WIT Press


Convenient Stress Concentration Formula Useful For Any Shape Of Notch In A Round Test Specimen

Price

Free (open access)

Paper DOI

10.2495/FR980301

Volume

19

Pages

10

Published

1998

Size

787 kb

Author(s)

N. Noda, Y. Takase & H. Nisitani

Abstract

In this work stress concentration factors of a round bar with a circular-arc or V-shaped notch K^ are considered on the basis of exact solutions for special cases and accurate numerical results. Then, accurate K, formula useful for any shape of the notch is proposed. The conclusions can be summarized as follows. (1) For the limiting cases of deep and shallow notches, the body force method is used to calculate the SCFs. Then, the formulas are obtained as K^ and K^. (2) On the one hand, upon comparison of K< and K^, it is found that K^ is nearly equal to K^ if the notch is deep or blunt. (3) On the other hand, if the notch is sharp or sha

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