Tunable Mechanical Properties of Hollow- glass Microsphere Modified Polyurea Composites

摘要

Polymer-based microcellular foam materials can attenuate impact- or blast-induced loads by cell buckling mechanism at low impact velocities or low pulse pressure intensities, yet the efficiency of stress transmission is limited by the extent of plateau stress before the densification occurs. Furthermore, stress enhancement can take place in these foam materials upon exposure to an intensive loading, which could result in even greater damage to the protective structures [1]. This research is focused on the development of alternate polymeric materials which are capable to attenuate the peak pressure and impulse of a blast wave in air for blast energy absorption.