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Evaluation of the Tensile Properties of Fuel Cladding at High Temperatures Using a Ring Specimen

링 시험편을 이용한 피복관의 고온 인장특성 평가

  • 배봉국 (성균관대학교 기계공학부) ;
  • 구재민 (성균관대학교 기계공학부) ;
  • 석창성 (성균관대학교 기계공학부)
  • Published : 2005.04.01

Abstract

In this study, the ring tensile test at high temperature was suggested to evaluate the hoop tensile properties of small tube such as the cladding in the nuclear reactor Using the Arsene's ring model, the ring tensile test was performed and the test data were calibrated. From the result of the ring test with strain gauge and the numerical analysis with 1/8 model, LCRR(load-displacement conversion relationship of ring specimen) was determined. We could obtain the hoop tensile properties by means of applying the LCRR to the calibrated data of the ring tensile test. A few difference was observed in view of the shape of fractured surface and the fracture mechanism between at the high temperature and at the room temperature.

Keywords

Ring Test;LCRR;Friction Coefficient;Fuel Cladding;Dynamic Strain Aging

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