NJC Developing Tools to Detect 'Kissing Bonds'

摘要

The Navy Joining Center (NJC) is working with the Naval Air Warfare Center in Patuxent River, Md, and the Naval Aviation Depot in Cherry Point, N.C., to identify, evaluate and demonstrate nondestructive evaluation (NDE) technologies for detecting "kissing bonds" in Navy aircraft structures. A kissing bond is defined as a flaw in an adhesive joint where there is intimate mechanical contact between the adhesive and adherend, but there is little or no molecular bonding and therefore low strength. Because there is no separation of the interface, kissing bonds can escape detection by conventional NDE techniques.