增强型复合碳纤维材料的弹性常数矩阵及超声传播特性

The propagation of ultrasonic waves in CFR material and its elastic constant matrix

用声学方法测量了各向异性增强型复合碳纤维材料的弹性常数矩阵．由此矩阵，根据各向异性体的声波特征方程，给出材料在有关截面内的慢度曲线。所建立的方法可进一步用于这种材料的检测，并为研究材料的阵列扫描检测技术提供了基础。

In this paper, the elastic constant matrix for anisotropic carbon fiber-reinforced (CFR) material is given by the measurement of ultrasonic wave velocities. According to this matrix and the characteristic equation for anisotropic solids, the slowness curves for this material are obtained. The measuring method used in this paper would be a basis for ultrasonic array scanning technique, and may be a method for the evaluation of the CFR material.