Temperature Correction for Stress Measurement in Fast Burst Reactor

This paper briefly describes the originating mechanism for stress in fast burst reactor under pulsed operation.The formula,which transforms strain into stress,has been deduced based on a spherical shell model and according to this,the model of temperature correction for measured strain is put forward.The results of validation experiments on CFBR-II indicate that the requirements on instantaneous tempera-ture-rise measurement and synchronization can be avoided effectively by introducing the temperature correc-tion factor,and that the results of stress from measurement and calculation agrees well within about 25% er-ror range.