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Acta Mechanica Sinica

, Volume 10, Issue 3, pp 282–288 | Cite as

Computer simulation of creep damage at crack tip in short fibre composites

  • Zhang Shuangyin
  • L. W. Tsai
Article

Abstract

Creep damage at crack tip in short fibre composites has been simulated by using the finite element method (FEM). The well-known Schapery non-linear viscoelastic constitutive relationship was used to characterize time-dependent behaviour of the material. A modified recurrence equation was adopted to accelerate the iteration. Kachanov-Rabotnov's damage evolution law was employed. The growth of the damage zone with time around the crack tip was calculated and the results were shown with the so-called “digit photo”, which was produced by the printer.

Key Words

creep damage visco-elasticity finite element method short fibre composite computer simulation 

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References

  1. [1]
    Zhang SY and Cai LW. Experimental characterization of non-linear viscoelastic properties and creep damage of short fibre composites, In: Yagang Fan ed. Advanced Structural Materials. C-MRS International 1990 Symposia. Beijing 1990. North-Holland: Elsevier Science Publisher, BV. 1991. 171–174Google Scholar
  2. [2]
    Schapery RA. On the characterization of nonlinear viscoelastic materials.J Polymer Eng Sci, 1969, 9: 295–310CrossRefGoogle Scholar
  3. [3]
    Tuttle ME, Brinson HF. Prediction of the long-term creep compliance of general composite laminates.Exp Mech, 1986, 26: 89–102CrossRefGoogle Scholar
  4. [4]
    Lou YC, Schapery RA. Viscoelastic characterization of a nonlinear fiber-reinforced plastic.J Comp Mater, 1971, (5): 208–234Google Scholar
  5. [5]
    Zhang SY, Xiang XY. Creep characterization of a fiber reinforced plastic material.J Reinforced Platics and Composites, 1992, 11(10): 1187–1194Google Scholar
  6. [6]
    Zhang Shuangyin, Leech CM. Inhomogeneous isoparametric elements for stress analysis of composites.Scientia Sinica, 1987, XXX: 832–845Google Scholar
  7. [7]
    Saanouni K, Chaboche JL, Bathias C. On the creep crack growth prediction by a local approach.Engng Fract Mech, 1986, 25 (5/6) 677–691CrossRefGoogle Scholar

Copyright information

© Chinese Society of Theoretical and Applied Mechanics 1994

Authors and Affiliations

  • Zhang Shuangyin
    • 1
  • L. W. Tsai
    • 1
  1. 1.Institute of MechanicsChinese Academy of SciencesBeijingChina

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