Identification of wave phenomena at wagons impact

Abstract

At longitudinal impacts, when the structure members are very quickly deformed, complex physical phenomena occur, such as: changes of rheological properties of the material, temperature and chemical changes, etc. During these phenomena, the behavior of the structure can be completely different from its behavior at static loading. The structure fails in getting displacements which correspond to fast changes of loads. Such delay can cause abrupt deformation of the structure. This paper presents theoretical and experimental analysis of wave phenomena at impact of railway wagons. Theoretical considerations have been realized on an idealized beam model, and experimental results refer to test of wagon type Zagkks for transport of liquid petroleum gas.