P. Olsson et G. Kristensson, WAVE SPLITTING OF THE TIMOSHENKO BEAM EQUATION IN THE TIME-DOMAIN, Zeitschrift fur angewandte Mathematik und Physik, 45(6), 1994, pp. 866-881
In recent years, wave splitting in conjunction with invariant imbeddin
g and Green's function techniques has been applied with great success
to a number of interesting inverse and direct scattering problems. The
aim of the present paper is to derive a wave splitting for the Timosh
enko equation, a fourth order PDE of importance in beam theory. An ana
lysis of the hyperbolicity of the Timoshenko equation and its, in a se
nse, less physical relatives - the Euler-Bernoulli and the Rayleigh eq
uations - is also provided.