Dynamic fracture analysis of a ring stiffened cylinder subjected to a strong acoustic wave

초록

Dynamic fracture analysis and its response by shock wave caused by the non-contact underwater explosion are significant in the design of reliable marine vessels. In the USA navy, it is regulated to conduct the shock test of the marine vessels under explosion conditions in the development stage. However, the shock test is limitsed because of very high costs and environmental safety concerns. As analytic solutions are also limited to very simple cases of fluid-structure interaction problems, an accurate numerical simulation technique is developed and proposed in the study.