Elastic notch stress intensity factors for sharply V-notched rounded bars under torsion
โ Scribed by M. Zappalorto; P. Lazzarin; F. Berto
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 712 KB
- Volume
- 76
- Category
- Article
- ISSN
- 0013-7944
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โฆ Synopsis
The paper deals with the determination of analytical expressions for the mode III notch stress intensity factors for circumferentially-sharply-notched rounded bars under torsion loading, starting from the theoretical stress concentration factors of the corresponding notch problem.
An exact, closed-form solution for the NSIFs is obtained for deep notches; subsequently the solution is extended also to finite notched components taking advantage of a shape function determined by a numerical best fitting procedure.
๐ SIMILAR VOLUMES
A semicmpirical formula for the stress intensity factors for short cracks is presented. Once the crack has reached a critical depth, designated as aa, the notch has no effect on the crack tip stress field and the stress intensity factor for a smooth bar with crack depth (n + 4 is applicable, where d
The calculation of stress intensity factor for a sharp V-notch is done from the limiting value of stress concentration factors as the root radius of the same V-notch rounded at the tip approaches zero. The stress analysis is carried out using the complex variable formulation of Muskhelishvili and th
A set of path independent integrals is constructed for the calculation of the generalized stress intensity factors occurring in elastic plates having sharp re-entrant corners or notches with stress-free faces and subjected to Mode I, I1 or 111 type loading. The Mode I integral is then demonstrated t