Theoretical and Numerical Analysis of Blasting Pressure of Cylindrical Shells under Internal Explosive Loading

Cylindrical shells are principal structural elements that used for many purposes, such as offshore, sub-marine, and airborne structures. The nonlinear mechanics model of internal blast loading was established to predict the dynamic pressure cylindrical shells. However, due complexity mechanical model, solution process is time-consuming. In this study, linearized, solved. First, a subjected proposed. To simplify calculation, reduced linearly uniform variations. Second, according stress function method, equation derived. Third, calculated results compared with those finite element method (FEM) under different durations pulse. Finally, reduce errors, further optimized. demonstrate optimized in good agreement FEM, feasible linearize