Journal of the Korean Society of Clothing and Textiles (한국의류학회지)

The Korean Society of Clothing and Textiles (한국의류학회)
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Structure Design of Fall Impact Protection Pad Using 3D Printing Technology and Comparison of Characteristics According to Filament Material

3D 프린팅 기술을 활용한 낙상충격 보호패드 구조설계 및 필라멘트 소재에 따른 특성 비교

  • Park, Jung Hyun (Research Institute of Ecology for the Elderly, Pusan National University) ;
  • Jung, Hee-Kyeong (Research Institute of Ecology for the Elderly, Pusan National University) ;
  • Lee, Jeong Ran (Dept. of Clothing & Textiles, Pusan National University/Research Institute of Ecology for the Elderly, Pusan National University)
  • 박정현 (부산대학교 노인생활환경연구소) ;
  • 정희경 (부산대학교 노인생활환경연구소) ;
  • 이정란 (부산대학교 의류학과/부산대학교 노인생활환경연구소)
  • Received : 2017.07.24
  • Accepted : 2017.08.23
  • Published : 2017.10.31
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Abstract

This study uses 3D printing technology to design and fabricate a fall impact protection pad with a spacer fabric structure. The design of the pads consists of hexagonal three-dimensional units connected in a honey-comb shape; in addition, the unit consists of a surface layer and a spacer layer. Protect pads were designed as either a hexagonal type or diamond type according to the surface layer structure; subsequently, a spacer filament was also designed as the most basic I-shape type. Designed pads were printed using four types of flexible filaments to select suitable material for a fall impact protection pad. Impact protection performance and bending stiffness were evaluated for the eight type of pad outputs. As a result of the impact protection performance evaluation, when the force of 6,500N was applied, the force passed through the pad was in the range of 1,370-2,132N. FlexSolid$^{(R)}$ and Skinflex$^{TM}$ showed good protection performance and cubicon flexible filament showed the lowest protection. NinjaFlex$^{(R)}$ was found to be the most flexible in the bending stiffness evaluation.

Keywords

References

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