Detecting Defects in Composite Polymers by Using 3D Scanning Laser Doppler Vibrometry
| Parent link: | Materials Vol. 15, iss. 20.— 2022.— [7176, 15 p.] |
|---|---|
| Співавтор: | |
| Інші автори: | , , , , |
| Резюме: | Title screen The technique of 3D scanning laser Doppler vibrometry has recently appeared as a promising tool of nondestructive evaluation of discontinuity-like defects in composite polymers. The use of the phenomenon of local defect resonance (LDR) allows intensifying vibrations in defect zones, which can reliably be detected by means of laser vibrometry. The resonance acoustic stimulation of structural defects in materials causes compression/tension deformations, which are essentially lower than the material tensile strength, thus proving a nondestructive character of the LDR technique. In this study, the propagation of elastic waves in composites and their interaction with structural inhomogeneities were analyzed by performing 3D scanning of vibrations in Fast Fourier Transform mode. At each scanning point, the in-plane (x, y) and out of plane (z) vibration components were analyzed. The acoustic stimulation was fulfilled by generating a frequency-modulated harmonic signal in the range from 50 Hz to 100 kHz. In the case of a reference plate with a flat bottom hole, the resonance frequencies for all (x, y, and z) components were identical. In the case of impact damage in a carbon fiber reinforced plastic sample, the predominant contribution into total vibrations was provided by compression/tension deformations (x, y vibration component) to compare with vibrations by the z coordinate. In general, inspection results were enhanced by analyzing total vibration patterns obtained by averaging results at some resonance frequencies. |
| Опубліковано: |
2022
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| Предмети: | |
| Онлайн доступ: | https://doi.org/10.3390/ma15207176 |
| Формат: | Електронний ресурс Частина з книги |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=668366 |
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| 200 | 1 | |a Detecting Defects in Composite Polymers by Using 3D Scanning Laser Doppler Vibrometry |f D. A. Derusova, V. P. Vavilov, N. V. Druzhinin [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 29 tit.] | ||
| 330 | |a The technique of 3D scanning laser Doppler vibrometry has recently appeared as a promising tool of nondestructive evaluation of discontinuity-like defects in composite polymers. The use of the phenomenon of local defect resonance (LDR) allows intensifying vibrations in defect zones, which can reliably be detected by means of laser vibrometry. The resonance acoustic stimulation of structural defects in materials causes compression/tension deformations, which are essentially lower than the material tensile strength, thus proving a nondestructive character of the LDR technique. In this study, the propagation of elastic waves in composites and their interaction with structural inhomogeneities were analyzed by performing 3D scanning of vibrations in Fast Fourier Transform mode. At each scanning point, the in-plane (x, y) and out of plane (z) vibration components were analyzed. The acoustic stimulation was fulfilled by generating a frequency-modulated harmonic signal in the range from 50 Hz to 100 kHz. In the case of a reference plate with a flat bottom hole, the resonance frequencies for all (x, y, and z) components were identical. In the case of impact damage in a carbon fiber reinforced plastic sample, the predominant contribution into total vibrations was provided by compression/tension deformations (x, y vibration component) to compare with vibrations by the z coordinate. In general, inspection results were enhanced by analyzing total vibration patterns obtained by averaging results at some resonance frequencies. | ||
| 461 | |t Materials | ||
| 463 | |t Vol. 15, iss. 20 |v [7176, 15 p.] |d 2022 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a nondestructive testing | |
| 610 | 1 | |a 3D scanning laser Doppler vibrometry | |
| 610 | 1 | |a local defect resonance | |
| 610 | 1 | |a polymer composite | |
| 610 | 1 | |a неразрушающий контроль | |
| 610 | 1 | |a 3D | |
| 610 | 1 | |a лазерная виброметрия | |
| 610 | 1 | |a полимерные композиты | |
| 701 | 1 | |a Derusova |b D. A. |c Specialist in biotechnical systems and technologies |c Senior researcher of Tomsk Polytechnic University, Candidate of technical sciences |f 1989- |g Dariya Aleksandrovna |3 (RuTPU)RU\TPU\pers\35097 | |
| 701 | 1 | |a Vavilov |b V. P. |c Specialist in the field of dosimetry and methodology of nondestructive testing (NDT) |c Doctor of technical sciences (DSc), Professor of Tomsk Polytechnic University (TPU) |f 1949- |g Vladimir Platonovich |3 (RuTPU)RU\TPU\pers\32161 |9 16163 | |
| 701 | 1 | |a Druzhinin |b N. V. |g Nikolay | |
| 701 | 1 | |a Shpilnoy |b V. Yu. |c radiophysicist |c engineer of Tomsk Polytechnic University |f 1992- |g Viktor Yurjevich |3 (RuTPU)RU\TPU\pers\45658 | |
| 701 | 1 | |a Pestryakov |b A. N. |c Chemist |c Professor of Tomsk Polytechnic University, Doctor of Chemical Science |f 1963- |g Aleksey Nikolaevich |3 (RuTPU)RU\TPU\pers\30471 |9 14796 | |
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