Mechanical stability paradigm for prediction of rpv service life
Materials Science
2012-05-01 v1
Abstract
In the framework of the engineering version of a Local approach to fracture the criterion of a fracture limit of RPV with crack-like flaw is derived. It has been shown that the level of ductile state stability (mechanical stability) of metal ahead of a crack governs the value of critical fluence. On this basis, the new paradigm of life-time prediction using the condition of exhaustion of mechanical stability of irradiated PV metal has been proposed. The technique of an end-of-life fluence assessment is developed, and predictive capabilities of this approach are demonstrated by the example of WWER-1000 pressure vessels
Keywords
Cite
@article{arxiv.1204.6706,
title = {Mechanical stability paradigm for prediction of rpv service life},
author = {S. Kotrechko and Yu. Meshkov and I. Nekludov and V. Revka and L. Chyrko},
journal= {arXiv preprint arXiv:1204.6706},
year = {2012}
}
Comments
19 pages, 4 figures, 3 tables