ULTRASONIC INSPECTION OF INHOMOGENEOUS WELDS SIMULATED BY GAUSSIAN BEAM SUPERPOSITION

机译：用高斯光束叠加法模拟非均质焊缝的超声检查

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The presented Gaussian beam superposition technique allows for transducer field calculation in inhomogeneous anisotropic media. Due to the complex cuspidal shapes of the quasi-shear vertical (qSV) wavefronts in the austenitic weld material, only qP- and SH-wave propagation has been addressed here. The approach uses a paraxial approximation, thus deviations from the exactly calculated field patterns only exist in the regions off the vicinity of the central ray. The high computational efficiency of the method using a ten-term Gaussian beam solution is obvious: the calculation time for the results shown in Figs. 2 and 3 is about 20 seconds on a 233 MHz Pentium PC.

机译：提出的高斯光束叠加技术可以在非均质各向异性介质中进行换能器场计算。由于奥氏体焊接材料中的准剪切垂直（qSV）波前的复杂的尖峰形状，此处仅解决了qP和SH波传播问题。该方法使用近轴近似，因此与精确计算的场模式的偏差仅存在于中心射线附近的区域中。使用十项高斯光束解的方法的高计算效率是显而易见的：结果的计算时间如图5和6所示。在233 MHz奔腾PC上，2和3大约需要20秒。

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来源
《Annual Symposium on Quantitative Nondestructive Evaluation; 19980719-24; Snowbird,UT(US)》|1998年|P.1107-1113|共7页
会议地点 SnowbirdUT(US)
作者
Martin Spies; Michael Kroening;
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作者单位

Fraunhofer-Institute for Nondestructive Testing (IZFP) University of Saarland, Bldg. 37 66123 Saarbruecken, Germany;

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原文格式 PDF
正文语种 eng
中图分类无损探伤仪器;
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专利

1. Modeling of transducer fields in inhomogeneous anisotropic materials using Gaussian beam superposition [J] . M. Spies NDT & E international . 2000,第3期

机译：非均匀各向异性材料中换能器场的高斯光束叠加建模
2. Ultrasonic Beam Propagation in Highly Anisotropic Materials Simulated by Multi-Gaussian Beams [J] . Hyunjo Jeong, Lester W. Schmerr Jr. Journal of Mechanical Science and Technology . 2007,第8期

机译：多高斯光束模拟的高各向异性材料中的超声波束传播
3. Ultrasonic beam propagation in highly anisotropic materials simulated by multi-Gaussian beams [J] . Hyunjo Jeonga, Lester W. Schmerr Journal of Mechanical Science and Technology . 2007,第8期

机译：多高斯光束模拟高各向异性材料中的超声波束传播
4. ULTRASONIC INSPECTION OF INHOMOGENEOUS WELDS SIMULATED BY GAUSSIAN BEAM SUPERPOSITION [C] . Martin Spies, Michael Kroening Annual Symposium on Quantitative Nondestructive Evaluation . 1999

机译：高斯梁叠加模拟的超声检查非均匀焊缝
5. Propagation of Gaussian beams through inhomogeneous cylinders with shock-like profiles of refractive index: Grazing incidence case. [D] . Adamovsky, Grigory. 1997

机译：高斯光束通过不均匀圆柱体的传播，其折射率像冲击一样：掠入射情况。
6. The Influence of the Welding Process on the Ultrasonic Inspection of 9Ni Steel Pipe Circumferential Welded Joints [O] . João da Cruz Payão Filho, Elisa Kimus Dias Passos, Rodrigo Stohler Gonzaga, 2020

机译：焊接工艺对9％Ni钢管周向焊接接头超声检查的影响
7. Elementary Green function as an integral superposition of Gaussian beams in inhomogeneous anisotropic layered structures in Cartesian coordinates [O] . Vlastislav Červený, Ivan Pšenčík 2017

机译：基本的绿色功能作为笛卡尔坐标中不均匀各向异性分层结构中高斯梁的整体叠加

ULTRASONIC INSPECTION OF INHOMOGENEOUS WELDS SIMULATED BY GAUSSIAN BEAM SUPERPOSITION

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