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http://dx.doi.org/10.5850/JKSCT.2022.46.6.1074

Characterization of 3D Printed Wrist Brace with Various Tilting Angles of Re-entrant Pattern Using Thermoplastic Elastomer  

Ye-Eun Park (Dept. of Fashion Design, Dong-A University)
Hyejin Lee (Dept. of Fashion Design, Dong-A University)
Imjoo Jung (Dept. of Fashion and Textiles, Dong-A University)
Sunhee Lee (Dept. of Fashion Design, Dong-A University)
Publication Information
Journal of the Korean Society of Clothing and Textiles / v.46, no.6, 2022 , pp. 1074-1087 More about this Journal
Abstract
This study reports an optimization of a 3D printed wrist brace (WB) for various tilting angles (0°, 45°, 90°) of the re-entrant (RE) pattern and thickness (2 mm, 4 mm) using thermoplastic polyurethane (TPU) filaments and thermoplastic elastomer (TPE) filaments. The actual printing time, weight, Poisson's ratio, and tensile property of the manufactured samples were analyzed. The results confirmed that the actual printing time and weight increased with increasing thickness, regardless of the filament type. All tilting angles of the WB showed a negative Poisson's ratio (NPR), the largest of which appeared at 90°. The results of the tensile property analysis showed that a 90° tilting angle also had the largest value of elongation and stress. From these results, we conclude that the most suitable wrist brace is one in which the actual printing time is low, the weight is minimized to a thickness of 2 mm, and the tilting angle of the RE pattern is 90° for good shock absorption. The choice of filaments may be decided upon according to the user's preference, since the TPU is stiff and the TPE is elastic.
Keywords
3D printed wrist brace; Thermoplastic elastomer (TPE); Thermoplastic polyurethane (TPU); Auxetic re-entrant pattern; Mechanical property;
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Times Cited By KSCI : 9  (Citation Analysis)
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