Evaluation of Mixed-Mode Fracture (KI & KII) in Epoxy using AECS Configuration

Abstract

Mixed-mode fracture tests are conducted on Asymmetric Edge Cracked Semi-circular (AECS) bend specimens made of Epoxy Resin material. AECS specimens are exposed to 3-point bend asymmetric loading. The crack parameter stress intensity factor (SIF) for different support locations and crack lengths is obtained using ANSYS. By selecting suitable locations for the load points, complete mode mixes (mode I to II) can be attained. A sequence of fracture experiments are carried out and results were obtained on proposed specimens made of epoxy and a very decent agreement was achieved among the experimental results and the predicted results.