One-Dimensional Localization of Elastic Waves in Rib-Stiffened Plates

The 1-dimensional localization of elastic waves in disordered periodic multi-span rib-stiffened plates is investigated. The transfer matrix method is employed to obtain the transfer matrix of the system, and the method for calculating the Lyapunov exponents in continuous dynamic systems presented by Wolf is used to determine the localization factor. As examples, the numerical results of the localization factors are given for a disordered rib-stiffened plate. The effects of the degree of disorder of span length and the structural parameters on the elastic wave localization are analyzed.