Strain Rate Dependent Behavior of Glass/Nano Clay Filled Epoxy Resin Composite

摘要: It is believed that addition of small amount nanoclays in the neat epoxy and fiber reinforced composite system can improve mechanical properties. The properties most polymer matrix composites are sensitive to testing rate. However, researches were concentrated on behavior at high strain rates. present research work investigate role clay glass–fiber composites, low terms 1.5 wt%, 3 5 wt% dispersed resin using stirring followed by sonication process. corresponding glass/epoxy nanocomposites prepared impregnating mixture hand lay-up Characterization nanoclay done X-ray diffraction Scanning Electron Microscopy. Tensile stress-strain curves obtained rates 10-4 s-1, 10-3 10-2 10-1 s-1 a hydraulic  machine reporting that, even rates, longitudinal strength stiffness increase as rate increases for all loadings. observed tensile modulus loading both nanocomposites. also noticed decreases increases. failed specimens show marked changes fracture surface with increased electron microscopy used study fiber/matrix/clay adhesion surfaces. Defence Science Journal, Vol. 64, No. 3, May 2014, pp. 295-302, DOI:http://dx.doi.org/10.14429/dsj.64.7331