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

The Korean Society of Mechanical Engineers (대한기계학회)
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Analyses of Stress Intensity Factors and Evaluation of Fracture Toughness in Adhesively Bonded DCB Joints

DCB 접착이음에 대한 응력세기계수의 해석 및 파괴인성의 평가

  • Published : 2000.06.01
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Abstract

In this paper, an evaluation method of fracture toughness to apply interfacial fracture mechanics was investigated in adhesively bonded double-cantilever beam (DCB) joints. Four types of adhesively bonded DCB joints with an interface crack were prepared for analyses of the stress intensity factors using boundary element method(BEM) and the fracture toughness test. From the results of BEM analysis and fracture toughness experiments, it is found that the stress intensity factor, K1 is a parameter driving the fracture of adhesively bonded joints. Also, the evaluation method of fracture toughness by separated stress intensity factors of mixed mode cracks was proposed and the influences of mode components for its fracture toughness are investigated in adhesively bonded DCB joints.

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References

  1. 정남용, 장진모, 1997, 'Al/Steel 이종재료의 접착이음에 대한 혼합모드의 파괴기준,' 대한기계학회 논문집(A), 제21권, 제8호, pp.1322-1331
  2. 정남용, 1995, '이종재료의 경사 접착이음에 대한 파괴강도의 예측,' 한국공작기계학회지, 제4권, 제4호, pp. 50-60
  3. 鄭南龍, 結城良治, 石川晴雄, 中野 禪, 1990, '接着繼手の混合モ-ド破壞基準,' 材料, 第39卷, 443號, pp. 1095-1100
  4. 정남용, 1993, '접착이음의 강도평가에 관한 연구 (제2보),' 대한기계학회논문집, 제17권, 제4호, pp. 855-862
  5. 鄭南龍, 結城良治, 石川晴雄, 中野 禪, 1988, '接着繼手の强度評價への)破壞力學の應用(第l報),' 日本機械學會論文集(A), 第54卷, 506號, pp. 1895-1902
  6. Yuuki, R. and J. Q. Xu, 1992, 'Stress Based Criterion for an Interface Crack Kinking out of the Iinterface in Dissimilarmaterials,' Eng. Frac. Meek, Vol. 41, No. 5, pp. 635-644 https://doi.org/10.1016/0013-7944(92)90150-D
  7. 정남용, 송춘호, 1996, '이종접합재의 계면균열에 대한 진전경로의 예측,' 한국자동차공학회 논문집, 제4권, 제3호, pp. 112-121
  8. Rice, J. R., 1988, 'Elastic Fracture Mechanics Concepts for Interfacial Cracks,' Trans. ASME, J. of Applied Mechanics, Vol. 55, pp. 98-105
  9. 曺相鳳, 結城良治, 1989, '異材界面き裂の應力擴大係數の境界要素彈性解析,' 日本機械學會論文集(A), 第55卷, 510號, pp. 340-347
  10. Yuuki, R. and S. B. Cho, 1989, 'Efficient Boundary Element Analysis of Stress Intensity Factors for Interface Cracks in Dissimilar Materials,' Eng. Frac. Mech, Vol. 34 No. 1, pp. 179-188 https://doi.org/10.1016/0013-7944(89)90251-8
  11. Gross, B. and Srawley, J. E., 1966, 'Stress Intensity Factors by Boundary Collocation for Single Edge Notch Specimens Subject to Splitting Forces,' NASA Tech. Note, D-3295
  12. Kanninen, M. F., 1973, 'An Augmented Double Cantilever Beam Model for Studying Ppropagation and Arrest,' Int. J. Fracture, Vol. 9, pp. 83-91 https://doi.org/10.1007/BF00035958
  13. Liechti, K. M and Chai, Y. S., 1992, 'Asymmetric Shielding in Interfacial Fracture Under Inplane Shear', J. Appl. Mech., Vol. 59, pp. 259-304
  14. Hutchinson, J. W. and Z. Sou, 1991, 'Mixed Mode Cracking in Layered Materials,' Advances in Applied Mechanics, Vol. 28, pp. 163-191