Evaluation of equivalent defect heat generation in carbon epoxy composite under powerful ultrasonic stimulation by using infrared thermography

Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

10 Цитирования (Scopus)

Выдержка

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.

Язык оригиналаАнглийский
Название основной публикацииIOP Conference Series: Materials Science and Engineering
ИздательInstitute of Physics Publishing
Том81
Издание1
DOI
СостояниеОпубликовано - 23 апр 2015
СобытиеInternational Scientific Conference on Radiation-Thermal Effects and Processes in Inorganic Materials, RTEP 2014 - Tomsk, Российская Федерация
Продолжительность: 3 ноя 20148 ноя 2014

Другое

ДругоеInternational Scientific Conference on Radiation-Thermal Effects and Processes in Inorganic Materials, RTEP 2014
СтранаРоссийская Федерация
ГородTomsk
Период3.11.148.11.14

Отпечаток

Heat generation
Carbon
Ultrasonics
Delamination
Defects
Composite materials
Ultrasonic devices
Composite structures
Nondestructive examination
Temperature
Aircraft
Hot Temperature
Air

ASJC Scopus subject areas

  • Engineering(all)
  • Materials Science(all)

Цитировать

Derusova, DA., Vavilov, V. P., & Pawar, S. S. (2015). Evaluation of equivalent defect heat generation in carbon epoxy composite under powerful ultrasonic stimulation by using infrared thermography. В IOP Conference Series: Materials Science and Engineering (1 ред., Том 81). [012084] Institute of Physics Publishing. https://doi.org/10.1088/1757-899X/81/1/012084

Evaluation of equivalent defect heat generation in carbon epoxy composite under powerful ultrasonic stimulation by using infrared thermography. / Derusova, Daria Alexandrovna; Vavilov, V. P.; Pawar, Sachin Sampatrao.

IOP Conference Series: Materials Science and Engineering. Том 81 1. ред. Institute of Physics Publishing, 2015. 012084.

Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

Derusova, DA, Vavilov, VP & Pawar, SS 2015, Evaluation of equivalent defect heat generation in carbon epoxy composite under powerful ultrasonic stimulation by using infrared thermography. в IOP Conference Series: Materials Science and Engineering. 1 ред., том. 81, 012084, Institute of Physics Publishing, International Scientific Conference on Radiation-Thermal Effects and Processes in Inorganic Materials, RTEP 2014, Tomsk, Российская Федерация, 3.11.14. https://doi.org/10.1088/1757-899X/81/1/012084
Derusova DA, Vavilov VP, Pawar SS. Evaluation of equivalent defect heat generation in carbon epoxy composite under powerful ultrasonic stimulation by using infrared thermography. В IOP Conference Series: Materials Science and Engineering. 1 ред. Том 81. Institute of Physics Publishing. 2015. 012084 https://doi.org/10.1088/1757-899X/81/1/012084
Derusova, Daria Alexandrovna ; Vavilov, V. P. ; Pawar, Sachin Sampatrao. / 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. Том 81 1. ред. Institute of Physics Publishing, 2015.
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