Microscopy Photoelasticity for Studying Crazes in Polycarbonate
Microscopy Photoelasticity for Studying Crazes in Polycarbonate
复制标题
用于研究聚碳酸酯裂纹的显微镜光弹性
DOI:
10.4028/www.scientific.net/amm.37-38.648
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发表时间:
2010-11
期刊:
影响因子:
--
通讯作者:
Jinlong Chen
中科院分区:
文献类型:
--
作者:
Zongtao Wang;Ricao Wang;Jinlong Chen
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.
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