Member, American Ceramic Society.
Lifetime Prediction of Internally Pressurized Siliconized SiC Tubes Subjected to Creep Rupture Loading
Article first published online: 11 JUL 2005
Journal of the American Ceramic Society
Volume 75, Issue 2, pages 424–431, February 1992
How to Cite
Jadaan, O. M., Shelleman, D. L. and Tressler, R. E. (1992), Lifetime Prediction of Internally Pressurized Siliconized SiC Tubes Subjected to Creep Rupture Loading. Journal of the American Ceramic Society, 75: 424–431. doi: 10.1111/j.1151-2916.1992.tb08197.x
R. W. Rice—contributing editor
Presented at the 93rd Annual Meeting of the American Ceramic Society, Cincinnati, OH, May 1, 1991 (Paper No. 9-JX-91). Supported by the Gas Research Institute under Grant No. 5084–238–1302.
- Issue published online: 11 JUL 2005
- Article first published online: 11 JUL 2005
- Manuscript No. 196526. Received July 23, 1991; approved November 1, 1991.
- silicon carbide;
The main objective of this research was to develop an experimental and analytical methodology to predict the lifetime of internally pressurized SiC tubes from the lifetimes of simple specimens subjected to similar delayed failure modes. Finite element analysis was used to determine the strain rate distribution in a thick-wall tube subjected to sustained internal pressure. This analysis was used along with the Monkman-Grant creep rupture criterion (obtained from creep testing of tensile specimens) to predict the lifetime of SCRB210 tubes. Results showed a large difference between experimental and predicted lifetimes. This difference was due to the existence of severe defects in the SCRB210 tubes which failed at low stresses. These tubes failed in crack growth mode rather than creep mode. This result leads to the conclusion that creep rupture criteria obtained from testing simple specimens cannot be projected to predict the lifetimes of large and more complex components.