Dynamic responses of discrete multilayered wound ribbon vessels subjected to blast loading

The dynamic responses of discrete multilayered wound ribbon vessels(DMWRV) subjected to internal explosion loading were numerically simulated by using LS-DYNA3D. Several kinds of winding angles were considered. The simulated results were compared with the experimental results, theoretical analysis and numerical results of a monobloc thick-walled high-pressure vessel. Compared results indicate the following: (1) the stress distribution in the ribbon layers of DMWRV is homogeneous; (2) the bigger the winding angle is, the bigger the final displacement of the outermost layer is subjected to the same TNT; (3) the DMWRV has excellent property of leak before burst at worst, which is impossible for the monobloc thick-walled high pressure vessel. Simulated results are helpful to establish the engineering design criteria of the explosion containment vessels.