Volume 2, Issue 3, August 2017, Page: 71-76
The Effect of Cladding Creep on the Initiation of GTRFW
William Richard Campbell, Engineering Research Institute, Auckland University of Technology, Auckland, New Zealand
Jerry Chen, Engineering Research Institute, Auckland University of Technology, Auckland, New Zealand
Received: Jul. 20, 2017;       Accepted: Aug. 1, 2017;       Published: Sep. 6, 2017
DOI: 10.11648/j.wjap.20170203.12      View  1498      Downloads  41
Abstract
Creep plays a critical role in the stress relaxation of a PWR fuel assembly, which causes the initiation of slip and fretting wear. In this paper, the creep down of grid and cladding is simulated using a 3D FEA model. A mechanism-based creep model is incorporated in the structural analysis. The evolution of stress as well as its effects on the slip and wear is analyzed. It is found the creep would lead to partial slip around the contact edge and eventually full slip across the entire contact interface. The contact stress and hydrostatic pressure in the water play key roles in the creep evolution.
Keywords
Wear, PWR, Creep, Zircaloy 4
To cite this article
William Richard Campbell, Jerry Chen, The Effect of Cladding Creep on the Initiation of GTRFW, World Journal of Applied Physics. Vol. 2, No. 3, 2017, pp. 71-76. doi: 10.11648/j.wjap.20170203.12
Copyright
Copyright © 2017 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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