Journal
INTERNATIONAL JOURNAL OF FRACTURE
Volume 135, Issue 1-4, Pages L33-L38Publisher
SPRINGER
DOI: 10.1007/s10704-005-4393-x
Keywords
crack; notch; strain energy; structural volume
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Dealing with sharp V-shaped notches, some recent papers have discussed the possibility of using the strain energy averaged over an ad hoc control volume to predict the static strength of material with a brittle or quasi-brittle behavior as well as the fatigue behavior of welded joints. This approach is applied here to components weakened by cracks and blunt V-shaped notches. As a result, Kitagawa and Atzori's diagrams reported in the literature to summarise fatigue limit of cracked and notched components are immediately derived, leading to a natural transition between the Linear Elastic Fracture Mechanics and the Linear Notch Mechanics.
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