The influence of geometry of edge-cracked plates on KIand KIIcomponents of the stress intensity factor, studied by caustics

Publisher Website
Google Scholar
Abstract
The experimental method of reflected caustics has been used to study the influence of the geometry of an edge-cracked plate on stress intensity factors KI and KII. This influence was determined for various values of the ratio, alpha /w, of the crack length to the width of the specimen. The influence of the geometry of the specimens of the form and orientation of the caustic was studied in relation to the orientation of the edge crack. The complex stress intensity factor K=KI-iKII was evaluated in terms of the angle phi of the angular displacement of the caustic axis. The values of the stress intensity factors KI and KII were compared with the respective theoretical values of stress intensity factors. From this comparison, correction factors are derived and nomograms given in terms of the angle omega of inclination of the crack.