Mobility of a semi-infinite beam with constant curvature

In a straight beam the flexural and longitudinal wave motions are uncoupled . For a curved beam, however, there is interaction between the longitudinal and bending deformations leading to coupled extensional-flexural wave prop agation. In this paper coupled extensional-flexural wave propagation is inv estigated by considering the mobility of a "semi-infinite" beam with a cons tant radius of curvature. Both theoretical and experimental results are dis cussed and formulae for the point and cross mobilities of the structure are presented. (C) 1999 Academic Press.