Open Access
Improved fracture toughened epoxy matrix system reinforced with recycled milled carbon fibre
Sagar T. Cholake,Grainne Moran,Bill Joe,Yu Bai,Raman Raghuvir Kumar Singh,Xiao Ling Zhao,Sami H. Rizkalla,Sri Bandyopadhyay +7 more
- Vol. 2, Iss: 2, pp 1-10
Reads0
Chats0
TLDR
In this paper, a stereology study of fracture surfaces of 1 to 10 wt. % short milled carbon fiber reinforced epoxy was carried out, where the mean free path between fibres is 600 μm.Abstract:
A stereology study of fracture surfaces of 1 to 10 wt. % short milled carbon fibre (SMCF) reinforced epoxy was carried out. Single edge notch bending (SENB) sharp crack samples over a fracture length of 10 mm, covering over 90 % fast crack growth, show that fibre – to – fibre distance significantly decreases with increased SMCF content. For 1% SMCF, the mean free path between fibres is 600 μm, whereas for 10 % SMCF, the mean free path is 110 μm, based on over 200 SEM images for each composition. In SENB sharp crack specimens tested at 2.8 mm/min, the slow crack growth region (length nearly zero for neat epoxy and maximum 1.14 mm for 10% SMCF-epoxy composite) shows intensive debonding and pull-out mechanisms. Fracture toughness (KIC) increased from 0.78 MPam1/2 for neat epoxy to 2.71 MPam1/2 for 10 weight % SMCF/epoxy composites thanks to the combined effect of fibre stereology and the debonding/pull-out mechanisms. Notably, the flexural modulus of the 10 wt. % SMCF reinforced epoxy was 58 % higher than that of the neat epoxy.read more
Citations
More filters
Journal ArticleDOI
Improved Mode I fracture resistance of CFRP composites by reinforcing epoxy matrix with recycled short milled carbon fibre
Sagar T. Cholake,Grainne Moran,Bill Joe,Yu Bai,R.K. Singh Raman,Xiao Ling Zhao,Sami H. Rizkalla,Sri Bandyopadhyay +7 more
TL;DR: In this article, the incorporation of recycled short milled carbon fiber (SMCF) in epoxy resin can lead to the generation of significantly tougher carbon fibre reinforced polymer (CFRP) systems in a cost effective manner for infrastructural applications.
Journal ArticleDOI
One-step amino-functionalization of milled carbon fibre for enhancement of thermo-physical properties of epoxy composites
TL;DR: In this paper, isobutyronitrile radicals in situ produced from thermal decomposition of 2,2′-azobisisobutyritrile (AIBN), were covalently grafted on milled carbon fibre (MCF) surface, assisted by microwave irradiation, as evidenced by FTIR, Raman, and TGA analysis.
Journal ArticleDOI
How fracture toughness of epoxy-based nanocomposite is affected by PA66 electrospun nanofiber yarn
TL;DR: In this article, different PA66 nanofiber yarn contents (0.5, 1 and 3 ) were used to improve the fracture toughness of the epoxy-based nanocomposite.
Journal ArticleDOI
Toughening epoxy syntactic foams with milled carbon fibres: Mechanical properties and toughening mechanisms
TL;DR: In this paper, hollow glass microspheres (GMS) were used to increase the toughness of syntactic foams, by introducing energy absorption mechanisms, to foams comprising ∼60% GMS.
Journal ArticleDOI
Electrospun styrene-butadiene copolymer fibers as potential reinforcement in epoxy composites: Modeling of rheological and visco elastic data
TL;DR: In this article, nanofibers of poly (styrene-co-butadiene) copolymer were successfully fabricated using electrospinning technique and the morphology of the prepared fibers was observed by Polarized light microscope (PLS) and Transmission Electron Microscope (TEM).
References
More filters
Journal ArticleDOI
The elasticity and strength of paper and other fibrous materials
TL;DR: In this paper, an analysis of the effect of orientation of the fibres on the stiffness and strength of paper and other fibrous materials is made, and the results of the analysis are applied to certain samples of resin bonded fibrous filled materials and moderately good agreement with experimental results is found.
Journal ArticleDOI
Effects of particle size, particle/matrix interface adhesion and particle loading on mechanical properties of particulate–polymer composites
TL;DR: In this article, the effects of particle size, particle/matrix interface adhesion and particle loading on the stiffness, strength and toughness of such particulate polymer composites are reviewed.
Book
Elementary engineering fracture mechanics
D. Broek,James R. Rice +1 more
TL;DR: In this paper, the authors proposed a method to detect cracks in a crack-penetrization model, based on the Griffith criterion, which is used to detect the presence of a crack at a crack tip.
Journal ArticleDOI
Theory of Filler Reinforcement
TL;DR: In this article, the authors generalized the model for ellipsoidal (including plate-and rod-like) filler particles and extended it to the computation of various properties in terms of the properties of the matrix and of the fillers.
Journal ArticleDOI
A review of the present and future utilisation of FRP composites in the civil infrastructure with reference to their important in-service properties
TL;DR: In this article, the authors discuss the development of the advanced polymer composite material applications in the building and civil/structural infrastructure over the past three to four decades and highlight the important in-service research areas which are necessary to improve the understanding of the behavior of FRP materials and FRP structural components.
Related Papers (5)
On recycled carbon fibre composites manufactured through a liquid composite moulding process
Darshil U. Shah,Peter Schubel +1 more