Article
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Preserved in Portico This version is not peer-reviewed
Pulse Ultrasonic Cure Monitoring of the Pultrusion Process
Version 1
: Received: 23 August 2018 / Approved: 23 August 2018 / Online: 23 August 2018 (15:10:16 CEST)
A peer-reviewed article of this Preprint also exists.
Scholle, P.; Sinapius, M. Pulse Ultrasonic Cure Monitoring of the Pultrusion Process. Sensors 2018, 18, 3332. Scholle, P.; Sinapius, M. Pulse Ultrasonic Cure Monitoring of the Pultrusion Process. Sensors 2018, 18, 3332.
Abstract
This article discusses the results of a series of experiments on pulse ultrasonic cure monitoring of carbon fiber reinforced plastics applied to the pultrusion process. The aim of this study is to validate the hypothesis that pulse ultrasonic cure monitoring can be applied a) for profiles having small cross sections such as 7x0.5 mm and b) within the environment of the pultrusion process. Ultrasonic transducers are adhesively bonded to the pultrusion tool as actuators and sensors. The time-of-flight and the amplitude of an ultrasonic wave are analyzed to deduce the current curing state of the epoxy matrix. The experimental results show that ultrasonic cure monitoring is indeed applicable even to very thin cross sections. However, significant challenges can be reported when the techniques are used during the pultrusion process.
Keywords
CFRP; pulse ultrasonic method; cure monitoring
Subject
Chemistry and Materials Science, Polymers and Plastics
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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