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

The Korean Society of Mechanical Engineers (대한기계학회)
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An Evaluation on the Effect of Reversed Plastic Zone on the Fatigue Crack Opening Behavior under 2-D Plane Stress

2차원 평면응력 상태에서 되풀이 소성역이 피로균열 열림 현상에 미치는 영향에 관한 연구

  • 최현창 (동명정보대학교 메카트로닉스공학과)
  • Published : 2005.08.01
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Abstract

The relationship between fatigue crack opening behavior and the reversed plastic zone sizes is studied. An elastic-plastic finite element analysis (FEA) is performed to examine the opening behavior of fatigue crack, where the contact elements are used in the mesh of the track tip area. The smaller element size than reversed plastic zone size is used fer evaluating the distribution of reversed plastic zone. In the author's previous results the FEA could predict the crack opening level, which crack tip elements were in proportion to the theoretical reversed plastic zone size. It is found that the calculated reversed plastic zone size is related to the theoretical reversed plastic zone size and crack opening level. The calculated reversed plastic zone sizes are almost equal to the reversed plastic zone considering crack opening level obtained by experimental results. It can be possible to predict the crack opening level from the reversed plastic zone size calculated by finite element method. We find that the experimental crack opening levels correspond with the opening values of contact nodes on the calculated reversed plastic zone of finite element simulation.

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References

  1. Solanki, K., Daniewicz, S .R. and Newman Jr., J.C., 2004, 'Finite Element Analysis of Plasticity-induced Fatigue Crack Closure: an Overview,' Engineering Fracture Mechanics, Vol. 71, pp. 149-171 https://doi.org/10.1016/S0013-7944(03)00099-7
  2. Choi, H.C. and Song, J.H., 'Finite Element Analysis of Closure Behaviour of Fatigue Cracks in Residual Stress Fields,' Fatigue Fract. Engng Mater. Struct., Vol.18(1), 1995, pp. 105-117 https://doi.org/10.1111/j.1460-2695.1995.tb00145.x
  3. Choi, H. C. 1994, 'Finite Element Analysis of Closure Behaviour of Fatigue Cracks in Residual Stress Fields,' Ph. D. dissertation, Korea Advanced Institute of Science and Technology
  4. Park, S. J., Earmme, Y. Y. and Song, J. H., 1997, 'Determination of the Most Appropriate Mesh Size for a 2-d Finite Element Analysis of Fatigue Crack Closure Behaviour,' Fatigue Fract. Engng. Mater. Struct., Vol. 20(4), pp. 533 -545 https://doi.org/10.1111/j.1460-2695.1997.tb00285.x
  5. Choi, H. C., 2000, 'A Study on the Determination of Closing Level for Finite Element Analysis of Fatigue Crack Closure,' KSME International Journal, Vol. 14(4), pp. 401-407
  6. Choi, H.C., 2003, 'Finite Element Analysis for Fatigue Crack Closure Behavior Using Reversed Plastic Zone Size,' Trans. of the KSME(A), Vol. 27, No. 10, pp. 1703-1711 https://doi.org/10.3795/KSME-A.2003.27.10.1703
  7. Choi, H. C., 2004, 'Numerical Analysis for Prediction of Fatigue Crack Opening Level,' KSME International Journal, Vol. 18(11), pp. 1991-1997
  8. Kurihara, M., Katoh, A. and Kawahara, M., 1987, 'Effective of Stress Ratio and Step Loading on Fatigue Crack Propagation Rate,' Current Research on Fatigue, Tanaka, T., Jono, M. and Komai, K., Eds., Elsevier Applied Science, pp. 247-265
  9. McClung, R. C., 1991, 'Crack Closure and Plastic Zone Sizes in Fatigue,' Fatigue Fract. Engng Mater. Struct., 14(4), pp. 455-468 https://doi.org/10.1111/j.1460-2695.1991.tb00674.x
  10. McClung, R. C. and Sehitoglu, H., 1989, 'On the Finite Element Analysis of Fatigue Crack Closure-L Basic Modeling Issues,' Engng Fract. Mech., 33, pp. 237 - 252 https://doi.org/10.1016/0013-7944(89)90027-1
  11. McClung, R. C. and Sehitoglu, H., 1989, 'On the Finite Element Analysis of Fatigue Crack Closure- 2. Numerical Results,' Engng Fract. Mech., 33, pp. 253 - 272 https://doi.org/10.1016/0013-7944(89)90028-3
  12. Oliva, V., Cseplo, L., Materna, A. and Blahova, L., 1997, 'FEM Simulation of Fatigue Crack Growth,' Materials Science and Engineering, A234-236, pp. 517-520 https://doi.org/10.1016/S0921-5093(97)00285-2
  13. Ohji, K., Ogura, K. and Ohkubo, v., 1974, 'On the Closure of Fatigue Cracks Under Cyclic Tensile Loading,' Int. J. Fract., 10, pp. 123-134 https://doi.org/10.1007/BF00955089
  14. Newman. Jr., J. C., 1976, 'A Finite-element Analysis of Fatigue Crack Closure,' Mechanics of Crack Growth, ASTM STP 590, pp. 280-301
  15. Newman, Jr., J. C., 1977, 'Finite-element Analysis of Crack Growth under Monotonic and Cyclic Loading,' Cyclic Stress-Strain and Plastic Deformation Aspects of Fatigue Crack Growth, ASTM STP 637, pp. 56-80

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