Evaluation of equivalent defect heat generation in carbon epoxy composite under powerful ultrasonic stimulation by using infrared thermography; IOP Conference Series: Materials Science and Engineering; Vol. 81 : Radiation-Thermal Effects and Processes in Inorganic Materials
| Parent link: | IOP Conference Series: Materials Science and Engineering Vol. 81 : Radiation-Thermal Effects and Processes in Inorganic Materials.— 2015.— [012084, 7 p.] |
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| Автор: | |
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| Інші автори: | , |
| Резюме: | Title screen Low velocity impact is a frequently observed event during the operation of an aircraft composite structure. This type of damage is aptly called as "blind-side impact damage" as it is barely visible as a dent on the impacted surface, but may produce extended delaminations closer to the rear surface. One-sided thermal nondestructive testing is considered as a promising technique for detecting impact damage but because of diffusive nature of optical thermal signals there is drop in detectability of deeper subsurface defects. Ultrasonic Infrared thermography is a potentially attractive nondestructive evaluation technique used to detect the defects through observation of vibration-induced heat generation. Evaluation of the energy released by such defects is a challenging task. In this study, the thin delaminations caused by impact damage in composites and which are subjected to ultrasonic excitation are considered as local heat sources. The actual impact damage in a carbon epoxy composite which was detected by applying a magnetostrictive ultrasonic device is then modeled as a pyramid-like defect with a set of delaminations acting as an air-filled heat sources. The temperature rise expected on the surface of the specimen was achieved by varying energy contribution from each delamination through trial and error. Finally, by comparing the experimental temperature elevations in defective area with the results of temperature simulations, we estimated the energy generated by each defect and defect power of impact damage as a whole. The results show good correlation between simulations and measurements, thus validating the simulation approach. Режим доступа: по договору с организацией-держателем ресурса |
| Мова: | Англійська |
| Опубліковано: |
2015
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| Предмети: | |
| Онлайн доступ: | http://dx.doi.org/10.1088/1757-899X/81/1/012084 http://earchive.tpu.ru/handle/11683/14729 |
| Формат: | Електронний ресурс Частина з книги |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=643011 |
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| 200 | 1 | |a Evaluation of equivalent defect heat generation in carbon epoxy composite under powerful ultrasonic stimulation by using infrared thermography |f D. A. Derusova, V. P. Vavilov, S. S. Pawar | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 7 tit.] | ||
| 330 | |a Low velocity impact is a frequently observed event during the operation of an aircraft composite structure. This type of damage is aptly called as "blind-side impact damage" as it is barely visible as a dent on the impacted surface, but may produce extended delaminations closer to the rear surface. One-sided thermal nondestructive testing is considered as a promising technique for detecting impact damage but because of diffusive nature of optical thermal signals there is drop in detectability of deeper subsurface defects. Ultrasonic Infrared thermography is a potentially attractive nondestructive evaluation technique used to detect the defects through observation of vibration-induced heat generation. Evaluation of the energy released by such defects is a challenging task. In this study, the thin delaminations caused by impact damage in composites and which are subjected to ultrasonic excitation are considered as local heat sources. The actual impact damage in a carbon epoxy composite which was detected by applying a magnetostrictive ultrasonic device is then modeled as a pyramid-like defect with a set of delaminations acting as an air-filled heat sources. The temperature rise expected on the surface of the specimen was achieved by varying energy contribution from each delamination through trial and error. Finally, by comparing the experimental temperature elevations in defective area with the results of temperature simulations, we estimated the energy generated by each defect and defect power of impact damage as a whole. The results show good correlation between simulations and measurements, thus validating the simulation approach. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
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| 461 | 1 | |0 (RuTPU)RU\TPU\network\2008 |t IOP Conference Series: Materials Science and Engineering | |
| 463 | 1 | |0 (RuTPU)RU\TPU\network\7891 |t Vol. 81 : Radiation-Thermal Effects and Processes in Inorganic Materials |o International Scientific Conference, 3-8 November 2014, Tomsk, Russia |o [proceedings] |v [012084, 7 p.] |d 2015 | |
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a дефекты | |
| 610 | 1 | |a тепло | |
| 610 | 1 | |a углерод | |
| 610 | 1 | |a эпоксидные композиты | |
| 610 | 1 | |a инфракрасная термография | |
| 610 | 1 | |a неразрушающий контроль | |
| 610 | 1 | |a композитные структуры | |
| 610 | 1 | |a композиты | |
| 700 | 1 | |a Derusova |b D. A. |c chemist |c engineer of Tomsk Polytechnic University |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 Pawar |b S. S. |c specialist in the field of non-destructive testing |c Senior researcher of Tomsk Polytechnic University |f 1980- |g Sachin Sampatrao |3 (RuTPU)RU\TPU\pers\35940 | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет (ТПУ) |b Институт неразрушающего контроля (ИНК) |b Лаборатория № 34 (Тепловых методов контроля) |3 (RuTPU)RU\TPU\col\19616 |
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