The Stress Intensity Factor of convex embedded polygonal cracks

Abstract

In the present work, a simple formula for the evaluation of the stress intensity factor (SIF) of convex embedded polygonal cracks has been proposed. This formula is structured as a correction factor of the Oore-Burns’ equation and is based on accurate three-dimensional FE analysis. Furthermore, a precise formula for a regular polygonal crack has been given.

Stress intensity factor: new and improved estimates

“…In this paper, we give estimates from above and from below of the SIF in the case of an open bounded and convex set in the plane ⊆ R 2 ; such estimates are obtained with techniques different from those already used in [7]. For recent results in this field we refer the interested reader to the paper [6] and the citations contained therein.…”