材料压剪加载的实验测试

利用Ｙ—切石英晶体的各向异性动态响应材料特性，实现对粘接在石英晶体后表面的材料试件的一维平面复合压缩剪切加载。用电磁质速法测试试件中不同位置上的质点在压剪加载下的运动情况。从处于粘接界面上的量计所测纵向质速史和横向质速史，可以看到压剪波传入试件中的清晰的两波（ＱＬ波，ＱＴ波）结构，与理论估计基本相符；其它位置上量计的测试曲线亦反映了材料对压剪波传播的动态响应特点，可以看到剪切波的衰减规律。

Measurement of Compression-shear Loading of Materials

One dimensional planar compression-shear loading acting on the materials,which were cohered to the bact of quartz pieces was realized by using Y-cut a quartz crystals with their linearly elastic anisotropic dynamic response nature.Electric-magnetic particle velocity method was adopted to measure the movement of particles on different places in the materials.In the experiments,two-wave construction of compression-shear waves that propagated into the materials were observed clearly,the longitudinal and transverse particle velocity histories reflected fetures of dynamic response of materials under compression-shear loading.These results agreed with that from theoretic estimates on the whole .