Axisymmetric deformations of straight cylindrical tubes under shock wave loading

摘要

The tube strains caused by shock waves passing through the tube are investigated. The tubes are straight and cylindrical and the deformations axisymmetric. Two models are developed that allow the computation of the strains for differently fixed tubes. The models are simple and lead to equation of motions that can easily be solved. The characteristics of the tube deformations caused by shock waves can be studied and described by these models. It is shown that the chosen approach to compute the tube strains is suited to reproduce experimental results. The comparison between computation and experiment also indicates that the structural damping activated by these high speed waves may be small.