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Proceedings Paper

Analysis of optical measurements of SIF and singularity order in rocket motor geometry
Author(s): Che-way Chang
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Paper Abstract

A series of frozen stress experiments were conducted on a rocket motor grain geometry containing a natural surface flaw of varying aspect ratios in order to study the stress intensity factor distribution along the flaw border and to estimate the loss of the inverse square root singularity when the crack border intersects the inner star surface at right angles. By applying a refined optical method, the photoelastic data are converted into classical stress intensity factors resulting from the three dimensional stress state existing at the inner surface to indicate the nearly uniform distribution of the stress intensity factors along the crack border.

Paper Details

Date Published: 1 December 1991
Proc. SPIE 1554, Second International Conference on Photomechanics and Speckle Metrology, (1 December 1991); doi: 10.1117/12.49545
Show Author Affiliations
Che-way Chang, Industrial Technology Research Labs. (Taiwan)

Published in SPIE Proceedings Vol. 1554:
Second International Conference on Photomechanics and Speckle Metrology
Fu-Pen Chiang; Fu-Pen Chiang, Editor(s)

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