. Original results showing the influence of damage on implosion pressure are presented. The improved understanding of these phenomena and the development of predictive tools is part of an ongoing effort to improve the long-term integrity of composite structures for underwater applications.

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“…The second approach involves replacing conventional construction materials with fibre reinforced plastics (FRPs), which permits considerable weight savings of up to some 50% [14,15] Materials like carbon fibre reinforced plastics (CFRPs) or glass fibre reinforced plastics (GFRPs) offer excellent specific mechanical properties and permit innovative solutions such as functional integration [16][17][18]. These parameters are required for load bearing or energy absorbing structures in the automotive, aerospace and energy sectors.…”

Section: Approaches To Automotive Lightweight Constructionmentioning

confidence: 99%