3D modeling of circumferential SH guided waves in pipeline for axial cracking detection in ILI tools
3D modeling of circumferential SH guided waves in pipeline for axial cracking detection in ILI tools
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ILI 工具中用于轴向裂纹检测的管道中圆周 SH 导波的 3D 建模
DOI：
10.1016/j.ultras.2014.08.018
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发表时间：
2015-02-01
期刊：
影响因子：
4.2
通讯作者：
Wei, Zheng
中科院分区：
文献类型：
--
作者：
Wang, Shen;Huang, Songling;Wei, Zheng
在本文中，SH（剪切水平）导波在管道的圆周方向上传播的三维建模，在ILI（在线检测）工具中的轴向裂纹检测的实施的目的。首先给出了一个理论公式，然后解释了三维数值模拟工作。将模拟得到的位移波结构与频散方程进行了比较，验证了有限元软件包的有效性。沿轴向方向的横向槽沿着模拟轴向开裂。得到了反射系数和透射系数曲线，为利用周向SH导波定量检测管道轴向裂纹提供了依据。(C)2014爱思唯尔有限公司版权所有。
In this paper, SH (shear horizontal) guided waves propagating in the circumferential direction of pipeline are modeled in 3 dimensions, with the aim for axial cracking detection implementation in ILI (in-line inspection) tools in mind. A theoretical formulation is given first, followed by an explanation about the 3D numerical modeling work. Displacement wave structures from the simulation and dispersion equation are compared to verify the effectiveness of the FEM package. Transverse slots along the axial direction are modeled to simulate axial cracking. Reflection and transmission coefficients curves are obtained to provide insight in using circumferential SH guided waves for quantitative testing of axial pipeline cracking. (C) 2014 Elsevier B.V. All rights reserved.