Shearing effects on a shaft with circular surface crack under rotary bending
✍ Scribed by Ching-Hwei Chue; Ming-Long Wu; Chih-Hsiang Chang
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 606 KB
- Volume
- 45
- Category
- Article
- ISSN
- 0013-7944
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✦ Synopsis
The shearing effects on the failure behavior of a rotating shaft with a circular surface crack subjected to transverse concentrated load and torsion are investigated by employing finite eiement method combined with strain energy density theory. Results of stress intensity factors and minimum strain energy density factor at an arbitrary point on the crack front are obtained for three different crack sizes. The plane strain condition has been assumed in order that the onset and direction of the mixed mode crack propagation can be determined. It is shown that the crack will distort and extend preferentially in a direction opposite to that of rotation and swing a small angle depending on the shearing stress effects.