DOI QR코드

DOI QR Code

Finite Element Analysis of Re-Cold Expansion in Order to Improve the Fatigue Life of Fastener Hole that has been Cold Expanded Before

홀확장법을 적용한 체결홀의 피로수명 개선을 위한 재 홀확장 효과에 대한 유한요소 해석

  • 장재순 (성균관대학교 대학원 기계공학과) ;
  • 양원호 (성균관대학교 기계공학과) ;
  • 조명래 (인덕대학 컴퓨터응용설계)
  • Published : 2006.09.01

Abstract

Cold expansion of fastener holes has been successfully used for many years to impart beneficial compressive residual stresses. Beneficial compressive residual stress of fastener hole that has been cold expanded before is reduced by using of materials for a long time. As a result, fatigue life of material is reduced. So, compressive residual stresses of material have to regenerate by re-cold expansion method. In this paper, it was carried out a finite element analysis about variation of residual stress due to tensile stress and residual stress distribution that was regenerated by re-cold expansion method in the fastener hole. Here, a diversity tensile stress was used. Also, it was performed a finite element analysis according to cold expansion rate of re cold expansion in order to obtain a beneficial compressive residual stress.

Keywords

Re Cold Expansion;Fatigue Life;Finite Element Analysis;Residual Stress

References

  1. Ball, D. L. and Lowry, D. R., 1998, 'Experimental Investigation on the Effectiveness of Cold Expansion of Fastener Holes,' Fatigue Fract Eng Mater Struct, Vol. 21, pp. 17-34 https://doi.org/10.1046/j.1460-2695.1998.00430.x
  2. Zhang, X. and Wang, Z., 2003, 'Fatigue Life Improvement in Fatigue-aged Fastener Holes Using the Cold Expansion Technique,' Inter. Jour. of Fatigue, Vol. 25,pp. 1249-1257 https://doi.org/10.1016/S0142-1123(03)00152-X
  3. Lim, W. K., Yoo, J. S. and Choi S. Y., 1998, 'The Effects of Concurrent Cold-Expansion and Ring-Indentation of the Growth of Fatigue Cracks Emanating from Circular Holes,' Eng. Fracture Mechanics, Vol. 59, No.5, pp. 643-653 https://doi.org/10.1016/S0013-7944(97)00125-2
  4. Nadai A., 1943, 'Theory of the Expanding of Boiler and Condenser Tube joints Through Rolling,' Trans. ASTM, Vol. 65, pp. 865-880
  5. Kang, J. D., Johnson, W. S. and Clark, D. A., 2002, ' Three Dimensional Finite Element Analysis of the Fastener Holes in Two Alumium Alloys,' jour. of Eng. Material and Tech., Vol. 124, pp. 140-145 https://doi.org/10.1115/1.1448922
  6. Jang, J. S., Yang, W. H., Kim C. and Cho, M. R., 2002, 'Analysis of the Residual Stress due to Cold Expansion and Stress Intensity Factor in CT Specimen Using Finite Element Method,' J. Korean Soc. Precision Eng (A), Vol. 26, pp. 890-895
  7. Pavier, MJ., Poussard, C. G. C. and Smith D. J., 1997, 'A Finite Element Simulation of the Cold Working Process for Fastener Holes,' J. Strain Anal., Vol. 32, pp. 287-300 https://doi.org/10.1243/0309324971513418
  8. Papanikos, P. and Mequid, S. A., 1999, 'Elasto-Plastic Finite Element Analysis of the Cold Expansion of Adjacent Fastener Holes,' J. Mater. Process. Technol. Vol. 89-90, pp. 424-428 https://doi.org/10.1016/S0924-0136(99)00154-5
  9. Kim, C, Kim, D., J., Seok, C. S. and Yang, Y. H., 2004, 'Finite Element Analysis of the Residual Stress by Cold Expansion Method under the Influence of Adjacent Holes,' J. Mater. Process. Technol., Vol.153-154, pp. 986-991 https://doi.org/10.1016/j.jmatprotec.2004.04.271
  10. Kim, C., 2002, 'Analysis of Residual Stresses Induced by Cold Expansion Using Finite Element Method,' J Korean society for aeronautical & space sciences, Vol. 30, No .2, pp. 46-51 https://doi.org/10.5139/JKSAS.2002.30.8.046
  11. Ball, D.L., 1995, 'Elastic-Plastic Stress Analysis of Cold Expanded Fastener Holes,' Fatigue Fract. Eng. Mater. Struct., Vol. 18, pp. 47-63 https://doi.org/10.1111/j.1460-2695.1995.tb00141.x
  12. Bernard, M., Bui-Quoc, T. and Burlat, M., 1995, 'Effect of Re-Cold Working on Fatigue Life Enhancement of a Fastener Hole,' Fatigue Fract. Eng. Mater. Struct., Vol. 18, pp.765-775
  13. ABAQUS User's Manual, Ver. 6.4, HKS Inc., USA
  14. ASTM E915-96(2002) Standard Test Method for Verifying the Alignment of X-Ray Diffraction Instrumentation for Residual Stress Measurement