Combining experimental and numerical analysis to estimate stress fields along the surface crack front

摘要

Combining experimental and computational method for determination of the singular and the nonsingularstress terms along the front of the 3D surface crack is proposed. Evaluation of the terms is based oncomprehensive comparison between deformation responses (for measurement points on the surface) obtainedexperimentally and from numerical solutions of the corresponding boundary problem of solid mechanics. Theproposed approach allows carrying out an adequate and a comprehensive assessment of stress fields in thevicinity of the surface crack front.