Analysis and Characterization of Interfacial Fracture Toughness in Model Composite
Abstract
The aim of the present study is to evaluate interfacial fracture toughness in model polyester/epoxy composite. This composite system was recently studied by Tandon and Pagano [1] in a push-out test. The progressive debonding portion of the load-displacement response including initiation of debonding, propagation and eventually catastrophic debonding of the remainder of the bonded interface were predicted using a single parameter characterized as the critical shear energy release rate of the interface. The model [1] predicted the apparent toughness of the interface to increase with the length of the debond while the numerical contribution of shear stresses to the potential energy release rate was found to be nearly constant.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Nov 15, 1998
- Source ID
- 10.1115/imece1998-1172
Entities
People
- G. P. Tandon
- R. Y. Kim
Organizations
- Air Force Research Laboratory