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Behaviour of Syntactic and Partial Hollow Sphere Structures under Dynamic Loading

A study was conducted to configure the morphology and topology influences of metallic hollow sphere structures (MHSS) with dynamic impact loading that necessitates incorporation of the strain rate sensitivity. Finite element computational simulations of MHSS properties under high strain rates were conducted for explaining strain rate sensitivity and geometric nonlinearities in the macroscopic material response. The MHSS behavior under uniaxial impact loading conditions was examined using the explicit finite element code LS-DYNA. The stress-strain characteristics of cubic MHSS with syntactic and partial morphology under compressive loading was also analyzed. Computational simulations show that the response of MHSS liable to dynamic loading depends on the strain rate, topology, sphere wall thickness and morphology.