Vindex©: Ranking Procedure for High-Energy Piping Girth Welds

Limited inspection budgets put utilities in the difficult position of determining which high-energy piping and header girth welds to inspect. This new SI Webinar describes Vindex© — Vulnerability Index — a semi-quantitative damage-ranking methodology that takes both inspection history and component characteristics into account. SI-developed Vindex provides structured risk-ranking for welds within a single piping system or across several systems. The damage consequences considered in SI's Vindex methodology consist of safety and/or lost power generation.

Presented on: July 16, 2008

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Scott Rau, PE has a MS in Structural Engineering from the University of California, Los Angeles. He has extensive experience in stress analysis, including finite element analysis and modeling of structures and components with linear or non-linear behavior; dynamic system response and time history analysis; and transient thermal elastic-plastic analysis. Rau has performed remaining life evaluations of over 50 high-energy piping systems, and of similar numbers of steam turbine and generator rotors.