ASSESSING ADHESIVE BOND FAILURES: MIXED-MODE BOND FAILURES EXPLAINED By

The level of understanding of adhesive bond failures within the flight safety community is not as robust as it could be. Generally, most investigators are broadly aware of cohesion failure (fracture of the adhesive) and adhesion failure (a slick failure at the interface). They may also have some limited knowledge of common causes for bond failures such as bond-line voids, which is one cause of cohesion failure, or contamination during manufacture, which is one cause of adhesion failure.