The analysis of thermoelastic isopachic data from crack tip stress fields |
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| Authors: | Dulieu-Barton,Fulton,& Stanley |
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| Affiliation: | University of Southampton, School of Engineering Science, Highfield, Southampton SO17 1BJ, UK,;University of Liverpool, Department of Engineering, Liverpool L69 3GH, UK,;University of Manchester, School of Engineering, Simon Building, Oxford Road, Manchester M13 9PL, UK |
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| Abstract: | A computer program—FACTUS (fracture analysis of crack tips using SPATE)—has been developed for the efficient analysis of thermoelastic data obtained from around a crack tip. The program is based on earlier work for the determination of stress intensity factors (SIFs), and also includes a novel solution procedure for the derivation of the non-singular stress term σ 0 x . The program has been used in the analysis of a series of large plate specimens with central or edge slots/cracks. The derived SIFs are compared with independent values. Issues, e.g. crack closure and the extent and effect of the plastic zone, are discussed. |
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| Keywords: | thermoelastic stress analysis (TSA) SPATE stress intensity factors (SIFs) crack tip parameters FACTUS |
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