本文通过拉伸实验研究了国产聚碳酸酯板的力学行为，得到了这种材料在不同应变速率下的真实应力—应变曲线。
The mechanical behaviour of polycarbonate (PC) is studied in this paper by tensile experiments. A set of true stress—strain curves for different strain rates is obtained.
通过对纤维束的纵向拉伸和羊毛纤维束的横向压缩实验，绘出了其拉伸性能曲线和压缩性能曲线。
The curve of elongation properties of the fiber bundles was plotted according to the experiments of longitudinal extension and transverse compression of the bundles.
实验数据表明：大编织角复合材料在单向拉伸作用下的破坏形式较为复杂，其应力-应变曲线呈现非线性特性。
The experiment results show that composites with large braiding Angle have complex crack forms under uniaxial tensile loading and the tensile stress-strain curves take on nonlinear characters.
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