Strain-hardening behavior of polycarbonate in the glassy state
Strain-hardening behavior of polycarbonate in the glassy state
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DOI：
10.1122/1.1319175
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发表时间：
2000-10
影响因子：
3.3
通讯作者：
T. Tervoort;L. Govaert
中科院分区：
文献类型：
--
作者：
T. Tervoort;L. Govaert
本文对聚碳酸酯在玻璃态下的三维应变硬化响应进行了实验表征。使用一种特殊的机械调节技术，在拉伸、压缩和剪切中获得了大的均匀变形。实验结果与一些现有的网络模型进行了比较。结果表明，剪切模量G=26 MPa的新hookean行为可以很好地描述应变硬化响应的变形依赖状态。在本研究中应用的变形中，没有观察到纠缠网络的有限可扩展性的迹象。
This paper presents an experimental characterization of the three-dimensional strain-hardening response of polycarbonate in the glassy state. Using a special mechanical conditioning technique, large homogeneous deformations were obtained in tension, compression, and shear. The experimental results are compared to a number of existing network models. It was found that the state-of deformation dependence of the strain-hardening response was adequately described by neo-Hookean behavior with a shear modulus G=26 MPa. Up to the deformations applied in this study, no sign of a finite extensibility of the entanglement network was observed.