Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Analysis of the Residual Stress due to Cold Expansion and Stress Intensity Factor in CT Specimen Using Finite Element Method

유한요소법을 이용한 CT 시편의 홀확장 잔류응력 및 응력확대계수 해석

  • Jang, Jae-Soon (Dept.of Mechanical Engineering, Graduate School of Sungkyunkwan University) ;
  • Yang, Won-Ho (Dept.of Mechanical Engineering, Sungkyunkwan University) ;
  • Kim, Cheol (Dept.of Mechanical Design, Graduate School of Sungkyunkwan University) ;
  • Ko, Myung-Hoon ;
  • Cho, Myoung-Rae (Dept.of Computer Applied Mechanical, Induk Institute of Technology)
  • 장재순 (성균관대학교 대학원 기계공학과) ;
  • 양원호 (성균관대학교 기계공학부) ;
  • 김철 (성균관대학교 대학원 기계설계학과) ;
  • 고명훈 (대림대학 산업기술경영과) ;
  • 조명래 (인덕대학 컴퓨터응용기계 계열)
  • Published : 2002.05.01
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Abstract

Cold expansion method is retarded of crack initiation due to the compressive residual stress developed on the hole surface. Previous research has just been study about residual stress distribution in the hole surrounding. But, The purpose of this study was to improve the understanding of the residual stress effect in hole surrounding as crack growth from another hole. In this paper, it is shown that residual stress is redistributed due to the application of cold expansion process for CT specimen using finite element method. It is further shown that tensile stress increases in proportion to cold expansion ratio in the vicinity of crack. It is thought that stress intensity factor increases with cold expansion ratio.

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References

  1. Poussard, C. G. C, Pavier M. J. and Smith D. J., 1994, 'Prediction of Residual Stresses in Cold Worked Fastener Holes using the Finite Element Method,' Engineering systems design and analysis, Vol. 8, part A, pp. 47-53
  2. Pavier. M. J, 1997, 'A Finite Element Simulation of the Cold Working Process for Fastener Holes,' Journal of Strain Analysis, Vol. 32, No. A, pp. 287-300 https://doi.org/10.1243/0309324971513418
  3. 송정훈, 유진상, 임원균, 1998, '홀확장 및 링압인된 홀의 피로균열성장에 대한 실험적연구,' 한국항공우주학회, Vol. 26, pp. 72-78
  4. Nadai, A., 1943, 'Theory of the Expanding of Boiler and Condenser Tube Joints Through Rolling,' Trans. ASTM, Vol. 65, pp. 865-880
  5. Meguid, S. A, 1999, 'Elasto-plastic Finite Element Analysis of the Cold Expansion of Adjacent Fastener Holes,' Journal of Materials Processing Technology, Vol. 92-93, pp. 424-428 https://doi.org/10.1016/S0924-0136(99)00154-5
  6. Papanikos, P. and Meguid, S. A., 1997, 'Three-Dimensional Finite Element Analysis of Cold Expansion of Adjacent Holes,' Int. J Mech. Sci. Vol. 40, No. 10, pp. 1019-1028 https://doi.org/10.1016/S0020-7403(98)00007-1
  7. 김 철, 양원호, 고명훈, 허성필, 현철승, 2000, '홀확장 잔류응력 예측을 위한 유한요소해석,' 대한기계학회 추계학술대회논문집 A, pp. 470-474
  8. Ozdemir, A. T. and Dwards, L. E., 1996, 'Measurement of the Three-Dimensional Residual Stress Distribution Around Spilt-Sleeve Cold-Expansion Holes,' Journal of Strain Analysis, Vol. 31, No. 6, pp. 413-421 https://doi.org/10.1243/03093247V316413
  9. Ozdemir, A. T. and Dwards, L. E., 1997, 'Relaxation of Residual Stresses at Cold-Worked Fastener Holes due to Fatigue Loading,' Fatigue Fract. Engng Mater. Struct. Vol. 20, No. 10, pp. 1443-1451 https://doi.org/10.1111/j.1460-2695.1997.tb01501.x
  10. 'Standard Test Method for Measurement of Fatigue Crack Growth Rates,' 1993, ASTM E 647-93