Influence of the Notch Length on the Optimal Radial Location of Strain Gage in a Single Edged Notched Plate

For estimation of accurate mode I stress intensity factor in a single edged notched plate, it is important to place the strain gage within a maximum permissible radial distance \( r_{\hbox{max} } \) [14]. In the present paper, it is aimed to study how the notch length affects this parameter \( r_{\hbox{max} } \). A finite element based procedure is developed based on theoretical formulation analogous to Dally and Sanford technique [16] for cracks. Results show that both notch length and the net ligament length have significant influence on \( r_{\hbox{max} } \) and some interesting observations have been reported.