Low-velocity impact behaviour of woven laminate plates with fire retardant resin

Grasso, Marzio; Xu, Yigeng; Ramji, Amit; Zhou, Gang; Chrysanthou, A.; Haritos, George; Chen, Yong Kang

doi:10.1016/j.compositesb.2019.04.023

Cited by 24 publications

(8 citation statements)

References 24 publications

(25 reference statements)

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“…These curves are gathered in Fig.4.10 (top). All of them present the same trends, which are consistent with those reported in the literature on low-velocity impact at CFRP plates [165,169,185]. During the first stage of impact (approximately until 1.5 ms), all the curves collapse forming a toe region that coincides with the beginning of contact.…”

Section: Absorbed Energysupporting

confidence: 88%

“…It can be seen that for impact energies of 30 and 34 J the energy absorbed by the plates in [175] (16 J and 27 J, respectively) is about the same magnitude of the values reported here (14.68 J and 23.22 J). Woven CFRP of similar thickness to the ones employed in [175] were drop-tower tested by Grasso et al [169] at a maximum energy level of 28.80 J. Their reported E abs at this loading condition was 13.12 J, slightly lower than that obtained in the present study but still in the same range.…”

Section: Resultscontrasting

confidence: 50%

“…Instead, woven-fabric (WF) composites present a greater impact resistance as the transverse tensile strength is increased [167]. In fact, recent studies suggest that the predominant damage mechanisms under low-velocity impact differ from woven to non-woven composites [168,169], being matrix cracking more relevant for the first and delamination for the second. materials.…”

Section: Overviewmentioning

confidence: 99%

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Assessment of head injury risk caused by impact using finite element models

Toledano¹

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Impact loading is the primary source of head injuries and can result in a range of trauma from mild to severe. Because of the multiple environments in which impact-related injuries can take place (automotive accidents, sports, accidental falls, violence), they can potentially affect the entire population regardless of their health conditions. Despite the increasing research effort on the understanding of head impact biomechanics, accurate prediction and prevention of traumatic injuries has not been completely achieved.

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Section: Absorbed Energysupporting

confidence: 88%

Section: Resultscontrasting

confidence: 50%

Section: Overviewmentioning

confidence: 99%

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Assessment of head injury risk caused by impact using finite element models

Toledano¹

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“…Laminated composite components have many structural advantages compared with its metallic counterparts. The lack of reinforcement in the thickness direction is however a major concern for laminated composite components as it facilitates delamination under mode I and mode II loading [1]. Laminated structures are also highly susceptible to out-ofplane impact loading during the manufacturing, operation or maintenance of the structure, which may lead to delamination initiation and significant reductions in their structural performance.…”

Section: Introductionmentioning

confidence: 99%

Effect of interfacial fibre orientation and PPS veil density on delamination resistance of 5HS woven CFRP laminates under mode II loading

Ramji

Grasso

et al. 2021

Composites Science and Technology

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This paper presents an experimental study on the effect of interfacial fibre orientation and interleaved thermoplastic veil on Mode II interlaminar fracture toughness of 5-harness satin woven carbon fibre reinforced polymer composite laminates. Three-point End-Notched Flexure tests were carried out to determine delamination resistance, GIIC of specimens with five fibre orientation biases and two veil densities at the midplane. Results show that delamination resistance of 5-harness satin woven laminates depends on the layup configurations at the midplane with 90/45 fibre orientation bias exhibiting the greatest resistance. The delamination resistance enhancement from polyphenylene sulfide (PPS) veil interleaves is also fibre orientation dependent but a further increase of the veil density from 10gm-2 to 20gm-2 offers little extra benefit. Fracture surface morphologies were examined under SEM to understand the failure mechanism and fracture process of the woven laminate under the combined effects of the interfacial fibre orientation and the veil density. Fibre orientation relative to the delamination path, surface texture misfit, and veil density are the three main contributors identified for the variation of delamination resistance of 5HS woven laminates.

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“…CFRP composites with different ply stacking sequences (based on various fibre orientations) have different level of damage mode, when lowvelocity impact. Several works have been recently reported on responses of CFRP composites to low-velocity impact energy [11][12][13]. However, studies on effects of stacking sequences of CFRP composites laminates on impact response are rare and scanty.…”

Section: Introductionmentioning

confidence: 99%

Influence of Ply Stacking Sequences on the Impact Response of Carbon Fibre Reinforced Polymer Composite Laminates

et al. 2019

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In recent years, there has been a growing demand for high strength-to-weight ratio and lightweight structures in several applications, such as wind energy, automotive, aerospace, telecommunication and construction industries. Carbon fibre reinforced polymeric (CFRP) composite is one of the promising materials with aforementioned inherent properties and applications. These properties vary with different techniques of their manufacturing, such as stacking sequence. Hence, it is germane and important to conduct an extensive study to investigate the effect of stacking sequences on the properties of CFRP composites. Consequently, this paper experimentally investigated the influence of different ply stacking sequences on quasi-static low-velocity impact behaviour of approximately 150 x 130 x 2 mm CFR epoxy composite laminates, manufactured by hand lay-up technique. Five different stacking sequences, denoted as samples A, B, C, E and F were tested under impact loads of 2.00, 2.25 and 2.50 kN. The results showed that the Sample A with stacking sequence of [90/±45/0]s exhibited the highest impact resistance under a maximum load of 2.50 kN before it finally fractured at a maximum displacement of nearly 10.20 mm, prior to an interply delamination occurrence at displacement of approximately 5.50 mm. Similarly stacked sample B recorded the lowest interply delamination damage, while sample C exhibited highest delamination damage. Both samples E and F exhibited similar impact properties. Moreover, samples A, B and C absorbed impact energies of 17.50, 6.25 and 14.13 J, respectively. Conclusively, sample A with highest impact resistance and absorbed energy is hereby recommended, been a promising material for engineering application within the test conditions and parameters, especially under a low-velocity impact load.

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Low-velocity impact behaviour of woven laminate plates with fire retardant resin

Cited by 24 publications

References 24 publications

Assessment of head injury risk caused by impact using finite element models

Assessment of head injury risk caused by impact using finite element models

Effect of interfacial fibre orientation and PPS veil density on delamination resistance of 5HS woven CFRP laminates under mode II loading

Influence of Ply Stacking Sequences on the Impact Response of Carbon Fibre Reinforced Polymer Composite Laminates

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