A study on the Measurement result comparison of Internal Defects of Pressure Vessel by using ESPI Methods and FEM Methods

ESPI를 이용한 압력용기 내부 결함 측정 결과와 유한 요소 법을 이용한 결과 비교에 관한 연구

The pipe which it uses from the nuclear power plant or factory by a long period use and a corrosive action the inside defect occurs on the inside. abstract here. The ESPI method is in order to investigate the laser light in the measurement object it will be able to measure the wide territory whole in once, does not receive an effect in direction of defect not to be. has the strong point it will be able to measure a change of place arrowhead real-time defect. It measured a inside defect of pressure vessel by using ESPI and FEM. It compared a each method result.