resonance ultrasonic spectroscopy of a nanofibrous composite and studying the effect of surface/interface

resonances are intrinsic characteristics of an elastic object, which are completely independent of thesource of excitation. the appropriate utilization of the information contained within the resonancespectra and the identification of the resonance frequencies of the object can be used as a potent toolfor material characterization. in this paper, a new mathematical model for the wave diffraction from acylindrical nanofiber encased in an elastic matrix is introduced. the new model is used to evaluate thescattered pressure field resulting from normal insonification on a single nanofibrous composite. it isshown that there are specific resonances, which arise from the surface/interface energy between thenanofiber and solid matrix. they can be used to determine the characteristics and properties of fibrousnanocomposites.