Bercin, AN2020-06-252020-06-251997closedAccess0045-7949https://doi.org/10.1016/S0045-7949(96)00235-0https://hdl.handle.net/20.500.12587/2786At sufficiently high frequencies: where the structural wavelength is much smaller than the thickness of the structure, the rotational inertia and transverse shear effects become increasingly important. In this study the direct-dynamic stiffness method is extended to include shear deformation and rotary inertia. The present method and the statistical energy analysis (SEA) approach are used to investigate the effects of shear distortion and rotary inertia on the flexural energy transmission of a representative stiffened plate structure. It is seen that energy flow decreases significantly when compared with the transmitted energy calculated using the classical thin plate theory. Copyright (C) 1996 Elsevier Science Ltd.eninfo:eu-repo/semantics/closedAccessArticle62474775610.1016/S0045-7949(96)00235-02-s2.0-0031069996Q1WOS:A1997WD04500017Q2