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THE APPLICATION OF FINITE ELEMENT MODELLING TO GUIDED WAVE TESTING SYSTEMS

机译:有限元模拟在引导波检测系统中的应用

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Three-dimensional finite element (FE) wave propagation models have been used to examine the effect of defect geometry and frequency on the reflection coefficients of longitudinal guided waves in 3" Schedule 40 steel pipe. An insight into the propagation characteristics of guided waves in rails is also presented. The dispersion curves for a rail are discussed and modelling results of the variation of reflection coefficient with defect depth is presented for a BS113A type rail.
机译:三维有限元(Fe)波传播模型已用于检查3“时间表40钢管中纵向引导波反射系数对缺陷几何和频率的效果。对轨道中导波的传播特性的洞察还提出了。讨论了用于轨道的分散曲线,并介绍了BS113A型轨道的反射系数的变化结果的建模。

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