混杂纤维复合材料热性能特异性研究

本文对碳纤维、玻璃纤维混杂纤维复合材料进行了热膨胀系数计算，计算结果表明，环向碳纤维的加入可以使碳纤维增强复合材料的纵向热膨胀系数趋于正值，而同等厚度环向玻璃纤维的加入却使碳纤维增强复合材料的纵向热膨胀系数更趋于负值，从而增加了复合材料零膨胀设计范围。

The thermal expansion coefficient of hybrid composites with glass fiber and carbon fiber is calculated in this paper. The result shows that carbon fiber used in hoop direction makes the longitudinal thermal expansion coefficient of carbon fiber composites tend to become positive value,while glass fiber of equal thickness used in hoop direction makes the longitudinal thermal expansion coefficient of carbon fiber composites tend to become negative value, therefore the design range of zero expansion of composites is expansed.