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Abstract ▼ AI-Helper

The effects of near-field detonation of high explosives in free air are characterized by blast overpressure and impulses. The typical practice for blast resistant design of structures in the United States, United Kingdom and elsewhere involves the use of the US government-published document of UFC 3...

The effects of near-field detonation of high explosives in free air are characterized by blast overpressure and impulses. The typical practice for blast resistant design of structures in the United States, United Kingdom and elsewhere involves the use of the US government-published document of UFC 3-340-02. The UFC 3-340-02 approach has been developed for far-field detonations based on a number of test results but not been validated for near-field detonations due to a lack of the test data. Further, the near-field effects including the rarefaction wave, afterburning and expanding detonation products, fireball have not been addressed in the existing design approaches including UFC 3-340-02. Numerical studies are therefore performed to examine the effect of near-field detonations on blast overpressure and impulse. Recommendations for determining blast loading in the near field are provided.

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