One of the major factors that may impact long term operations is structural material degradation, Detecting materials degradation, estimating the remaining useful life (RUL) of the component, and determining approaches to mitigating the degradation are important from the perspective of long term operations. In this study, multiple nondestructive measurement and monitoring methods were evaluated for their ability to assess the material degradation state. Metrics quantifying the level of damage from these measurements were defined, and evaluated for their ability to provide estimates of remaining life of the component. An example of estimating the RUL from nondestructive measurements of material degradation condition is provided.
Revised: July 23, 2014 |
Published: December 31, 2012
Citation
Ramuhalli P., C.H. Henager, J.W. Griffin, R.M. Meyer, J.B. Coble, S.G. Pitman, and L.J. Bond. 2012.Material Aging and Degradation Detection and Remaining Life Assessment for Plant Life Management. In 3rd International Conference on NPP Life Management (PLIM) for Long Term Operations (LTO), May 14-18, 2012, Salt Lake City, Utah, Paper No. IAEA-CN-194-1P28. Vienna:International Atomic Energy Agency.PNNL-SA-87838.