A HEAT TRANSFER MODEL STUDY OF THE HOT WIRE INITIATOR
NAVAL WEAPONS LAB DAHLGREN VA
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A mathematical heat transfer model, applicable to determining the sensitivity to input current of a hot wire initiator, is developed. Simplifying assumptions are introduced which make the model amenable to solution using a medium size analog computer. The model is applied to the MARK 45 MOD O impulse cartridge. Solutions are compared to empirical sensitivity data for this cartridge conditioned at -80F, 68F and 225F.
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