Nuclear and Atomic Physics

    

Nuclear Blast Attenuation: The 15-Megaton Castle Bravo Test in Open Terrain vs. [Modern City] with Structural-Based Attenuation

Authors: Nigel Cook

The Castle Bravo test (15-megaton, March 1, 1954, Bikini Atoll) provides a benchmark for nuclear blast effects in open terrain. This article examines how such a blast would be attenuated in [a Modern City] , using structural parameters from Northrop/DTRA (1996), blast equations adjusted with empirical data from Glasstone and Dolan (1977), and structural response equations. Attenuation mechanisms include diffraction, kinetic energy in oscillating buildings, plastic deformation, and flying debris. A structural-based attenuation model, tailored to New York’s reinforced concrete and steel-frame buildings, exp(−R/10), is derived and applied, with energy per unit area tables, a comparison of peak overpressure and dynamic pressure in open terrain versus [a Modern City] , and tables comparing peak overpressure and dynamic pressure before and after urban attenuation.

Comments: 7 Pages.

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Submission history

[v1] 2025-03-27 02:25:31

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