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Journal of Materials Science

, Volume 35, Issue 10, pp 2481–2491 | Cite as

Fracture and yield behavior of adhesively bonded joints under triaxial stress conditions

  • M. Imanaka
  • A. Fujinami
  • Y. Suzuki
Article

Abstract

Most of adhesively bonded joints are under complicatedly distributed triaxial stress in the adhesive layer. For the estimating of the strength of adhesively bonded joints, it is crucial to clarify behavior of yield and failure of the adhesives layer under triaxial stress conditions. Two types of the adhesively bonded joints were used in this study: One is the scarf joint which is under considerably uniform normal and shear stresses in the adhesive layer, where their combination ratio can be varied with scarf angle. The other is the butt joint with thin wall tube in which considerably uniform pure shear can be realized in the adhesive layer under torsional load conditions. These joints can cover the stress triaxiality in adhesive layers of most joints in industrial application. The effect of stress triaxiality on the yield and fracture stresses in the adhesive layer were investigated using the joints bonded by three kinds of adhesives in heterogeneous and homogeneous systems. The results showed that both the yield and failure criterion depend on the stress triaxiality and that the fracture mechanism of the homogeneous adhesive is different from that of the heterogeneous one. From these experimental results, a method of estimating the yield and failure stresses was proposed in terms of a stress triaxiality parameter.

Keywords

Shear Stress Fracture Stress Failure Criterion Wall Tube Adhesive Layer 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    N. E. Bekhet and D. C. Barton, J. of Mater. Sci. 29 (1994) 4953.Google Scholar
  2. 2.
    M. Kawagoe and M. Kitagawa, ibid. 23 (1988) 3927.Google Scholar
  3. 3.
    R. H. Sigley, A. S. Wronski and T. V. Parry, ibid. 26 (1991) 3985.Google Scholar
  4. 4.
    A. Silvestre, A. Raya, M. Fernandez-Fairen, A. Anglada and J. A. Planell, ibid. 25 (1990) 1050.Google Scholar
  5. 5.
    M. Imanaka and T. Iwata, J. of Adhesion 59 (1996) 111.Google Scholar
  6. 6.
    J. L. Lubkin, Trans. ASME, J. of Appl. Mech. 24 (1957) 255.Google Scholar
  7. 7.
    Y. Suzuki, Bulletin of JSME 27 (1984) 2372.Google Scholar
  8. 8.
    Idem., ibid. 28 (1985) 2575.Google Scholar
  9. 9.
    Idem., JSME Inter. J. 30 (1987) 1042.Google Scholar
  10. 10.
    R. D. Adams and W. C. Wake, “Structural Adhesive Joints in Engineering” (Elsevier Applied Science Publishers, 1986) p. 125.Google Scholar
  11. 11.
    R. G. Budynas, “Advanced Strength and Applied Stress Analysis” (McGraw-Hill, 1977) p. 362.Google Scholar
  12. 12.
    K. Nouno and T. Nagahiro, J. of Adhesion Soc. of Japan 22 (1993) 3 (in Japanese).Google Scholar
  13. 13.
    K. Hashimoto, “Epoxy Resins” (Nikkan-kogyo-shinn-bunnsha, 1978) p. 95 (in Japanese).Google Scholar
  14. 14.
    A. K. Kinloch, in “Structural Adhesives: Developments in Resins and Primers,” edited by A. K. Kinloch (Elsevier Applied Science, 1986) p. 127.Google Scholar
  15. 15.
    I. M. Ward and D. W. Hardle, “An Introduction to the Mechanical Properties of Solid Polymers” (John Wiley &Sons Ltd., 1993) p. 221.Google Scholar
  16. 16.
    W. J. Cantwell and A. C. Roulin-Moloney, in “Fractograph and Failure Mechanisms of Polymers and Composites,” edited by A. C. Roulin-Moloney (Elsevier Applied Science Publisher, 1988) p. 387.Google Scholar
  17. 17.
    A. Y. Yee, J. of Mat. Sci. 28 (1993) 6392.Google Scholar
  18. 18.
    ASM Handbook Committee, “Metals Handbook, Vol. 9: Fractograph and Atlas of Fractogtaphy,” 8th ed. (American Society for Metals, 1974) p. 91.Google Scholar
  19. 19.
    G. Dolev and O. Ishai, J. of Adhesion 12 (1981) 283.Google Scholar
  20. 20.
    Jean Lemaitre, “A Course on Damage Mechanics” (Springer Verlag, 1992) p. 44.Google Scholar

Copyright information

© Kluwer Academic Publishers 2000

Authors and Affiliations

  • M. Imanaka
    • 1
  • A. Fujinami
    • 2
  • Y. Suzuki
    • 3
  1. 1.Department of Technology EducationOsaka University of Education, AsahigaokaKashiwara City, OsakaJapan
  2. 2.Department of Mechanical EngineeringOsaka City University, Sugimoto-choSumiyoshi-ku, OsakaJapan
  3. 3.Nippon Sharyo, Ltd.NagoyaJapan

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