Displacement and Stress Analysis around the Artificial Acetabular Cup in a Total Hip Replacement
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概要
- 論文の詳細を見る
In order to improve the service life of the artificial acetabular cup in a total hip replacement, it is important to determine the best material and design, and to assess the mechanical behavior around the cup. In this study, electronic speckle interferometry (ESPI) and the two-dimensional finite element method (FEM) are employed to investigate the mechanical behavior. The influence of the cancellous bone and cup thickness on mechanical behavior around the cup was investigated. Good agreement of the cup model was found between the ESPI measurements and FEM predictions. The following results were obtained. (1) Cancellous bone with a porous structure can be measured by the ESPI method. (2) There are discontinuities of the displacement distribution in the transverse direction in each boundary region of the cup, bone cement and cancellous bone. (3) The maximum shear stress exists in the boundary region of the cup and bone cement.
- 一般社団法人 日本機械学会の論文
著者
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ABO Masayoshi
Department of Mechanical Engineering and System Engineering, Graduate School of Engineering, Univers
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KAKUNAI Satoshi
Department of Mechanical Engineering and System Engineering, Graduate School of Engineering, Univers
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Sakamoto Tohru
Department Of Otolaryngology Hokkaido University
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Tachibana Hiroyuki
Department Of Gastroenterology Tokyo Medical University Hospital
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TACHIBANA Hiroyuki
Department of Mechanical and System Engineering, Graduate School of Engineering, University of Hyogo
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IKEDA Daisaku
Mizuho Ikakogyo Co., LTD
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FUJIWARA Hiroo
Mizushima Central Hospital
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KAKUNAI Satoshi
Department of Mechanical and System Engineering, Graduate School of Engineering, University of Hyogo
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SAKAMOTO Tohru
Department of Mechanical and System Engineering, Graduate School of Engineering, University of Hyogo
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ABO Masayoshi
Department of Mechanical and System Engineering, Graduate School of Engineering, University of Hyogo
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