M.S. Thesis Presentation by Mehdi Batel
Monday, July 9, 2001

(Dr. David Trivett, advisor)

"Acoustic Determination of Adhesive Bond Delaminations"

Abstract

Submarine sonar hull arrays are attached with an adhesive bond layer approximately one inch thick.  The material used for the adhesive (Versathane) has the property of its cohesive strength developing faster than its adhesive strength along with volume shrinkage, as it cures.  These properties resulting in the adhesive having the potential to pull away from the bonding surfaces, held at a fixed separation, if the mold is filled too rapidly.

This effort will investigate, both numerically and experimentally, the ability of elastic waves propagating in the plane of the adhesive and measured at the edges to detect the presence of bond delaminations.