크랙선단에서의 수소의 농도 분포에 대한 연구

• 영문명: The study on the distribution of hydrogen ahead of crack tip
• 발행기관: 동아대학교 해양자원연구소
• 저자명: 한정섭(Jeong Seb Han)
• 간행물 정보: 『동아대학교 해양자원연구소 연구논문집』제18권, 11~17쪽, 전체 7쪽
• 주제분류: 농수해양 > 해양학
• 파일형태: PDF
• 발행일자: 2006.02.28

영문 초록

  To modify the crack model developed by Wilkinson and Vitek, the concentration of hydrogen ahead of crack tip was calculated by numerical method. Backward Time, Centered-Time method was adopted. The concentration of hydrogen ahead of crack tip was varied with initial hydrogen concentration, the coefficient of diffusion of hydrogen and the strength of materials. The coefficient of diffusion of hydrogen has more effect than initial concentration of hydrogen on the saturation time in the elastic region. The higher the strength of materials, the greater the concentration of hydrogen.

목차

Abstract
1. 서론
2. 이론적 배경: 응력 구배 하에서 확산을 통한 크랙선단 앞에서의 수소의 농도
3. 계산 결과 및 고찰
4. 결론
5. 참고문헌