Development of direct compression test for axial compressive strength of high-strength polymer fiber

在这项研究中，试样的制造方法和压缩测试方法，以估计轴向压缩强度的非常薄的高分子基纤维为约10μm的开发。在实验中使用PBO纤维作为高分子纤维的代表。利用半导体制造中的光刻技术制备了光纤样品。所开发的方法，使压缩试样的制备。在单根纤维轴压试验中，通过原位观察确定断裂点，提高了抗压强度的可靠性。

In this study, a specimen manufacture method and a compression test method to estimate axial compressive strength of very thin macromolecule-based fiber as approximately 10μm were developed. PBO fiber was used in the experiment as a representative of the high polymer fiber. Photolithography techniques have been applied in semiconductor manufacturing was used to prepare the fiber specimens. The developed method enables the preparation of compression test specimens. In the axial compression tests of single fiber it was found that the locating fracture points by in situ observation lead to improve the reliability of compressive strength.