Abstract
Syntactic foams are hollow particle filled composite materials containing closed-cell porosity. Reinforcement of porosity by the shell of the hollow particle results in high mechanical properties of these foams compared to foams containing gas porosity and enables their structural applications. The present work is focused on discussing dynamic properties of syntactic foams. More specifically, properties of syntactic foams under high strain rate compression and blast loading conditions are discussed for potential applications in lightweight armors and military structures. The wall thickness and volume fraction of hollow particles can be tailored to obtain high damping in these materials. Crushing of hollow particles and particle-matrix interfacial failure provide additional mechanisms of energy absorption, which can be used to develop syntactic foams with high energy absorption capabilities.
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