| 2000 №09 (02) | 2000 №09 (04) |
The Paton Welding Journal, 2000, #9, 13-18 pages
Assessment of the strength and residual life of pipelines with erosion-corrosion damage
E.F. Garf, M.A. Netrebsky
E.O. Paton Electric Welding Institute of the NASU 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.Abstract
The urgency of the considered problem for nuclear and thermal power generation industry, is noted. It is shown that the codes now in force permit the pipeline wall thinning by 15 % of the design thickness, which, in a number of cases leads to a significant lowering of the structure reliability and can cause fracture. Introduction of a restriction not only on the wall thinning values, but also on the main dimensions of the thinning zone, is substantiated.
Keywords: nuclear and thermal pourer stations, pipelines, erosion concision damage, strength, residua! life, residual и all thickness, length of thinning zone, thinning depth
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