The fracture and fatigue behaviour of nano-modified epoxy polymers
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The introduction of nano-silica particles into an epoxy polymer has increased both the initial toughness, as measured by the fracture toughness, KIc, and also significantly improved the cyclic-fatigue behaviour of the epoxy polymer. Thus, the significant increases recorded in the values of the range of applied stress-intensity factor at threshold, ΔKth, from the cyclic-fatigue tests for the nano-silica modified materials are very noteworthy, since these increases are accompanied by significant improvements being recorded in the initial toughness.
KeywordsFracture Toughness Rubber Particle Epoxy Polymer Plastic Void Growth Unmodified Epoxy Polymer
The authors wish to thank the Henkel Corporation for financial support and Nanoresins AG for the supply of material.
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