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An Experimental Study on the Fatigue Behavior and Stress Interaction of Arbitrarily Located Defects (I)

불규칙하게 분포된 미소결함 사이의 응력간섭 및 피로균열 거동에 대한 실험적 연구 (1)

Song, Sam-Hong;Bae, Jun-Su;Choe, Byeong-Ho
송삼홍;배준수;최병호

  • Published : 2000.05.01

Abstract

In this study, fatigue crack behavior between arbitrarily located defects was investigated by experiment. Especially, stress interaction between micro hole defects and fatigue cracking, and fatigue crack initiation life following the variation of location of micro hole defects were considered. In addition, crack initiation position by micro hole stress interaction and the relationship between stress concentration factor and fatigue initiation life are studied in detail.

Keywords

Fatigue Crack Propagation;Fatigue Crack Initiation;Fatigue Notch Factor;Stress Interaction Field;Fatigue Crack Initation Life

References

  1. Manson, S. S., 1953, 'Behavior of Materials under Conditions of Thermal Stress,' Heat Transfer Symposium, Univ. of Michigan, Engineering Research Institute, pp. 9-75
  2. Braglia, B. L., Hertzberg, R. W., 1979, 'Crack Initiation in a High Strength Low-Alloy steel,' Fracture Mechanics, ASTM STP 677
  3. Shin, C. S., Man, K. C, 1994, 'A Practical Method to Estimate the stress Concentration of Notches,' Fatigue, Vol.16, June, pp. 242-256 https://doi.org/10.1016/0142-1123(94)90338-7
  4. Peterson, R. E., 1973, Stress Concentration Factors, John wiley and Sons, p. 245
  5. Murakami, Y. and Nemat-Nasser, S., 1982, 'Interaction Dissimilar Semi-Elliptical Surface Flaws under Tension and Bending,' Engineering Fracture Mechanics, Vol. 16, pp. 373-386 https://doi.org/10.1016/0013-7944(82)90115-1
  6. Miyoshi, T. and Tanabe, O., 1985, 'Stress Intensity Factors for Surface Cracks with Arbitrary Shapes in Plates and Shells,' Fracture Mechanics 16th Symposium, ASTM STP868, pp. 512-534 https://doi.org/10.1520/STP868-EB
  7. Chang, R., 1982, 'On Crack-Crack Interaction and Coalescence in Fatigue,' Engineering Fracture Mechanics, Vol. 16, No. 5, pp. 683-693
  8. 송삼홍, 오환섭, 1987, '미소원공주위의 피로 균열발생 전파거동에 관한 연구,' 한국해양공학회지, 제1권 제2호, pp. 250-258
  9. Trantina, G. C. and Barishpolsky, M., 1984, 'Elastic-Plastic Analysis of Small Defect Void and Inclusion,' Engineering Fracture Mechanics, Vol. 20, No. 1, pp. 1-10 https://doi.org/10.1016/0013-7944(84)90110-3
  10. Song, S. H. and Bae, J. S., 1998, 'Fatigue Crack Initiation and Propagation from Hole,' Experimental Mechanics, pp. 161-166 https://doi.org/10.1007/BF02325738
  11. 송삼홍, 김진봉, 1994, '유한요소해석에 의한 미소원공주위의 응력해석,' 대한기계학회 논문 집, 제18권 제3호, pp. 555-564