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Abstract
A detonation is a combustion wave that propagates in an inflammable medium at supersonic speeds. This phenomenon is important in the fields of supersonic propulsion and combustion safety. A shock wave or explosion wave shows complicated behavior when it interacts with a structure. Studying the behavior of a pressure wave loaded by a shock wave or detonation wave in a confined tube and its interaction with the tube wall is important. This type of coupling problem has gained even more importance after the Fukushima nuclear reactor accident in 2011 and has become the topic of many studies. One difficulty with the coupling problem is how a gas or liquid couples with a solid. A numerical solution to this problem has not yet been found. In the present study, we numerically examined the one-way coupling between a shock wave/a detonation wave and a tube. We used the open-source code Elmer to calculate the solid phase and our in-house code to calculate the shock wave. We compared our numerical results for the shock wave problem with experimental results from another research group for validation and simulated the detonation to observe the physics of the solid tube behavior. The results revealed an interesting behavior in the solid tube response.