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The application of fracture mechanics to surface cracks in shafts

✍ Scribed by Torben Lorentzen; Niels E. Kjaer; Torben K. Henriksen

Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
738 KB
Volume
23
Category
Article
ISSN
0013-7944

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✦ Synopsis

A theoretical method was developed for calculating the stress intensity factor (K) for semielliptical surface cracks in shafts subjected to a constant moment load. A number of tests using 2and 3-dimensional photoelasticity showed good agreement with the theoretical model. The calculated K was then used in computer predictions of crack propagation characteristics which were subsequently tested using high strength steel shafts. The theoretical model is useful for predicting critical crack depths and lifetimes for the particular geometry, crack shape and load configuration investigated.

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