Nonlinear coda wave interferometry for the global evaluation of damage levels in complex solids
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- 作者：Yuxiang Zhanga ; b ; Vincent Tournata ; vincent.tournat@univ-lemans.fr" class="auth_mail" title="E-mail the corresponding author ; Odile Abrahamb ; Olivier Durandb ; Sté ; phane Letourneura ; Alain Le Duffa ; c ; Bertrand Lascoupd
- 关键词：Global evaluation of damage level ; Nonlinear acoustics ; Coda wave interferometry ; Nonlinear wave modulation
- 刊名：Ultrasonics
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：73
- 期：Complete
- 页码：245-252
- 全文大小：973 K
文摘
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Nonlinear modulation method is combined with CWI for global damage assessment.
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Propagation medium’s elastic nonlinear level is evaluated effectively and globally.
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Damage degree of Pyrex samples are related to their effective nonlinear level.
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Influences from temperature change to the method are discussed.