1976 Volume 19 Issue 138 Pages 1409-1419
The analytical and experimental results of thermal fatigue of a circular disk of structural carbon steel are presented. The periphery of the disk is cycled between two programmed temperature levels, while a water cooled sink at the inner radius is kept at lower temperature level. (1) Unsteady elasto-plastic thermal stress and the strain in the disk specimen calculated from the measurement of radial temperature distribution on the disk are in good agreement with the experimental results, in both the measurement of the diametral displacement and the X-ray residual stress measurement. (2) Number of cycles to initiation of thermal crack in the disk is predicted from the uniaxial thermal fatigue test data on the common basis of the equivalent total strain range of Mises' criterion. The propagation rate of thermal crack is also predicted on the basis of product of the rate (dl/dN) with the number of cycles N at a prescribed crack length l.
JSME International Journal Series C Mechanical Systems, Machine Elements and Manufacturing
JSME International Journal Series B Fluids and Thermal Engineering
JSME International Journal Series A Solid Mechanics and Material Engineering
JSME international journal. Ser. C, Dynamics, control, robotics, design and manufacturing
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JSME international journal. Ser. A, Mechanics and material engineering
JSME international journal. Ser. 1, Solid mechanics, strength of materials