Nondestructive Evaluation of Adhesive Bonds Using 20 Mhz and 25 Khz Ultrasonic Frequencies on Metal and Polymer Assemblies

Demands for improvements in aerospace and automotive energy-efficiency, performance, corrosion resistance, body stiffness and style have increased the use of adhesive bonds to help meet those demands, by providing joining technology that accommodates a wider variety of materials and design options. However, the history of adhesive bond performance clearly indicates the need for a robust method of ...