Influence of drilling and abrasive water jet induced damage on the performance of carbon fabric/epoxy plates with holes

Montesano, John; Bougherara, Habiba

doi:10.1016/j.compstruct.2016.12.007

Cited by 49 publications

(36 citation statements)

References 31 publications

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“…10b-d depicts how its embedment caused inter-laminar delamination damage. These results were similarly and recently reported by Montesano et al [20], with machining of carbon/epoxy composite specimens. Figure 10d shows the clearest micrograph of different sized embedded abrasive particles, using higher magnification.…”

Section: Sem Micrographic Analysissupporting

confidence: 92%

“…Montesano et al [20] adopted both conventional drilling (CD) and AWJ drilling techniques to investigate the effects of damage induced by these two techniques on the fatigue performance of a synthetic composite material (carbon fabric/ epoxy plates). The experimental results obtained showed that higher surface roughness was obtained with AWJ holes when compared with the CD holes.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Abrasive water jet drilling of advanced sustainable bio-fibre-reinforced polymer/hybrid composites: a comprehensive analysis of machining-induced damage responses

Dhakal

Ismail

Ojo

et al. 2018

Int J Adv Manuf Technol

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This paper aims at investigating the effects of variable traverse speeds on machining-induced damage of fibre-reinforced composites, using the abrasive water jet (AWJ) drilling. Three different types of epoxy-based composites laminates fabricated by vacuum bagging technique containing unidirectional (UD) flax, hybrid carbon-flax and carbon fibre-reinforced composite were used. The drilling parameters used were traverse speeds of 20, 40, 60 and 80 mm/min, constant water jet pressure of 300 MPa and a hole diameter of 10 mm. The results obtained depict that the traverse speed had a significant effect with respect to both surface roughness and delamination drilling-induced damage responses. Evidently, an increase in water jet traverse speed caused an increase in both damage responses of the three samples. Significantly, the CFRP composite sample recorded the lowest surface roughness damage response, followed by C-FFRP, while FFRP exhibited the highest. However, samples of FFRP and hybrid C-FFRP recorded lowest and highest delamination damage responses, respectively. The discrepancy in both damage responses, as further validated with micrographs of colour video microscopy (CVM), scanning electron microscopy (SEM) and X-ray micro-computed tomography (X-ray μCT), is attributed to the different mechanical properties of the reinforced fibres, fibre orientation/ply stacking and hybridisation of the samples.

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Section: Sem Micrographic Analysissupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Abrasive water jet drilling of advanced sustainable bio-fibre-reinforced polymer/hybrid composites: a comprehensive analysis of machining-induced damage responses

Dhakal

Ismail

Ojo

et al. 2018

Int J Adv Manuf Technol

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“…Cięciu poddaje się różnorodne materiały -począwszy od stopów metali czy tworzyw polimerowych, przez surowce mineralne, po materiały naturalne -wykorzystywane w rozmaitych sferach działalności czło-wieka [1][2][3]. Ostatnie lata to okres dynamicznego rozwoju technologii cięcia wysokociśnieniową strugą wodno-ścier-ną [3,7,8,10,11]. Wynika to m.in.…”

Section: Abstract: Abrasive Water Jet Adhesive Joints Surface Layerunclassified

Assessment of surface finish quality of metal/composite compound structures as cut by abrasive water-jet

Ochal¹,

Kuczmaszewski²,

Kłonica³

2017

Mechanik

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Przedstawiono wybrane wyniki badań jakości powierzchni próbek klejonych po cięciu. Badane materiały klejono w ukła-dzie klasycznej zakładki oraz w układzie sandwich w różnych wariantach. Proces cięcia realizowano z użyciem technologii waterjet ze zmiennym parametrem pracy v f . SŁOWA KLUCZOWE: cięcie hydroabrazywne, połączenia klejowe, warstwa wierzchnia The paper presents selected results of the surface quality measurements on the as cut bonded samples. The test materials were conventional lap bonded samples or sandwich bonded samples in different arrangements. Water jet method was applied under variable speed v f . KEYWORDS: abrasive water jet, adhesive joints, surface layerPrzecinanie jest operacją występującą w wielu procesach produkcyjnych. Cięciu poddaje się różnorodne materiały -począwszy od stopów metali czy tworzyw polimerowych, przez surowce mineralne, po materiały naturalne -wykorzystywane w rozmaitych sferach działalności czło-wieka [1][2][3]. Ostatnie lata to okres dynamicznego rozwoju technologii cięcia wysokociśnieniową strugą wodno-ścier-ną [3,7,8,10,11]. Wynika to m.in. z licznych zalet tej obróbki (w tym możliwości jej zastosowania do szerokiej gamy materiałów i w wielu obszarach techniki -np. w lotnictwie, motoryzacji czy budowie maszyn) oraz z postę-pu technicznego, który umożliwił znaczące zwiększenie ciśnienia wody. W literaturze można znaleźć informacje na temat zalet i wykorzystania obróbki wysokociśnieniową strugą wodno-ścierną do cięcia różnych materiałów [9], jednak brakuje danych o jej zastosowaniu do cięcia klejonych struktur przekładkowych.Obecnie w technice klejone konstrukcje często poddaje się dalszej obróbce, np. frezowaniu lub cięciu. Ze względu na fakt, że te operacje mogą być operacjami końcowymi, ważne jest zachowanie jednorodności spoiny klejowej. Przeprowadzone dotychczas badania dotyczące cięcia klejonych materiałów polimerowych wskazują na moż-liwość obróbki takich struktur bez wyraźnych większych wad powierzchni oraz rozwarstwień lub innych uszkodzeń w strefie złącza klejowego [4][5][6]12].

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“…FRP composites especially GFRP composites are primarily used in civil applications to increase flexural capacities, shear capacity and the ductility of concrete load bearing members. Glass fiber reinforced polymer composites are possibly used in civil and construction applications as mechanical fastening joints to join different structural members however, a source of stress concentration around the hole may results and thereby the tensile strength of the composite structures decreases as reported in [19][20][21]. The stress distribution due to the presence of a circular hole in a composite plate has been simulated by mathematical modeling as reported in [22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Effect of Environmental Exposure on the notch sensitivity of GFRP Composites Used in Construction

2020

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T HE present research investigated the effect of different environmental conditions including moisture, saline and alkaline conditions on the notch sensitivity of short and 2D plain woven glass fibers reinforced epoxy matrix composites fabricated by the hand lay-up technique with fiber volume content of 23.5 and 38.6 vol.%, respectively. The test was carried out through open hole tension test at constant ratio of (D/W = 0.2) and the notch sensitivity of these composites under different environmental conditions was evaluated by comparing the notched tensile strength and the characteristic distance (do) of these composites applying Whitney-Nuismer mathematical model. The obtained results indicated that the environmental exposure has a pronounced negative effect on the notched tensile strength of all composites compared to the unconditioned state (virgin state). Moreover, the fracture zone of the composites under the alkaline environment is smooth and shows much less fiber pull out validated by SEM micrographs which distinguishes brittle failure.

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Influence of drilling and abrasive water jet induced damage on the performance of carbon fabric/epoxy plates with holes

Cited by 49 publications

References 31 publications

Abrasive water jet drilling of advanced sustainable bio-fibre-reinforced polymer/hybrid composites: a comprehensive analysis of machining-induced damage responses

Abrasive water jet drilling of advanced sustainable bio-fibre-reinforced polymer/hybrid composites: a comprehensive analysis of machining-induced damage responses

Assessment of surface finish quality of metal/composite compound structures as cut by abrasive water-jet

Effect of Environmental Exposure on the notch sensitivity of GFRP Composites Used in Construction

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