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  1. ; ; ; ; ; ( , Journal of Composite Materials)
    null (Ed.)
    3-point flexural fatigue and Mode I interlaminar fracture tests were done to study the fatigue life and fracture toughness of nanoclay added carbon fiber epoxy composites. Fatigue life data was analyzed using Weibull distribution function, validated with Kolmogorov-Smirnov goodness-of-fit, and predicted by combined Weibull and Sigmoidal models, respectively. The nanophased samples showed more than 300% improvement in mean and predicted fatigue life. At 0.7 stress level, the nanophased samples passed the ‘run-out’ fatigue criteria (10 6 cycles), whereas, the neat samples failed much earlier. The interlaminar fracture toughness of nanophased samples was also enhanced significantly by 71% over neat samples. Optical and scanning electron microscopic images of the nanophased fractured samples revealed certain features that improved the respective fatigue and fracture properties of the composites. 
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  2. ; ; ; ( , Journal of Polymers and the Environment)
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  3. ( , Modern concepts in material science)
    null (Ed.)
    Determination of mechanical properties of modern nanocomposite materials through conventional macroscale test methods is always challenging and questionable. Nanoparticles interact with polymer molecules at a micron to nanoscale, and hence to precisely determine the properties of these composites, micron level test methods such as nanoindentation need to be utilized. In this work, we have used the nanoindentation techniques combined with a recently developed novel Accelerated Property Mapping (XPM) technique to study the statistical quantification of mechanical properties such as hardness and modulus, and the variance of these properties across the phases of Polyetherimide (PEI) nanocomposites reinforced with Zinc titanate (ZnTiO3) nanoparticles. 
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    Accepted Manuscript Full Text Available
  4. ; ; ; ; ( , Microscopy and Microanalysis)
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