Open Access

ABSTRACT

Dynamic Compressive Response of Polymeric Nanocomposites

W. Chen¹, B. Song¹

1 Schools of Aero./ Astro. and Mat. Engr., Purdue University, W. Lafayette, IN 47907-2023, USA.

The International Conference on Computational & Experimental Engineering and Sciences 2007, 3(1), 51-56. https://doi.org/10.3970/icces.2007.003.051

Abstract

Polymeric nanocomposite materials present potentials in applications with high-rate loading. In the experiments to determine the dynamic response of such nanocomposites, we used pulse shaping techniques on a split Hopkinson pressure bar (SHPB) for constant-strain-rate deformation under dynamically equilibrated stresses in specimens such that accurate stress-strain curves at various dynamic strain rates were obtained. Corresponding quasi-static stress-strain was also obtained to study the rate effects over a wide range. In this paper, the dynamic and quasi-static compression experimental results are presented and discussed on two types of polymeric nanocompositres: a polycarbonate (PC)/clay nano-composite and a set of epoxidized soybean oil (ESO)/clay nanocomposites with various nanoclay weights. Strain-rate and nanoclay weight effects on the compressive properties of the nanocomposites were experimentally determined.

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