Ultrasonic spectroscopic analysis of impact damage in composites by using laser vibrometry

Ultrasonic spectroscopic analysis of impact damage in composites by using laser vibrometry

Bibliographic Details
Parent link:Composite Structures
Vol. 211.— 2019.— [P. 221-228]
Corporate Authors: Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов, Национальный исследовательский Томский политехнический университет Инженерная школа неразрушающего контроля и безопасности Центр промышленной томографии Научно-производственная лаборатория "Тепловой контроль"
Other Authors: Derusova D. A. Dariya Aleksandrovna, Vavilov V. P. Vladimir Platonovich, Sfarra S. Stefano, Sarasini F. Fabrizio, Krasnoveykin V. A. Vladimir Alekseevich, Chulkov A. O. Arseniy Olegovich, Pawar S. S. Sachin Sampatrao
Summary:Title screen
Contemporary composite materials are continuously being modified and improved in accordance with growing quality requirements of aerospace systems. New manufacturing technologies stimulate development of appropriate (novel) nondestructive testing (NDT) methods and respective hardware for detecting and characterizing hidden defects. One of the recent improvements in this area is related to combining acoustic stimulation of test objects and scanning laser vibrometry. This paper describes an ultrasonic spectroscopic approach to laser vibrometry applied to hybrid composite materials subjected to impact damage. The meander-shaped signal for resonance stimulation was applied to enhance the detection of multi-component defects. It has been shown that wide-band frequency stimulation provides some advantages in regard to mono-frequency excitation because it activates more zones of multi-component defects thus allowing more accurate estimation of defect size.
Режим доступа: по договору с организацией-держателем ресурса
Published: 2019
Subjects:
электронный ресурс
труды учёных ТПУ
ультразвуковая спектроскопия
виброметрия
локальные дефекты
повреждения
удары
гибридные композиционные материалы
Online Access:https://doi.org/10.1016/j.compstruct.2018.12.050
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=659307
Description
Summary:Title screen
Contemporary composite materials are continuously being modified and improved in accordance with growing quality requirements of aerospace systems. New manufacturing technologies stimulate development of appropriate (novel) nondestructive testing (NDT) methods and respective hardware for detecting and characterizing hidden defects. One of the recent improvements in this area is related to combining acoustic stimulation of test objects and scanning laser vibrometry. This paper describes an ultrasonic spectroscopic approach to laser vibrometry applied to hybrid composite materials subjected to impact damage. The meander-shaped signal for resonance stimulation was applied to enhance the detection of multi-component defects. It has been shown that wide-band frequency stimulation provides some advantages in regard to mono-frequency excitation because it activates more zones of multi-component defects thus allowing more accurate estimation of defect size.
Режим доступа: по договору с организацией-держателем ресурса
DOI:10.1016/j.compstruct.2018.12.050

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