我们已经制定了一种评估碳纤维五个弹性常数和两个热膨胀系数的方法。这种评估方法是靠测定单向碳纤维增强环氧树脂复合材料板(UDC)的相应性能以及环氧基体材料本身的性能,而后,使用这种复合材料的层合圆柱件(CCA)来计算增强纤维的性能。这种方法的益处就在于:一旦表征了组成复合材料的纤维及基体的性能,就可以计 We have developed a method to evaluate five elastic constants and two coefficients of thermal expansion of carbon fibers. This method of evaluation is based on measuring the corresponding properties of a unidirectional carbon fiber reinforced epoxy composite board (UDC) and the properties of the epoxy matrix itself, and then using this composite laminated circular member (CCA) to calculate reinforcement Fiber performance. The benefit of this method is that once the properties of the fibers and matrix that make up the composite material have been characterized,