Indentation Influence Factors and Viscoelastic Parameters of Articular Cartilage
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概要
- 論文の詳細を見る
The indentation influence factors of human articular cartilage are investigated using the mechanical testing and finite element analysis. Viscoelastic behavior of the articular cartilage is measured by newly indentation apparatus having a circular plane-ended indenter. The viscoelastic parameters are estimated by applying the nonlinear least squares method (Gauss-Newton method) to creep curves obtained from the indentation tests. Three element solid model is finely approximated a viscoelastic characteristics of the articular cartilage. The viscoelastic parameters increased extremely with a decrease of indenter radius. These phenomena are explained by a stress analyses using the linear FEM for an axially-symmetric contact problem. Furthermore, the applicability of this inverse analytics to such indentation problem is discussed. It is shown that the indenter radius and applying load being suitable to physiologically reasonable levels of human articular geometry are 1mm and 4.9N, respectively.
- 東海大学の論文
著者
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TOMATSU Taisuke
Department of Orthopedic Surgery, Institute of Rheumatology, Tokyo Women's Medical University
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YASUI Yoshiaki
Department of Prime Mover Engineering, School of Engineering
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MORIYAMA Hiroyuki
Department of Prime Mover Engineering, School of Engineering
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Tomatsu Taisuke
Department Of Orthopaedic Surgery Institute Of Rheumatology Tokyo Women's Medical University
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Tomatsu Taisuke
Department Of Orthopaedic Surgery School Of Medecine
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Yasui Yoshiaki
Department Of Prime Mover Engineering
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Yasui Yoshiaki
Department Of Physics Hiroshima University
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KIKUGAWA Hisao
Department of Orthopaedic Surgery, School of Medecine
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Kikugawa Hisao
Department Of Orthopaedic Surgery Schhol Of Medicine
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Kikugawa Hisao
Department Of Mechanical Engineering School Of Engineering Ii
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Kikugawa Hisao
Department Of Orthopaedic Surgery Tokai University
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Kikugawa Hisao
Department Of Bio-medical Engineering School Of Engineering Tokai University
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Moriyama Hiroyuki
Department Of Prime Mover Engineering
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