Journal of Materials Science

, Volume 26, Issue 5, pp 1295–1300 | Cite as

Crazing mechanism based on plastic instability

  • Masaru Ishikawa
  • Hiroshi Takahashi
Papers

Abstract

The mechanism of the nucleation of craze from the region of pre-formed voids is discussed on the basis of the finite elements analysis for an elastic plastic material containing a twodimensional array of cylindrical voids. Calculations are made for the two kinds of boundary conditions with respect to the constraint of the transverse strain under simple tension. The craze formation is considered to be an unstable concentration of plastic strain within the ligament between neighbouring voids. The present calculation shows that the constraint of the transverse strain is the essential factor in craze formation.

Keywords

Polymer Boundary Condition Plastic Strain Finite Element Analysis Present Calculation 

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References

  1. 1.
    J. P. Berry, J. Polym. Sci. 50 (1961) 107.Google Scholar
  2. 2.
    R. P. Kambour and A. S. Holik, J. Polym. Sci. A-2 7 (1969) 463.Google Scholar
  3. 3.
    R. N. Haward and D. R. J. Owen, J. Mater. Sci. 8 (1973) 1136.Google Scholar
  4. 4.
    A. S. Argon and J. G. Hannoosh, Phil. Mag. 36 (1977) 1195.Google Scholar
  5. 5.
    M. Ishikawa, I. Narisawa and H. Ogawa, J. Polym. Sci. Polym. Phys. Edn 15 (1977) 197.Google Scholar
  6. 6.
    M. Ishikawa, H. Ogawa and I. Narisawa, J. Macromol Sci. Phys. Edn B19 (1981) 421.Google Scholar
  7. 7.
    M. Ishikawa and I. Narisawa, J. Mater. Sci. 18 (1983) 1974.Google Scholar
  8. 8.
    Idem, ibid. 18 (1983) 2826.Google Scholar
  9. 9.
    R. Hill, “The Mathematical Theory of Plasticity” (Clarendon Press, Oxford, 1950).Google Scholar
  10. 10.
    C. A. Berg, in “Inelastic Behavior of Solids” edited by M. F. Kanninen, W. F. Addler, A. R. Rosenfield and R. I. Jaffer (McGraw-Hill, New York, 1971) p. 171.Google Scholar
  11. 11.
    M. Ishikawa, H. Ogawa and I. Narisawa, J. Macromol Sci. Phys. Edn B19 (421) 1989.Google Scholar
  12. 12.
    M. Ishikawa and I. Chiba, Polymer 31 (1990) 1231.Google Scholar

Copyright information

© Chapman and Hall Ltd. 1991

Authors and Affiliations

  • Masaru Ishikawa
    • 1
  • Hiroshi Takahashi
    • 2
  1. 1.Departments of Polymer Materials EngineeringYamagata UniversityYonezawaJapan
  2. 2.Departments of Precision Engineering, Faculty of EngineeringYamagata UniversityYonezawaJapan

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