균열 성장 지연현상에 대한 연구 = Study for Retardation Phenomenon

다국어 초록 (Multilingual Abstract)

In this study, in order to analyze the crack retardation behaviors, effective plastic zone concept was proposed. By use of the proposed concept, crack retardation period, compressive residual stress and variation of effective plastic zone shapes were obtained. The results were compared with those of Willenborg model. Retardation period, compressive residual stress and effective plastic zone size obtained by using effective plastic zone concept were larger then the results obtained by using Willenborg analysis. Effective stress intensity factors obtained by using effective plastic zone concept were smaller then the results obtained by using Willenborg analysis.

목차 (Table of Contents)

• ABSTRACT
• 1. 서론
• 2. Willenborg 모델에 대한 제고 및유효 소성역 개념 제안
• 3. 해석결과 및 고찰
• 4. 결론
• REFERENCES

참고문헌 (Reference)

1 강용구, "과대 하중작용 시 균열성장 지연 거동에 대한 파괴역학적 정리" 한국기계가공학회 11 (11): 13-20, 2012

2 W. Elber, "The Significance of Fatigue Crack Closure" 486 : 230-, 1971

3 O. E Wheeler, "Spectrum Loading and Crack Growth" 94 : 181-, 1972

4 Ralph I. Stephens, "Metal Fatigue in Engineering" Prentice Hall, Inc 59-88, 2001

5 Ralph I. Stephens, "Metal Fatigue in Engineering" Prentice Hall, Inc 120-175, 2001

6 Ralph I. Stephens, "Metal Fatigue in Engineering" Prentice Hall, Inc 93-119, 2001

7 Ralph I. Stephens, "Metal Fatigue in Engineering" Prentice Hall, Inc 24-25, 2001

8 J. A. Bannantine, "Fundamentals of Metal Fatigue Analysis" Prentice Hall 197-201, 1990

9 J. M Barsom, "Fatigue Crack Growth Under Variable-Amplitude Loading in Various Bridge Steels" 595 : 217-, 1972

10 P. C. Paris, "A Critical analysis of Crack Propagation Laws" 85 (85): 528-534, 1963

11 J. Willenborg, "A Crack Growth Retardation Model Using an Effective Stress Concept"