Thermosonic Chladni figures for defect-selective imaging

Thermosonic Chladni figures for defect-selective imaging

Bibliographic Details
Parent link:Ultrasonics
Vol. 60.— 2015.— [P. 1-5]
Main Author: Solodov I. Igor
Corporate Author: Национальный исследовательский Томский политехнический университет (ТПУ) Институт неразрушающего контроля (ИНК) Лаборатория № 34 (Тепловых методов контроля)
Other Authors: Derusova D. A. Dariya Aleksandrovna, Rahammer M. Markus
Summary:Title screen
Thermosonic patterns produced by resonant vibrations of simulated and realistic defects are experimentally observed and compared with conventional vibration Chladni figures. The patterns are interpreted on the basis of hysteretic damping model that accounts for in-plane polarization component of vibrations. The analysis and simulation results show that thermosonic Chladni figures are the patterns of dissipation of vibration energy determined by a square of the in-plane strain developed in the resonant vibrations. The difference in nodal patterns between the two types of Chladni figures is due to additional extension-compression of the material mainly in near boundary area. The contribution of various order resonance modes in single-frequency imaging is illustrated and their superposition is shown to produce a full-scale thermosonic image of a resonant defect in a wideband excitation mode.
Режим доступа: по договору с организацией-держателем ресурса
Language:English
Published: 2015
Subjects:
электронный ресурс
труды учёных ТПУ
термоножницы
вибрации
одночастотные колебания
дефекты
Online Access:https://doi.org/10.1016/j.ultras.2015.02.007
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=656549

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