Analytical and numerical modeling of the transient elasto-dynamic response of a cylindrical tube to internal gaseous detonation

This paper reports the analytical and numerical modeling of the transient elasto-dynamic structural response of a cylindrical tube with finite length to internal detonation loading. The formulation of the proposed analytical model considers the effects of transverse shear and rotary inertia and also describes the effects of reflected waves. In the numerical part of this study, several transient-dynamic linear-elastic finite element analyses are carried out to obtain the structural response of the tube to pressure loads moving at different speeds. The results of the analytical and numerical simulations are compared with experimental results reported in the literature. It is shown that these models are capable of predicting the dynamic structural response of detonation tubes with a high degree of accuracy.