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http://dx.doi.org/10.14775/ksmpe.2020.19.03.001

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

Choi, Na-Yeon (Advanced Materials Engineering, Dong-Eui University)
Shin, Byoung-Chul (Advanced Materials Engineering, Dong-Eui University)
Zhang, Sung-Uk (Automotive Engineering, Dong-Eui University)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.19, no.3, 2020 , pp. 1-7 More about this Journal
Abstract
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.
Keywords
Fused Filament Fabrication(FFF); Polylactic acid(PLA); Linear Elastic Model; Hyper Elastic Model; Thermal Degradation;
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Times Cited By KSCI : 4  (Citation Analysis)
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