Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5014203 | Engineering Fracture Mechanics | 2016 | 66 Pages |
Abstract
Brittle failure of key-hole notches is investigated experimentally and theoretically under mixed mode I/II loading with negative mode I contributions. The key-hole notched Brazilian disk specimen made of the general-purpose Polystyrene is utilized for conducting the fracture experiments. To predict the experimental results, the key-hole notch maximum tangential stress and key-hole notch mean stress criteria are utilized. It is shown that both criteria could provide good predictions to the experimental results of the fracture load. Moreover, the key-hole notch mean stress criterion with the experimentally determined critical distance is shown to be the most accurate failure criterion.
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Authors
A.R. Torabi, H.R. Majidi, M.R. Ayatollahi,