Author(s)

A.M. Clayton, M.R. Dorn, M. Evans & G. Fairlie

Abstract

A steel vessel is being considered to contain the blast from high explosive tests. The shock from the detonation causes the vessel to expand and subsequently vibrate, involving both radial movement and vibration. As part of a design study, comparative calculations were performed for one particular model configuration. The explosion was represented as a ball of highly compressed gas that was suddenly allowed to expand. Pressures and impulses were calculated and the elastic-plastic response determined at a number of key locations. The numerical methods involved in the comparison included both 2D and 3D coupled fluid/structure analyses and decoupled 2D analyses. For the coupled analyses LS-DYNA (3D) and AUTODYN-2D co

Keywords