Physical modeling of anisotropic domains: Ultrasonic imaging of laser‐etched fractures in glass
Physical modeling of anisotropic domains: Ultrasonic imaging of laser‐etched fractures in glass
复制标题
各向异性域的物理建模：玻璃激光蚀刻裂缝的超声波成像
DOI：
10.1190/1.3627790
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
S. Sil
中科院分区：
文献类型：
--
作者：
R. Stewart;N. Dyaur;B. Omoboya;J. J. S. Figueiredo;M. Willis;S. Sil
利用超声波源和接收器在比例勘探结构上进行物理模拟，在波传播和弹性性质研究中发挥着有用的作用。本文探讨了用激光蚀刻技术制造的新型玻璃块的各向异性响应。我们比较了在一套超声实验中，P波和S波从裂缝和非裂缝带的透射和反射信号。P波和S波的未改变玻璃速度分别为5801 m/s和3448 m/s，断裂带略有下降（约1%）。通过断裂带传播的信号具有减小的振幅和增加的尾波特征。反射测量（零炮检距和可变偏振和炮检距道集）记录了断裂带的显著散射。激光蚀刻断裂的玻璃样品显示出丰富的各向异性响应。
Physical modeling, using ultrasonic sources and receivers over scaled exploration structures, plays a useful role in wave propagation and elastic property investigations. This paper explores the anisotropic response of novel fractured glass blocks created with a laser-etching technique. We compare transmitted and reflected signals for Pand Swaves from fractured and unfractured zones in a suite of ultrasonic experiments. The unaltered glass velocities are 5801 m/s and 3448 m/s for P and S waves, respectively, with fractured zones showing a small decrease (about 1%). Signals propagating through the fractured zone have decreased amplitudes and increased coda signatures. Reflection surveys (zero-offset and variable polarization and offset gathers) record significant scatter from the fractured zones. The glass specimens with laser-etched fractures display a rich anisotropic response.