Guided wave scattering by geometrical change or damage: Application to characterization of fatigue crack and machined notch
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- 作者：Nicolas Quaegebeur ; nicolas.quaegebeur@usherbrooke.ca" class="auth_mail" title="E-mail the corresponding author ; Nidhal Bouslama ; Maxime Bilodeau ; Robin Guitel ; Patrice Masson ; Ahmed Maslouhi ; Philippe Micheau
- 关键词：Guided waves ; Diffraction ; Scattering ; Far-field ; Crack ; Piezoceramics
- 刊名：Ultrasonics
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：73
- 期：Complete
- 页码：187-195
- 全文大小：1933 K
文摘
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Hankel transform is used for determination of the far-field scattering of guided waves.
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No reference measurement is required, allowing quantitative comparison between structures.
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The methodology and experimental arrangement are discussed in details.
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Application to the comparison between machined notch and fatigue crack is proposed.
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Guidelines for SHM configuration for fatigue crack detection are proposed.