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

The Korean Society of Mechanical Engineers (대한기계학회)
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가중함수법에 의한 볼트 체결부 균열의 임계 경사각 결정에 관한 연구

  • Published : 2000.09.01
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Abstract

Mechanical joints such as bolted or riveted joints are widely used in mechanical components. The reliable determination of the stress intensity factors for cracks in bolted joints is needed to evaluate the safety and fatigue life of them. The weight function method is an efficient technique to calculate the stress intensity factors for various loading conditions because only the stress analysis of an uncracked model is required. In this paper the mixed-mode stress intensity factors for cracks in bolted joints are obtained by weight function method, in which the coefficients of weight function are determined by finite element analyses for reference loadings. Critical inclined angle that mode I stress intensity factor becomes maximum is determined and the effects of crack length and the magnitude of clearance on critical inclined angle are investigated.

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References

  1. Glinka, G. and Shen, G., 1991, 'Universal Features of Weight Functions for Cracks in Mode I,' Engng. Fracture Mechanics, Vol. 40, No. 6, pp. 1135-1146 https://doi.org/10.1016/0013-7944(91)90177-3
  2. Wu, X. R. and Carlsson, A. J., 1991, 'Weight Functions and Stress Intensity Factor Solutions,' Pergammon Press, New York
  3. Wang, Q. Z., 1998, 'Some Simple Mode-I SIF Expressions of Finite-Width Strip with a Center Crack Derived by Using an Approximate Weight Function,' Engng, Fracture Mechanics, Vol. 60, No. 1, pp. 37-45 https://doi.org/10.1016/S0013-7944(97)00181-1
  4. Fett, T. and Munx, D., 1997, 'Stress Intensity Factors and Weight Functions,' Computational Mechanics Publications, Southampton
  5. Fett, T., Munz, D., Tilscher, M., 1997, 'Weight Functions for Sub-Interface Cracks,' Int. J. of Solids and Structures, Vol. 34, No. 3, pp. 393-400 https://doi.org/10.1016/S0020-7683(96)00010-8
  6. Cartwright, D. J. and Parker, A. P., 1982, 'Opening Mode Stress Intensity Factor for Cracks in Pin-loads Joints,' Int. J. of Fracture, Vol. 18, No. 1, pp. 65-78 https://doi.org/10.1007/BF00034829
  7. Chiang, Y.J. and Rowlands, R.E., 1991, 'Finite Element Analysis of Mixed-Mode Fracture of Bolted Composite Joints,' J.of Composite Technology and Research, Vol. 13, No. 4, pp. 227-235 https://doi.org/10.1520/CTR10231J
  8. Narayana, K. B., Dayanada, T. S., Dattaguru, B., Ramamurthy, T. S. and Vijayakumar, K., 1994, 'Cracks Emanating from Pin-Loaded Lugs,' Engng.Fracture Mechanics, Vol. 47, No. 1, pp. 29-38 https://doi.org/10.1016/0013-7944(94)90235-6
  9. Ju, S. H., 1997, 'Stress Intensity Factors for Cracks in Bolted Joints,' Int. J. of Fracture,' Vol. 84, pp. 129-141 https://doi.org/10.1023/A:1007357015800
  10. Rice, J., 1972, 'Some Remarks on Elastic Crack-Tip Stress Field,' Int. J. of Solids and Structures, Vol. 8, pp. 751-758 https://doi.org/10.1016/0020-7683(72)90040-6
  11. Hyer, M. W. and Liu, D., 1985, 'Stresses in Pin-Loaded Orthotropic Plates : Photoelastic Results,' J. of Composite Materials, Vol. 19, pp. 138-153 https://doi.org/10.1177/002199838501900203