Non-Destructive Evaluation of Composite Helmets Using IR Thermography and Ultrasonic Excitation

eng Article in English DOI: 10.14313/PAR_242/89

send Waldemar Świderski , Monika Pracht Military Institute of Armament Technology, Wyszyńskiego 7 St., 05-220 Zielonka

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Abstract

The paper presents selected results of non-destructive testing of composite helmets with deliberately introduced defects. Ultrasound pulsed infrared thermography was used for the tests. In order to determine the initial possibilities of this method, artificial defects made of Teflon featuring different area sizes and designed to simulate delamination were placed between layers of the aramid composite from which the helmet was made. The obtained results confirmed the effectiveness of the NDT method used in these tests.

Keywords

IR thermography, non-destructive testing, ultrasounds

Nieniszcząca ocena hełmów kompozytowych z wykorzystaniem termografii w podczerwieni i wzbudzenia ultradźwiękowego

Streszczenie

W pracy przedstawiono wybrane wyniki badań nieniszczących hełmów kompozytowych z celowo wprowadzonymi defektami. Do badań wykorzystano impulsową termografię w podczerwieni z ultradźwiękowym źródłem wzbudzenia cieplnego. W celu określenia wstępnych możliwości tej metody, pomiędzy warstwami kompozytu aramidowego, z którego wykonano hełm, umieszczono na różnych głębokościach pod powierzchnią sztuczne defekty wykonane z teflonu o różnej wielkości powierzchni. Te sztuczne defekty symulowały rozwarstwienia. Uzyskane wyniki potwierdziły skuteczność użytej metody NDT w tych badaniach.

Słowa kluczowe

badania nieniszczące, termografia w podczerwieni, ultradźwięki

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