Applied Mathematics and Mechanics

, Volume 23, Issue 3, pp 271–275 | Cite as

Micromechanics analysis on evolution of crack in viscoelastic materials

  • Zhang Shuang-yin


A preliminary analysis on crack evolution in viscoelastic materials was presented. Based on the equivalent inclusion concept of micro-mechanics theory, the explicit expressions of crack opening displacement δ and energy release rate G were derived, indicating that both δ and G are increasing with time. The equivalent modulus of the viscoelastic solid comprising cracks was evaluated. It is proved that the decrease of the modulus comes from two mechanisms: one is the viscoelasticity of the material; the other is the crack opening which is getting larger with time.

Key words

viscoelasticity crack micromechanics 

CLC numbers

O345 O346.1 


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Copyright information

© Editorial Committee of Applied Mathematics and Mechanics All rights reserved 1980

Authors and Affiliations

  • Zhang Shuang-yin
    • 1
  1. 1.Institute of MechanicsChinese Academy of SciencesBeijingP R China

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