Publication: Additive Manufactured Strain Sensor Using Stereolithography Method with Photopolymer Material
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Date
2023-02-01
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Abstract
As a result of the developments in additive manufacturing (AM) technology, 3D printing is
transforming from a method used only in rapid prototyping to a technique used to produce large-scale
equipment. This study presents the fabrication and experimental studies of a 3D-printed strain sensor
that can be used directly in soft applications. Photopolymer-based conductive and flexible ultraviolet
(UV) resin materials are used in the fabrication of the sensor. A Stereolithography (SLA)-based printer
is preferred for 3D fabrication. The bottom base of the sensor, which consists of two parts, is produced
from flexible UV resin, while the channels that should be conductive are produced from conductive
UV resin. In total, a strain sensor with a thickness of 2 mm was produced. Experimental studies were
carried out under loading and unloading conditions to observe the hysteresis effect of the sensor.
The results showed a close linear relationship between the strain sensor and the measured resistance
value. In addition, tensile test specimens were produced to observe the behavior of conductive and
non-conductive materials. The tensile strength values obtained from the test results will provide
information about the sensor placement. In addition, the flexible structure of the strain sensor will
ensure its usability in many soft applications.
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Mühendislik ve Teknoloji, Engineering and Technology, Mühendislik, Bilişim ve Teknoloji (ENG), Engineering, Computing & Technology (ENG), additive manufacturing, photopolymer, strain sensor, soft application, stereolithography, 3D printing
Citation
Ertugrul I., Ulkir O., Ersoy S., Ragulskis M., "Additive Manufactured Strain Sensor Using Stereolithography Method with Photopolymer Material", POLYMERS, cilt.15, sa.4, ss.991-1004, 2023