Revisit the analysis of end-notched-flexure (ENF) specimen

Inconsistency of expressions for energy release rate for delamination (G) of end-notched-flexure (ENF) specimen is presented. The paper identifies the source of the inconsistency, and shows that based on Timoshenko beam theory, value of G should not depend on the shear modulus of the fibre composite materials. (c) 2006 Elsevier Ltd. All rights reserved.