Prospective NDT methods for assessing the quality of polymer composites under production conditions
Journal Title: Archives of Materials Science and Engineering - Year 2017, Vol 2, Issue 87
Abstract
Purpose: Analysis of non-destructive testing systems polymer composite in terms of current solutions in the area of methodology and devices. Analysis of contemporary standards for non-destructive testing of polymer composites established by ASTM. Analysis of Flir ONE camera capabilities in non-destructive testing composite carbon-epoxy composites. Design/methodology/approach: The thermal imaging tests of the carbon-epoxy composite discontinuity were carried out using a thermal imaging camera and Flir One accessory for an iOS phone. The tests were performed on carbon-epoxy composite samples measuring 100x100 mm. In order to simulate the discontinuity in a sample by the Resin Transfer Molding (RTM) method, a 30x30 mm PTFE film was inserted between the reinforcement layers. The thickness of the sample with discontinuity was 2 mm. Water was added to the selected sample sites. Samples were placed on a 50°C heated plate to record thermal images and thermal images combined with visual contours of samples with simulated defects. Area Calculator – SketchAndCalc Icalc, Inc. was used to describe the size and location of the defects. Findings: As a result of the tests, the use of the Flir One thermal imaging device in epoxycarbon composite discontinuity tests has been demonstrated, and a methodology has been proposed to measure geometrical features of defects. Research limitations/implications: The description of welded joint structure and mechanical properties was based on welding toughened steels by using an innovative welding method and a filler that has been proposed. Practical implications: The development of thermal imaging studies of polymer composite discontinuity using the Flir One thermal imaging camera and accessory with iOS opens up the possibility of conducting a basic inspection of composite materials in production plants, and even for simplicity – also in small laboratories. Originality/value: In order to improve the quality of imaging of small items using the Flir One mobile camera, the use of cheap and readily available lenses used in laser optics has been tested positively.
Authors and Affiliations
J. Nowacki, N. Sieczkiewicz
Keywords
Related Articles
- EP ID EP246707
- DOI 10.5604/01.3001.0010.7447
- Views 64
- Downloads 0
Application of the Finite Elements Method for computer simulation of properties of surface layers
Purpose: The work presents the application of the Finite Elements Method in a computer simulation whose aim is to determine the properties of PVD and CVD coatings on various substrates and to optimise parameters of a las...
Visualisation of ankle injury using a thermal imaging camera
Purpose: This paper is dedicated to the study of the impact of multiple ankle injuries onblood flow in the lower limb.Design/methodology/approach: The study was performed using a thermal imagingcamera which by differenti...
Formation of hexavalent chromium in Cr-containing steelmaking slag
Purpose: In present work, the mineral phases in chromium-containing slags were identified, and the formation mechanisms of Cr(VI) in Cr2O3-containing mineral phases were discussed. Design/methodology/approach: In stee...
Temperature changes influenced by different types of light curing units during polymerization of resin-based dental composite materials
Purpose: of this study was to evaluate the influence of LCU type on temperature changesduring polymerization of two resin-based composites with different matrices (silorane-basedand methacrylate-based).Design/methodology...
Analysis of the microstructure and properties of T92 steel after long-term service
Purpose: The purpose of the investigation was to determine and analyse the changes in the microstructure and mechanical properties of the T92 steel after service in creep conditions of the following parameters: temperatu...