ISSN: 1945-7553
CODEN: JTEVAB
Page Count: 10

Calculation of Stress Fields Near Notch Roots in Real Life Structures Subjected to In-Plane and Out-of-Plane Deformations

Harada, T
Associate Professor, Kurume National College of Technology,

Noguchi, H
Professor, Faculty of Engineering, Kyushu University,

(Received 26 February 2004; accepted 25 May 2006)

Abstract

The authors proposed a practical method for estimating stress fields near a notch in a real structure under in-plane loading in the previous paper. In this method, boundary conditions of a region near a notch are determined reasonably, using the stress field expression and stress components measured by strain gages on the boundary. Therefore, in this method, precise estimation of the stress fields can be performed in a real structure whose boundary conditions are hard to grasp. In this paper, we develop this method further so that it can be used for notches under out-of-plane loading or simultaneous in-plane and out-of-plane loading. A straight boundary near a notch and non-symmetric boundary conditions are investigated as factors lowering the calculation precision. Consequently, there is the angular limitation of a notch in application of this method. However calculation results are accurate enough for most cases.

Keywords:
experimental stress analysis, stress concentration, notch, circular hole, strain gage, real structure, displacement function, out-of-plane deformation, in-plane deformation

Paper ID: JTE100142
DOI: 10.1520/JTE100142
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