摘要
提出了一种实用的声学法测量复合材料弹性常数的方法。依据复合材料中声波速度与材料弹性常数之间的本构关系,测量不同传播方向的少数几个声速,就可以得到其弹性常数矩阵。以复合绝缘子为测量样品,为提高测量横波的精度,根据超声波在边界上的波型转换条件,使用常规纵波探头对由掠入射纵波产生的横波进行测量。
A test method of velocity measurement for elastic constants of composite material is proposed. Based on the relationship between elastic constants and sound velocities in composite material and measuring very few velocities of different propagation direction, the elastic constant matrix can be calculated out. Taking the composite insulator as a measurement sample, knowing the waveform conversion condition on the boundary, only a conventional longitudinal testing probe is needed to measurement transverse wave produced by grazing incidence longitudinal wave.
出处
《材料工程》
EI
CAS
CSCD
北大核心
2005年第11期46-49,共4页
Journal of Materials Engineering
关键词
复合材料
弹性常数矩阵
声学法测量
composite material
elastic constant matrix
velocity measurement
