Abstract
Nowadays, non-destructive testing (NDT) is frequently replacing destructive techniques in determining the properties of materials. In this study, defects in Kenaf/epoxy composite materials were detected using an inyyfrared (IR) thermal imaging technique, which is one of the most practical non-destructive techniques currently applied. Kenaf bast fibres were used to fabricate composite materials with epoxy resin as a binding material. The composites were manufactured using a manual lay-up process. The thermography analysis of the IR camera were verified by optical microscope and scanning electron microscope (SEM) investigations. The defect detection accuracy of this technology is 95%.
Kurzfassung
Heute ersetzen zerstörungsfreie Prüfverfahren vielfach zerstörende Technologien, um die Eigenschaften von Materialien zu bestimmen. In der diesem Beitrag zugrunde liegenden Studie wurden Fehler in Kenaf-Epoxid-Kompositmaterialien mittels Thermografie bestimmt, die eine der am häufigsten in der Praxis angewendeten Verfahren darstellt. Um die Kompositmaterialien herzustellen, wurden Kenaf-Bastfasern mit Epoxidharz als Bindungsmaterial verwendet. Die Komposite wurden in einem manuellen Laminierverfahren gefertigt. Die thermografischen Analysen der IR-Kamera wurden mittels Lichtmikroskopie und Rasterelektronenmikroskopie (REM) verifiziert. Die Fehlererkennungsgenauigkeit dieser Technologie liegt bei 95%.
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