NUMERICAL INVESTIGATION OF POLYMER CRAZE GROWTH AND FRACTURE
NUMERICAL INVESTIGATION OF POLYMER CRAZE GROWTH AND FRACTURE
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DOI：
10.1021/ma00109a043
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发表时间：
1995-09
期刊：
影响因子：
5.5
通讯作者：
F. Xiao;W. Curtin
中科院分区：
文献类型：
--
作者：
F. Xiao;W. Curtin
用弹性弹簧网络模型研究了许多玻璃态聚合物的银纹形成和破坏。使用简单的规则修改网络弹簧的弹性特性，以捕获大块聚合物到银纹材料变形和随后的银纹失效。由此产生的银纹区和银纹失效由于应力集中在银纹材料在原始裂纹尖端的自洽演化与实验观察和银纹聚合物的一般特征的其他理论预测基本一致。
The craze formation and failure typical of many glassy polymers have been investigated using an elastic spring network to model both bulk and crazed polymer material. The elastic properties of the network springs were modified, using simple rules, to capture the hulk polymer to crazed material deformation and the subsequent failure of the craze. The resulting self-consistent evolution of the craze zone and craze failure due to a stress concentration in the craze material at the original crack tip are in basic agreement with experimental observations and with other theoretical predictions of the general features of crazing polymers.