Shock ignitability test for azide polymer propellants

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Abstract
The shock ignitability test, which is relatively simple method yet rarely applied to solid rocket propellants, was used to evaluate the sensitivities of azide polymer propellants. Variations in sensitivities were observed when compared with results from the card gap test. Although AP-based propellants were insensitive in the card gap test, they demonstrated high ignitability in this test. These differences are ascribed to differences in sample weight, the manner in which samples are held, and the input energy from the donor explosive. It was found that the results of the shock ignitability test were closer to those of the fragment impact test than to those of the card gap test.

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