Underwater Detonation Behavior of Aluminum Fiber Explosive

Aluminum fiber explosive containing explosive and aluminum fiber which is made from pure aluminum is a novel non-ideal explosive.Pressure-time curves of aluminium fiber explosive at different positions were measured by underwater explosion experiments.The peak pressure,impulse,shock wave energy and bubble energy were obtained by analyzing the pressure-time curves.Pressure-time curves can be described by exponential and hyperbolic function at distinct stages.The fitting effect of bubble oscillation curve using normal distribution function is not ideal.That specific bubble energy is52%-58% of the explosion energy,which shows the effect of adding fiber.The explosive energy declines to 75%-85% of the explosion heat because of the imperfect reaction and crushing energy cost of Al fiber.