Second-harmonic generation of ultrasonic guided wave propagation in an anisotropic solid plate

Second-harmonic generation of ultrasonic guided wave propagation in an anisotropic solid plate
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超声导波在各向异性固体板中传播的二次谐波产生

DOI:
10.1063/1.2899938
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发表时间:
2008-03
影响因子:
4
通讯作者:
邓明晰
邓明晰
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
邓明晰

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分析了一次超声导波在各向异性固体平板中传播的非线性效应。给出了相应的二次谐波位移场的形式解。分析结果清楚地表明,板材料的弹性各向异性可以,在几个方面,影响二次谐波的产生效率由主导波传播,并且相应的二次谐波是高度敏感的弹性各向异性的板材料。所获得的结果可以提供一个潜在的准确表征的弹性各向异性的板材料与超声导波传播的二次谐波产生的效果。
The nonlinear effect of primary ultrasonic guided wave propagation in an anisotropic solid plate is analyzed. The formal solution of the corresponding second-harmonic displacement field is presented. The analytical results clearly indicate that the elastic anisotropy of the plate material can, in several aspects, influence the efficiency of generation of second harmonic by primary guided wave propagation, and that the corresponding second harmonic is highly sensitive to the elastic anisotropy of the plate material. The results obtained may provide a potential for accurately characterizing the elastic anisotropy of the plate material with the effect of second-harmonic generation by ultrasonic guided wave propagation.
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