Craze Damage Field Near the Crack Tip of Non-crystalline Polymers

M. Jie, Y. P. Li, Chak Yin Tang, C. C. Li

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

Craze damage is introduced in the plastic region near the crack tip of non-crystalline polymers. A modified Dugdale model is proposed, from which the size of the plastic region is determined. Example shows that the craze damage leads to the increasing of the size of plastic region. Besides, the plastic region near the steadily extending crack tip is studied under Dugdale model. Based on such assumptions as slowly extending crack, small scale crazing and linear viscoelastic materials, etc., a nonlinear differential-integral equation governing the crack growth is obtained, via the energy principle. From this equation, it is found that the effect of craze damage is rather dominant.
Original languageEnglish
Pages (from-to)7-12
Number of pages6
JournalYing Yong Li Xue Xue Bao/Chinese Journal of Applied Mechanics
Volume15
Issue number3
Publication statusPublished - 1 Sep 1998

Keywords

  • Crack tip
  • Craze damage
  • Non-crystalline polymer

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering

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