Failure Analysis of Alumina-Alumina Hip Prosthesis by 3-Dimensional Simulation
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- Todo Mitsugu
- Research Institute for Applied Mechanics, Kyushu University
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- Mawatari Masaaki
- Department of Orthopedic Surgery, Saga University
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- Hotokebuchi Takao
- Department of Orthopedic Surgery, Saga University
Bibliographic Information
- Other Title
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- 3次元シミュレーションによるアルミナ‐アルミナ摺動面をもつ人工股関節の破損解析
- 3次元シミュレーションによるアルミナ-アルミナ摺動面をもつ人工股関節の破損解析
- 3ジゲン シミュレーション ニ ヨル アルミナ アルミナ シュウドウメン オ モツ ジンコウ コカンセツ ノ ハソン カイセキ
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Abstract
Kyocera ABS system, a ceramics-on-ceramics type hip prosthesis, has been prohibited due to consecutive accidents such as the dissociation of the UHMWPE liner and the fracture of the alumina inlay. It has been presumed that loosening of the locking system connecting the metal shell and the liner is the primary mechanism of the liner dissociation. In this study, the finite element analysis (FEA) of the ABS system was conducted to assess the loosening mechanism qualitatively and quantitatively. The FEA results showed that very high stress concentration was generated at the locking grooves of the liner, indicating severe damage was likely formed under high stress condition. The FEA including a damage model was also performed to simulate such damage formation at the locking grooves. The FEA result exhibited that the four grooves were severely damaged under tensile and compression loadings, resulting in the loosening of the locking system. It was thus confirmed that the dissociation of the liner was initiated by those damage formation at the grooves.
Journal
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- Journal of the Japan Society of Powder and Powder Metallurgy
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Journal of the Japan Society of Powder and Powder Metallurgy 55 (5), 336-340, 2008
Japan Society of Powder and Powder Metallurgy
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Details 詳細情報について
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- CRID
- 1390001206309192192
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- NII Article ID
- 10021173193
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- NII Book ID
- AN00222724
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- COI
- 1:CAS:528:DC%2BD1cXms1Cqtb8%3D
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- ISSN
- 18809014
- 05328799
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- NDL BIB ID
- 9531574
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed