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Optical Engineering

Optical Analysis Of HRR Field
Author(s): F. P. Chiang; T. V. Hareesh; B. C. Liu; S. Li
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Paper Abstract

This paper examines the experimental u1, u2, and u3 displacements obtained in the vicinity of a plastically deformed crack tip in different work hardening materials in the background of the Hutchinson-Rice-Rosengren (HRR) field equations. It is shown that the two-dimensional plane stress solution breaks down in the immediate vicinity of the crack tip because of the three-dimensional nature of the deformations due to finite plate thickness. This "inner limit" seems to vary from 0.75 to 1.5 times the thickness with directional dependence. Some light is also shed on the "outer limit" of HRR equations, beyond which the theory ceases to be valid under the influence of the surrounding elastic field or the physical boundary of the plate or a combination of both.

Paper Details

Date Published: 1 August 1988
PDF: 5 pages
Opt. Eng. 27(8) 278625 doi: 10.1117/12.7976733
Published in: Optical Engineering Volume 27, Issue 8
Show Author Affiliations
F. P. Chiang, State University of New York (United States)
T. V. Hareesh, State University of New York (United States)
B. C. Liu, State University of New York (United States)
S. Li, State University of New York (United States)

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