JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME, v. 124, issue. 2, page. 206-214
Abstract
The fracture behavior of an interface crack tip has significant influence on the structural
integrity of an adhesive joint. We investigate a damage zone and the deformation of
rubber particles around a tip of an interface crack between rubber-modified epoxy resin
and aluminum. They are compared with those around a crack tip in homogeneous rubbermodified epoxy resin. Cavitations in rubber particles are observed around a damaged
crack tip in homogeneous resin but not around a damaged interface crack tip. Rubber
particles around an interface crack tip are deformed ellipsoidally due to the residual
stress even before being damaged, and interfaces between rubber particles and epoxy
resin around an interface crack tip are debonded after being damaged.