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Notes on the paths and stability of cracks

✍ Scribed by B. Cotterell

Publisher
Springer Netherlands
Year
1966
Tongue
English
Weight
386 KB
Volume
2
Category
Article
ISSN
1573-2673

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✦ Synopsis

The stress distribution at the tip of a crack can be e~;panded as a power series. The first term, usually called the stress intensity factor, determines the initiation of fracture in a brittle material. In this paper it is shown that the second, third and fourth terms have the following effects:

(a)'the second term controls the stability of the crack's direction, (b) the third term controls the stability of the crack's propagation, (c) ~he fourth term determines whether the maximum shear stress on the prolongation of the crack increases or decreases with distance from the crack tip.

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