Detecting of defects in polymeric materials using pulsed infrared thermography

• Autorzy: Szczepanik M. , Stabik J. , Wróbel G. , Wierzbicki Ł.
• Języki publikacji: PL

Abstrakty

EN

Purpose: The aim of this paper was to determine the possibility of the use of non-destructive thermographic testing to detect defects in polymeric materials and steel in compare purpose. To use the technique of infrared thermography for non-invasive monitoring of objects the temperature changes during cooling down or heating processes are determined by measuring the infrared emission from the surfaces. In this paper the subsurface defects of specimens made from polymeric materials such as PE, PMMA, laminate experimentally detected and directly displayed by thermographic image are presented. Design/methodology/approach: In this paper the development of a real-time non-invasive technique using pulsed infrared (IR) thermography for measurement of the temperature of polymer materials is described. In this study 16 specimens were heated during specific time using infrared lamp. After that the specimen’s surface temperature was measured during cooling down process by thermovision camera, next defects were detected by means of thermographic images analysis. Findings: The experimental results have demonstrated that radiation heating and thermographic images analysis is effective method for revealing defects in the polymeric materials. Research limitations/implications: It is not possible to detect defects at a long time of heating of researched material because it results in uniform temperature on whole surface of specimen. Practical implications: It is possible to detect subsurface defects in polymeric materials by infrared thermography method. It is possible to see the defects on thermographic image, but the determination of their geometry and position is restricted and not very precise, it requires specific skills and as well as long laborconsuming attempts. The specimen’s area with defect show higher temperature than area without defect also cooling down process proceeds longer in the area with defect.

Słowa kluczowe

PL

badania nieniszczące; termografia; defekt; materiały polimerowe

EN

non-destructive testing; thermography; defect; polymeric materials

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2008
• Tom: Vol. 30, nr 1
• Strony: 29--32
• Opis fizyczny: Bibliogr. 15 poz.

Twórcy

autor

Szczepanik M.

autor

Stabik J.

autor

Wróbel G.

autor

Wierzbicki Ł.

• Department for Processing of Metals and Polymers, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland,

Bibliografia

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