3-DIMENSIONAL WAVE-PROPAGATION IN COMPOSITE CYLINDRICAL-SHELLS

An exact solution of free harmonic wave propagation in a composite lam inated cylindrical shell is presented within the framework of the theo ry of three-dimensional cylindrically anisotropic elasticity. The disp ersion equation governing these motions is established through a helic al solution form in conjunction with a Frobenius power series method. Degenerate cases of infinite wavelength, axisymmetric waves, and of or thotropic shells are derived and discussed. Analytical results are pre sented for a variety of cases and are compared with those obtained fro m a Flugge shell theory. (C) 1998 Elsevier Science Ltd. All rights res erved.