Lamb wave mode conversion and multiple-reflection mechanisms for simply and reliably evaluating delamination in composite laminates
Lamb wave mode conversion and multiple-reflection mechanisms for simply and reliably evaluating delamination in composite laminates
复制标题
兰姆波模式转换和多重反射机制可简单可靠地评估复合材料层压板的分层
DOI:
10.1080/09243046.2022.2146564
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发表时间:
2022
影响因子:
2.9
通讯作者:
Nobuyuki Toyama
中科院分区:
文献类型:
--
作者:
Kazuki Ryuzono;Shigeki Yashiro;Sota Onodera;Nobuyuki Toyama
Lamb wave propagation must be understood comprehensively for simply evaluating delamination during ultrasonic testing. However, the difference between wave propagation, visualized using laser Doppler vibrometer and pulsed-laser scanners, has not been sufficiently investigated, and knowledge of optimal conditions for evaluating delamination is limited. Thus, in this study, the mode conversion and multiple reflections of Lamb waves propagating in a delaminated cross-ply laminate were visualized using different laser scanners, delamination depths, and wave incident angles. Delamination was characterized using maximum-amplitude map postprocessing under specific conditions. Further numerical analysis revealed that owing to multiple reflections of the antisymmetric mode in incident and mode-converted waves, standing waves were generated in the delaminated sublaminate. Dispersion curve and flexural stiffness calculations confirmed the conditions required for high-amplitude standing waves, thereby providing guidelines for simply and reliably evaluating delamination during inspections.
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DOI:
10.1177/1045389x20978294
发表时间:
2020
期刊:
Journal of Intelligent Materials Systems and Structures
影响因子:
--
作者:
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通讯作者:
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发表时间:
2007-05
影响因子:
3.6
作者:
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影响因子:
3.9
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通讯作者:
Kazuki Ryuzono;S. Yashiro;S. Onodera;N. Toyama
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2010
期刊:
影响因子:
--
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影响因子:
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