Measurement of the elastic constants by ultrasonic pulse-echo method in anisotropic materials

This procedure tries to simulate the elastic properties of materials based on measurements in preferred wave propagation directions. Test specimens were used to measure propagation velocity in different axes by the ultrasonic method in the pulse-echo technique. Measurements made by ultrasound made it possible to measure the tensile components of elastic constants with significant variations according to the composition of the materials. The results of the measurements were compared with the values obtained by other authors in similar materials. The elastic constants were obtained through their association with the propagation velocity relations in different directions in the study material. The results shows the values of the measured elastic constants [GPa] by means of the ultrasonic velocity measurement test whose values for each direction for the different materials tested.

本方法基于预设波传播方向下的测量数据，旨在模拟材料的弹性特性。本研究采用脉冲回波超声法，通过测试试样测量不同轴向的波传播速度。超声测量手段可用于测定弹性常数的拉伸分量，该分量随材料成分呈现显著差异。将本次测量结果与其他研究者针对同类材料得到的数值进行了对比。通过关联研究材料不同方向的波传播速度关系，可求得其弹性常数。本研究通过超声速度测量试验，得到了不同测试材料各传播方向下的弹性常数实测值，单位为吉帕斯卡（GPa）。