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

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Finite Element Analysis for Fracture Criterion of PolyJet Materials

PolyJet 적층재료의 파괴기준 설정을 위한 유한요소해석

  • Kim, Dong Bum (Graduate School of Precision Mechanical Engineering, Chungbuk National University) ;
  • Lee, Geun Tae (Graduate School of Precision Mechanical Engineering, Chungbuk National University) ;
  • Lee, In Hwan (School of Mechanical Engineering, Chungbuk National University) ;
  • Cho, Hae Yong (School of Mechanical Engineering, Chungbuk National University)
  • 김동범 (충북대학교 대학원 정밀기계공학과) ;
  • 이근태 (충북대학교 대학원 정밀기계공학과) ;
  • 이인환 (충북대학교 기계공학부) ;
  • 조해용 (충북대학교 기계공학부)
  • Received : 2015.06.16
  • Accepted : 2015.06.18
  • Published : 2015.08.31
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Abstract

PolyJet technology is an additive manufacturing (AM) technology commonly used for modeling, prototyping, and production applications. It is one of the techniques used for 3D printing. The PolyJet technique is a process that joins materials to fabricate a product from 3D CAD data in a layer-by-layer manner. The orientation of a layer can affect the mechanical properties of the product manufactured by the PolyJet technique because of its anisotropy. In this paper, tensile and shearing tests of specimens were developed with the PolyJet technique in order to study the mechanical properties according to the orientation of a layer. The mechanical properties of the specimens were determined on the basis of true stress-strain curves from tensile and shearing tests. In addition, the tensile and shearing tests were simulated under the same conditions as those of experiment, and the experiment and simulated results were compared. Through this study, the fracture criteria could be established.

Keywords

References

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