Bond testing is a useful means of verifying that layers of material that have been glued together with adhesive actually are bonded together.
How Bond Testing Works
The use of adhesive bonding to join metals, composites, plastics, and other materials is increasing across many industries. The aircraft industry widely adopted metal to metal bonding after World War II. This has since spread to different material combinations and other industrial sectors, including modern aerospace, automotive, marine, and wind energy.
Bonded joints offer many advantages over conventional methods, such as bolting, riveting, and welding. Weight saving is key, but other benefits include an improved distribution of stresses by eliminating the need for holes and welds, easier design and assembly of large-area joints or curved external surfaces, and an integrally sealed joint, often using dissimilar materials, that can avoid electrolytic corrosion and is less sensitive to crack propagation.