The Paton Welding Journal, 2000, №09

2000 №09 (08)

2000 №09 (10)

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The Paton Welding Journal, 2000, #9, 54-62 pages

Assessment of residual life of welds in pipings of the first loop of Nuclear Power Stations damaged by intercrystalline corrosion

A.Ya. Krasovsky, I.V. Orynyak

Institute for Strength Problems, N.ASU, Kyiv, Ukraine

Abstract
Considered are the methodological principles of comprehensive estimation of strength and residual life of spatial piping systems containing cracks. The method suggested consists of such components as global stressed-strained state of a piping allowing for all affecting force factors, allowance for residual welding stresses, calculation of stress intensity factors, prediction of stable forms of development of fatigue cracks and intercrystalline corrosion, estimation of actual residual life of a piping containing defects and prediction of conditions causing leak to fracture.
Keywords: piping, crack, stress, residual life, leak to fracture

References

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Suggested Citation

A.Ya. Krasovsky, I.V. Orynyak (2000) Assessment of residual life of welds in pipings of the first loop of Nuclear Power Stations damaged by intercrystalline corrosion. The Paton Welding J., 09, 54-62.

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