Study on Stress Concentration Factor of Fillet in Stepped Round and Flat Bars under Tension and Bending.

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Bibliographic Information

Other Title
  • フィレット部を有する段付丸棒および段付平板の応力集中についての考察
  • フィレットブ オ ユウスル ダンツキ マルボウ オヨビ ダンツキ ヘイバン ノ
Published
1996
Resource Type
journal article
DOI
  • 10.1299/kikaia.62.787
Publisher
The Japan Society of Mechanical Engineers

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Description

In this paper the stress concentration problems of fillet in round and flat bars under tension and bending are considered. First, the body force method (BFM) is applied and the stress concentration factors (SCFs) are systematically calculated with good accuracy. Second, SCFs of fillet in a semi-infinite plate (Ktf) are presented in the form of formulae and charts on the basis of the results of the BFM. Third, using Ktf, expended Neuber's approximate formulae are proposed for fillet in a simple form which are useful for a wide range of geometries of fillet within l0% error. Next, as a result of comparison of these Neuber formulae and the results of BFM, correction factors are given in the form of formulae by applying the least squares method. Finally, it is found that the correction factors with the Neuber formulae give accurate SCFs within 1% error for a wide range of geometrical conditions.

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