Abstract
Boilers and pressure vessels are heavily used in chemical industrial plant. The equipments are investigated the presence of damages periodically. The most damage types in the equipments are the wall thinning due to the Flow-Accelerated-Corrosion (FAC) or Corrosion-Under-Insulation (CUI). If the damaged equipments were found, it must be repaired or replaced as needed. However, the optimization in the replacement time of the damaged equipments by evaluating the strength of wall thinning has been expected from chemical industrial field. In this study, the simplified FE analysis method is proposed in order to evaluate the burst pressure in the piping including the various types of wall thinning which obtained from past testing. The difference between the testing results and the analysis results are within 9% regardless of wall thinning type and size.
