Paper Title:
Microscopy Photoelasticity for Studying Crazes in Polycarbonate
  Abstract

The initiation, propagation and broadening of crazes in polycarbonate were studied with the aid of polarizing microscopy. A loading instrument supplying uniaxial stretch is designed to match polarizing microscopy. With polarizing microscopy, online observations of crazes and stress field can be done simultaneously. Crazes appear in bilateral anteriority of the crack tip and direction of length is perpendicular to the maximum principal stress. Stress on the boarder of the crazing zone is taken as the initiating point of the crazes and length to time of crazes follows exponent law. The initiation, propagation and broadening of crazes is a time-dependent process.

  Info
Periodical
Edited by
Yi-Min Deng, Aibing Yu, Weihua Li and Di Zheng
Pages
648-651
DOI
10.4028/www.scientific.net/AMM.37-38.648
Citation
Z. T. Wang, J. L. Chen, R. C. Wang, "Microscopy Photoelasticity for Studying Crazes in Polycarbonate", Applied Mechanics and Materials, Vols. 37-38, pp. 648-651, 2010
Online since
November 2010
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$32.00
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