레이저 계측을 이용한 곡관 감육부의 변형 해석 = Deformation Analysis of Wall Thinning Pipe by Using Laser Measurement

다국어 초록 (Multilingual Abstract)

This study performs to investigate deformation of wall thinning pipe and to find out the position of the internal thinning defect by shearography. Shearography is one of optical methods those have applied to nondestructive testing (NDT) and the strain/stress analysis. This technique has the merit of the directly measuring the first derivative of displacement, sensitivity of which can be adjusted by the handling of optical component in interferometer. In this paper, we tested carbon steel pipe locally wall thinned and loaded internal pressure and developed the nondestructive out-of-plane deformation analysis technique for internal thinning defect of elbow by shearography. From the results, it was confirmed that this technique is proper to the practical application on the pipe line system with internal defect.

목차 (Table of Contents)

• ABSTRACT
• 1. 서론
• 2. Shearography 이론
• 3. 실험 및 결과
• 4. 결론
• 참고문헌