Impact characterisation of low fibre-volume glass reinforced polyester circular laminated plates

Sutherland, L.S.; Soares, C. Guedes

doi:10.1016/j.ijimpeng.2003.11.006

Cited by 71 publications

(47 citation statements)

References 22 publications

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“…Clearly, deflection-restricted structures are not uncommon, and these include composite panels or plates with stiffeners for aerospace and underwater structures [29] and thick laminates, e.g. glass fibre composites for marine applications [30].…”

Section: Influence Of Shear On Impact Performancementioning

confidence: 99%

Viscoelastically prestressed polymeric matrix composites – Effects of test span and fibre volume fraction on Charpy impact characteristics

Fazal

Fancey

2013

Composites Part B: Engineering

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a b s t r a c tA viscoelastically prestressed polymeric matrix composite (VPPMC) is produced by subjecting polymeric fibres to tensile creep, the applied load being removed before moulding the fibres into a resin matrix. After matrix curing, the viscoelastically strained fibres impart compressive stresses to the surrounding matrix, thereby improving mechanical properties. This study investigated the mechanisms considered responsible for VPPMCs improving impact toughness by performing Charpy impact tests on unidirectional nylon 6,6 fibre-polyester resin samples over a range of span settings (24-60 mm) and fibre volume fractions (3.3-16.6%). Comparing VPPMC samples with control (unstressed) counterparts, the main findings were: (i) improved impact energy absorption (up to 40%) depends principally on shear stressinduced fibre-matrix debonding (delamination) and (ii) energy absorption improves slightly with increasing fibre volume fraction, but the relationship is statistically weak. The findings are discussed in relation to improving the impact performance of practical structures.

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Section: Influence Of Shear On Impact Performancementioning

confidence: 99%

Viscoelastically prestressed polymeric matrix composites – Effects of test span and fibre volume fraction on Charpy impact characteristics

Fazal

Fancey

2013

Composites Part B: Engineering

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“…There is trend amongst all the analyses that shows an increase in the asymmetry of the contact force-time plots with increase in impact energy, which indicates an increase in damage [21]. The number of cohesive elements used and the transverse degradation of the woven plies using the TIP damage model have a particularly prominent effect on the analyses.…”

Section: Cyclic Testingmentioning

confidence: 92%

“…Poisson's effect from the orthogonal direction, v 21 , for example, is affected by the damage in the 22 direction and not from cracks in the 11 direction. The symmetry of the compliance tensor applies to both the damaged and undamaged material however, thus the following relationship applies, where the superscript 'd' refers to the damaged variable: (1 d )…”

Section: Matrix and Fibre Damage Propagationmentioning

confidence: 99%

“…Impact kinetic energy, delamination area and depth of surface indent have previously been used as measures of damage of composites under impact. Work by Sutherland and Guedes Soares [21] however, highlights how the size and shape of the contact force provides a better reflection of the level of damage incurred by the composite. Sutherland et al produced some interesting work on the impact response of small circular plates for a range of diameter to thickness ratios.…”

Section: Introductionmentioning

confidence: 99%

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Modelling impact damage in marine composite panels

Johnson

Louca

Mouring

et al. 2009

International Journal of Impact Engineering

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“…Vaidya et al [13] studied composite sandwich structures composed of aluminum foam core and found it optimal for resisting low-velocity impacts. Similarly several novel sandwiches have been developed with a view to enhance the impact toughness [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Application of Modal Analysis for Evaluation of the Impact Resistance of Aerospace Sandwich Materials

Shahdin

Morlier

Michon

et al. 2011

Advanced Aerospace Applications, Volume 1

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Impact resistance of different types of composite sandwich beams is evaluated by studying vibration response changes (natural frequency and damping ratio). This experimental works will help aerospace structural engineer in assess structural integrity using classification of impact resistance of various composite sandwich beams (entangled carbon and glass fibers, honeycomb and foam cores). Low velocity impacts are done below the BVID limit in order to detect damage by vibration testing that is hardly visible on the surface. Experimental tests are done using both burst random and sine dwell testing in order to have a better confidence level on the extracted modal parameters. Results show that the entangled sandwich beams have a better resistance against impact as compared to classical core materials.

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Impact characterisation of low fibre-volume glass reinforced polyester circular laminated plates

Cited by 71 publications

References 22 publications

Viscoelastically prestressed polymeric matrix composites – Effects of test span and fibre volume fraction on Charpy impact characteristics

Viscoelastically prestressed polymeric matrix composites – Effects of test span and fibre volume fraction on Charpy impact characteristics

Modelling impact damage in marine composite panels

Application of Modal Analysis for Evaluation of the Impact Resistance of Aerospace Sandwich Materials

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