Graduate Program in Mechanical Engineering.Anlaş, Günay.Işık, A. Cenk.2023-03-162023-03-162006.ME 2006 I85https://digitalarchive.library.bogazici.edu.tr/handle/123456789/14900The purpose of this study is to determine crack initiation angles, the effect of critical radius and T-stress on crack initiation angles using experimental and analytical techniques. The results obtained using the maximum tangential stress (MTS-criterion), the generalized maximum tangential stress (GMTS-criterion), the minimum strain energy density (S-criterion) and the maximum triaxial stress (M-criterion) criteria are compared to experimental results of PMMA and PS specimens with an inclined center crack, under mixed-mode loading.30cm.Polymethylmethacrylate.Materials -- Cracking.Fracture mechanics.xvii, 112 leaves;