Investigation on delamination and flexural properties in drilling of carbon nanotube/polymer composites

Heidary, Hossein; Karimi, Navid Zarif; Minak, Giangiacomo

doi:10.1016/j.compstruct.2018.06.041

Cited by 68 publications

(20 citation statements)

References 33 publications

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“…Poor surface roughness and inter-laminar delamination aid crack initiation and propagation as well as fibre-matrix de-bonding damage. These damages reduce the load bearing capacity, efficiency and structural integrity (durability) of the FRP composite components of systems [11]. Hence, there is need to understand these problems in terms of their mechanisms of propagation during AWJ drilling operation.…”

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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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: 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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“…They planned experiments by Taguchi method and investigated geometric deviations to find optimum levels of parameters (Meral et al, 2011). There are lots of experimental works on optimization of drilling parameters for different materials (Ramesha et al, 2018, Heidary et al, 2018, Motorcu et al, 2014, Kaplan et al, 2015.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Statistical Investigation of Drilling of Aisi 1040 Steel at Dry and Wet Conditions

Özsoy

2020

Konya Journal of Engineering Sciences

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AISI 1040 steel is widely used in the machinery and manufacturing industries and is used in a variety of machine parts, automotive parts, molds, fixtures and many other areas. Technological developments in the field of machining in recent years have led to many problems affecting machining performance. Drilling is one of the most important machining operations. In this study effect of drilling parameters such as cutting speed (15, 20 m/min), feed rate (0.1, 0.15 mm/tooth), type of drill (HSS-E, HSS-E TiN coated), drilling type (standard, pecking) and cooling type (liquid, air) were examined on AISI 1040 steel. Parameters' effects on surface roughness were investigated. Experiments were planned according to L8 orthogonal array. Optimum conditions were found via Taguchi's Signal/Noise analysis. Probability analysis was performed to discover the distribution of the measured/calculated values of the results. Lastly, confirmation tests were conducted to control the success of the optimization. The optimal conditions for surface roughness were observed at A1B2C2D1E2 (i.e., cutting speed: 15m/min, feed rate: 0.15mm/tooth, cooling type: liquid, drilling type: standard, and type of drill: HSS-ETiN coated).

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“…Additionally, numerous authors have proposed the entry and exit delamination influence factors [18], and the thrust force [19][20][21], torque [22] and surface roughness [23,24] have been discussed. Moreover, using statistical techniques such as the Taguchi method [25,26], response surface methodology (RSM) [27,28], gray relational analysis (GRA) and corresponding hybrid methods [29][30][31] were proposed by many authors to obtain high-quality holes using drilling. Although many researchers widely used statistical optimization techniques to solve multiobjective optimization problems simultaneously, the solutions provided by the statistical techniques are often discrete combinations of a predetermined level of process parameters, and sometimes, these combinations may not be optimum.…”

Section: Introductionmentioning

confidence: 99%

Modeling and evolutionary computation on drilling of carbon fiber-reinforced polymer nanocomposite: an integrated approach using RSM based PSO

Vijayan

Rajmohan

2019

J Braz. Soc. Mech. Sci. Eng.

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Among the various classifications of fiber-reinforced polymer composites, carbon fiber-reinforced plastic (CFRP) composite materials have great potential in aerospace, automobile and marine industries. Drilling is a common machining process of CFRP composites. Surface delamination, tearing, abrasion, denting, cutting of fibers, formation of voids, fiber bending and pullout, etc. are significant problems that occur in the drilling of CFRP composites, among which surface delamination is identified as a critical issue. By optimizing the drilling parameters, the effect of delamination can be minimized, resulting in good quality holes. The drilling process involves several critical process parameters. Therefore, achieving accurate holes during the process is extremely difficult. Three significant drilling process parameters were considered in the present investigation aimed at achieving an optimum drilling response: the thrust force and entry and exit delamination factors. An integrated response surface methodology-based particle swarm algorithm was used to obtain optimal drilling parameters. The obtained optimal settings for CFRP drilling are a drilling speed of 1100 rpm, a feed rate of 5 mm/rev, 5% CNTs and a 110° point angle. The high feed rate increases the thrust force and entry and exit delamination factors in the drilling of fabricated hybrid nano-CNT/CFRP composites.

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Investigation on delamination and flexural properties in drilling of carbon nanotube/polymer composites

Cited by 68 publications

References 33 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

Experimental and Statistical Investigation of Drilling of Aisi 1040 Steel at Dry and Wet Conditions

Modeling and evolutionary computation on drilling of carbon fiber-reinforced polymer nanocomposite: an integrated approach using RSM based PSO

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