Dynamic load on a pipe caused by acetylene detonations - experiments and theoretical approaches

The load acting on the wall of a pipe by a detonation, which is travelling through, is not yet well characterized. The main reasons are the limited am ount of sufficiently accurate pressure time history data and the requiremen t of considering the dynamics of the system. Laser vibrometry measurements were performed to determine the dynamic response of the pipe wall on a deto nation. Different modelling approaches were used to quantify, theoretically , the radial displacements of the pipe wall. There is good agreement betwee n measured and predicted values of vibration frequencies and the propagatio n velocities of transverse waves. Discrepancies mainly due to wave propagat ion effects were found in the amplitudes of the radial velocities. They mig ht be overcome by the use of a dynamic load factor or improved modelling me thods.