한국기계가공학회지 (Journal of the Korean Society of Manufacturing Process Engineers)

  • 제19권3호
  • /
  • Pages.1-7
  • /
  • 2020
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  • 1598-6721(pISSN)
  • /
  • 2288-0771(eISSN)
한국기계가공학회 (The Korean Society of Manufacturing Process Engineers)
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FFF 방식으로 제작된 PLA의 열화에 따른 선형탄성 및 초탄성 모델의 비교에 관한 연구

A Comparative Study of the Linear-elastic and Hyperelastic Models for Degradation of PLA Prepared using Fused Filament Fabrication

  • 최나연 (동의대학교 신소재공학과) ;
  • 신병철 (동의대학교 신소재공학과) ;
  • 장성욱 (동의대학교 자동차공학과)
  • 투고 : 2020.01.21
  • 심사 : 2020.02.16
  • 발행 : 2020.03.31
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초록

Fused filament fabrication (FFF) is a process extruding and stacking materials. PLA materials are one of the most frequently used materials for FFF method of 3D printing. Polylactic acid (PLA)-based materials are among the most widely used materials for FFF-based three-dimensional (3D) printing. PLA is an eco-friendly material made using starch extracted from corn, as opposed to plastic made using conventional petroleum resin; PLA-based materials are used in various fields, such as packaging, aerospace, and medicines. However, it is important to analyze the mechanical properties of theses materials, such as elastic strength, before using them as structural materials. In this study, the reliability of PLA-based materials is assessed through an analysis of the changes in the linear elasticity of these materials under thermal degradation by applying a hyperelastic analytical model.

키워드

참고문헌

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피인용 문헌

  1. Classifying Thermal Degradation of Polylactic Acid by Using Machine Learning Algorithms Trained on Fourier Transform Infrared Spectroscopy Data vol.10, pp.21, 2020, https://doi.org/10.3390/app10217470
  2. Assessment of the Suitability of Elastomeric Bearings Modeling Using the Hyperelasticity and the Finite Element Method vol.14, pp.24, 2021, https://doi.org/10.3390/ma14247665