Volume 16, Issue 1 (January 1988)
Evaluation of Notch Tip Opening Displacement Using a Composite Crack Profile Approach
A composite crack profile model has been used to evaluate the notch tip opening displacement (NTOD) for blunt notches in single-edge-notched (SEN) tension and SEN bending geometries. For the small-scale yielding situation, the values of crack tip opening displacement (CTOD) as a function of the K/σys ratio are almost equal in the two geometries. The NTOD values obtained using the present method are, however, geometry dependent and are more representative of displacement at the notch tip than the values obtained in an earlier paper.