The tensile fatigue behaviour of a silica nanoparticle-modified glass fibre reinforced epoxy composite

Manjunatha, CM and Taylor, AC and Kinloch, AJ and Sprenger, S (2010) The tensile fatigue behaviour of a silica nanoparticle-modified glass fibre reinforced epoxy composite. Composites Science and Technology, 70 (1). pp. 193-199. ISSN 0266-3538

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Abstract

An anhydride-cured thermosetting epoxy polymer was modified by incorporating 10 wt.% of well-dis�persed silica nanoparticles. The stress-controlled tensile fatigue behaviour at a stress ratio of R = 0.1 was investigated for bulk specimens of the neat and the nanoparticle-modified epoxy. The addition of the silica nanoparticles increased the fatigue life by about three to four times. The neat and the nanopar�ticle-modified epoxy resins were used to fabricate glass fibre reinforced plastic (GFRP) composite lami�nates by resin infusion under flexible tooling (RIFT) technique. Tensile fatigue tests were performed on these composites, during which the matrix cracking and stiffness degradation was monitored. The fatigue life of the GFRP composite was increased by about three to four times due to the silica nanoparticles. Sup�pressed matrix cracking and reduced crack propagation rate in the nanoparticle-modified matrix were observed to contribute towards the enhanced fatigue life of the GFRP composite employing silica nano�particle-modified epoxy matrix.

Item Type:	Article
Uncontrolled Keywords:	Nano composites, Polymer matrix composites (PMCs), Fatigue, Matrix cracking
Subjects:	CHEMISTRY AND MATERIALS > Chemistry and Materials (General) CHEMISTRY AND MATERIALS > Composite Materials
Depositing User:	Mrs SK Pratibha
Date Deposited:	24 Aug 2022 16:35
Last Modified:	24 Aug 2022 16:35
URI:	http://nal-ir.nal.res.in/id/eprint/13620

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