Online strain measurement during blown film extrusion using digital image correlation / Komethi Muniandy ... [et al.]

Muniandy, Komethi and Mohamad Ariff, Zulkifli and Abu Bakar, Azhar (2018) Online strain measurement during blown film extrusion using digital image correlation / Komethi Muniandy ... [et al.]. Journal of Mechanical Engineering (JMechE), SI 5 (5). pp. 154-165. ISSN 18235514


Development of strain during blown film extrusion process was monitored online on the surfaces of high density polyethylene (HDPE) film. The displacement and strain were measured using Digital Image Correlation (DIC) method by following the digital or pixel changes of the marker during the film stretching process. Two different methods of creating random pattern on the surface of the blowing film were studied using a permanent black marker pen ink and grey spray paint prior to the measurement. The reliability of DIC was evaluated by verifying the measured strains and displacement results with those obtained using conventional method. Results showed that black marker pen ink was suitable for creating a random pattern on the blown film surface during extrusion process. The strain values from both conventional and DIC methods were comparable and therefore, proved that the DIC method was reliable enough to be used in a dynamic process such as blown film extrusion process.


Item Type: Article
Email / ID Num.
Muniandy, Komethi
Mohamad Ariff, Zulkifli
Abu Bakar, Azhar
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TK Electrical engineering. Electronics. Nuclear engineering > Scanning systems
Divisions: Universiti Teknologi MARA, Shah Alam > Faculty of Mechanical Engineering
Journal or Publication Title: Journal of Mechanical Engineering (JMechE)
UiTM Journal Collections: UiTM Journal > Journal of Mechanical Engineering (JMechE)
ISSN: 18235514
Volume: SI 5
Number: 5
Page Range: pp. 154-165
Keywords: Blown Film, Digital Image Correlation, Displacement, Strain
Date: 2018
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