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T-stress determination using thermoelastic stress analysis

By M. Zanganeh, R.A. Tomlinson and J.R. Yates


T-stress and mixed-mode stress intensity factors have been determined experimentally using thermoelastic stress analysis and using a finite element method. Pure mode I, strong mixed-mode I and II, and interacting cracks have been used as the case studies. A new technique has been proposed to identify the crack tip from thermoelastic images. It has also been shown that using three terms of Williams's stress field formulation to determine the T-stress, yields a more accurate solution than using only the first two terms of the expansion

Publisher: Professional Engineering Publishing
Year: 2008
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