TC4 - Lecture 11
Fracture of adhesive joints using J-integral
J-Integral, which is a quantity of non-linear elastic field theory, is often used to determine crack resistance in a continuous medium. Its application to adhesive joints allows direct experimental identification of cohesive laws, which e.g. can be used to model adhesive failure in automotive crash simulations or similar industrial challenges. The lecture will shortly recapitulate the basics of J-integral and emphasize existing limitations, advantages and disadvantages related to an application to different kinds of adhesive joints. Finally, appropriate experimental setups for individual fracture modes including typical test data and their evaluation will be presented and discussed.