Abstract
The complete physical process of the nonlinear reflection of an incident P‐wave from a stress‐free boundary has been investigated analytically. The objective of this research is to evaluate the feasibility of using the second harmonic generation technique in reflection mode. The primary wave field consists of an incident plane P‐wave and linearly reflected P‐ and SV‐waves. Self‐ and cross‐interaction of these primary waves generate secondary waves, which, together with the primary waves, produce the nonlinear stress field at the boundary. The involved nonlinear boundary value problem (BVP) is decomposed into two linear BVPs by perturbation and general solutions of them are given. The obtained solution for the secondary field shows that the generation of second harmonic waves in the bulk is strongly affected by the nonlinear stress field at the boundary. Changes in the second harmonic amplitudes upon the boundary reflection are calculated numerically for different angles of incidence for aluminum. The case...
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
