Explosive Loading of a Deformable Underwater Structure.
GEO-FRACTURING INC EL PASO TEX*
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The full HEMP numerical code, modified to permit an enlarged memory, has been used on the CDC 7600 computer to calculate the complete field solution for the loading of submerged thin shell structures, of cylindrical and spherical geometries, due to a nearby intense underwater explosion. No exact theoretical solution exists for the propagation of strong nonlinear waves past such deformable structures. However, the acoustic case has been solved analytically by Mnev and Pertsev 1971, providing a direct comparison with supplementary calculations with the HEMP code for an acoustic wave emanating from a weak explosion. Agreement with the acoustic solution is quite satisfactory. The particular application described in this work to nonlinear fluid-shell interaction problems holds the promise of significant advances in structural design which have heretofore been limited to loading levels corresponding to weak explosive waves in the linear acoustic range. Author
- Structural Engineering and Building Technology
- Underwater Ordnance