Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Tomography-based Finite Element Analysis for the Mechanical Behavior of Porous Titanium Manufactured by a Space Holder Method

Space holder 방법으로 제조된 다공질 타이타늄의 기계적 성질에 대한 Computed-Tomography를 이용한 유한요소해석

  • Lee, Dong Jun (Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH)) ;
  • Ahn, Dong-Hyun (Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH)) ;
  • Lee, Byounggab (Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH)) ;
  • Jeong, Jiwon (Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH)) ;
  • Oh, Sang Ho (Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH)) ;
  • Lee, Chong Soo (Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH)) ;
  • Kim, Hyoung Seop (Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH))
  • 이동준 (포항공과대학교 신소재공학과) ;
  • 안동현 (포항공과대학교 신소재공학과) ;
  • 이병갑 (포항공과대학교 신소재공학과) ;
  • 정지원 (포항공과대학교 신소재공학과) ;
  • 오상호 (포항공과대학교 신소재공학과) ;
  • 이종수 (포항공과대학교 신소재공학과) ;
  • 김형섭 (포항공과대학교 신소재공학과)
  • Received : 2013.08.01
  • Accepted : 2013.08.19
  • Published : 2013.10.28
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Abstract

In this study, porous titanium samples were manufactured by space holder methods using two kinds of urea and sodium chloride space holders. Three-dimensional pore structures were obtained by a computed-tomography (CT) technique and utilized for finite element analysis in order to investigate the mechanical properties. The CT-based finite element analyses were in better agreement with the experimental results than unit cell model-based analyses. Both the experimental and CT-based results showed the same tendency that the elastic modulus decreased with increasing the porosities. The total porosity of the bulk body plays a key role in determining the elastic modulus of porous materials.

Keywords

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