ADVANCED STRUCTURAL DESIGN OF HIGH TEMPERATURE COMPONENTS OF FBR

摘要

Structural mechanics works carried out in the domain of high temperature design for the PFBR are reviewed. The latest ides of RCC-MR (1993) which is the recommended code for PFBR are presented with a particular emphasis on high cycle fatigue damage under thermal striping and vibration including the interaction of HCF and LCF, weld design rules for 9Cr-1Mo, creep-fatigue design of components which crack like defects, assessment of ratchetting. In addition, some important results of analyses carried out for PFBR in compliance with the RCC-MR (1993) for establishing the thermal striping limits UNI thermal ratchetting are presented. Finally a list of on-going R&D activities towards validation of structural design as well as further material data required to be generated for the high temperature design are highlighted