Dynamic response of cylindrical shells to underwater end-on explosion
Boticario, Luis A.
Kwon, Young W.
Shin, Young S.
MetadataShow full item record
Both numerical and experimental analyses were performed to investigate underwater shock propagation and the induced nonlinear response of cylindrical shells with end caps. The cylinders were subjected to shocks from explosive charges at 12 inches (near-field) and 28 feet (far-field) from the cylinder. And underwater shock test was also performed with the far-field explosion. The numerical results were compared with the experimental data. Stresses and strains occurring in the structure as well as the pressure in the water were studied. The far-field explosion caused the largest circumferential deformations close to both end plates and as accordion oscillatory motion of the cylindrical shell. the near-field explosion caused severe plastic deformation in the neighborhood of the closest end plate to the charge. The stiffeners had, as expected, a large effect on the circumferential stresses than on the longitudinal stresses. The measured and calculated strains agreed well qualitatively near the remote end plate from the charge.
Approved for public release; distribution is unlimited
Showing items related by title, author, creator and subject.
Feuerstein, M.; Agrawal, B.N. (1994);The AA4871 Spacecraft Design course is the capstone class for the M.S. in Astronautics at the Naval Postgraduate School. Thc design team integrated a Topaz If nuclear power system with an EOS Synthetic Aperture Radar to ...
Donoghue, Daniel Richard (Monterey, California. Naval Postgraduate School, 1975);The goal of this research was to experimentally demonstrate the feasibility of a cylindrical shock wave to serve as the major pressure recovery mechanism for wither cylindrical gas dynamic lasers or chemical lasers. An ...
Chu, Peter C. (2009);The Navy’s mine impact burial prediction model creates a time history of a cylindrical or a noncylindrical mine as it falls through air, water, and sediment. The output of the model is the predicted mine trajectory in ...