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Which is the most unfavourable crack orientation?

โœ Scribed by Solveig Melin


Book ID
104621804
Publisher
Springer Netherlands
Year
1991
Tongue
English
Weight
361 KB
Volume
51
Category
Article
ISSN
1573-2673

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โœฆ Synopsis


The most unfavourable orientation of a straight crack of given length is investigated, assuming mode I growth. It is shown that this orientation is not always the one perpendicular to the largest principal stress. If the smallest in-plane principal stress is compressive and its magnitude more than about one third of the largest (tensile) in-plane stress, then some other orientations are more unfavourable. Crack growth then takes place after kinking.


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