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Mathematical Analysis of Deformation Behavior in Hip Joint Composed of Functionally Graded Material and Optimization of Material Composition by GA

Research Project

Project/Area Number 13650071
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Materials/Mechanics of materials
Research InstitutionIwate University

Principal Investigator

SUGANO Yoshihiro  Iwate Univ., Faculty of Engng., Dept. of Mech. Engng., Professor, 工学部, 教授 (90089160)

Project Period (FY) 2001 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥2,900,000 (Direct Cost: ¥2,900,000)
Fiscal Year 2002: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 2001: ¥1,700,000 (Direct Cost: ¥1,700,000)
KeywordsArtificial Hip Joint / Acetabular Cup / Functionally Graded Material / Bioactivity / Stress Relaxation / Material Composition Design / Dynamic Problem / Contact Problem / 不均質性 / 動的応力 / 不均質中空半球 / 材料組成最適化 / 力学的適合性 / 生体適合性 / 遺伝的アルゴリズム / 計算力学
Research Abstract

Functionally graded materials (FGMs) which have been developed as one of light-weight structural materials of the reusable rocket engine and flight body in space-plane, could be also applied to create artificial materials with new properties and functions in the medical field. In this study, a material design is performed for the artificial acetabular cup composed of functionally graded material having the bioactivity able to bond to living bone and the function of stress relaxation. The artificial acetabular cup is assumed to be a non-homogeneous hollow hemisphere with arbitrary non-homogeneous mechanical properties only in the radial direction, and then the static and dynamic stresses and displacements in the hemisphere subjected to axisymmetric static and impulsive loadings on the inner spherical surface, are analyzed mathematically, and numerically by using finite element method. The following three analysis models are used : (a) UHMWPE cup fixated to bone with PMMA bone cement ; ( … More b) UHMWPE cup fixated to bone with interface bioactive bone cement ; and c UHMWPE cup with porous AW-glass coating fixated by bone ingrowth into the pores of the coating layer. Furthermore, the contact stress in the functionally graded material artificial hip joint is analyzed. The wear of UHMWPE is a major obstacle limiting the longevity of implanted artificial hip joint. It is now well known that the wear debris of UHMWPE acetabular cup initiates a cascade of adverse tissue response leading to osteolysis and loosening of the article hip joint. Extending the longevity of total hip joint replacements by the improvement of wear behavior has been the subject of ongoing research in the orthopaedic community. The major factor of the UHMWPE wear is the cyclic contact stress. So, material design based on FEM elastic stress analysis is presented for the artificial acetabular cup composed of functionally graded material having the bioactivity able to bond to living bone and the relaxation function of stress on the contact surface and its neighborhood of the femoral head and the acetabular cup subjected to dynamic loadings. Less

Report

(3 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • Research Products

    (11 results)

All Other

All Publications (11 results)

  • [Publications] 菅野良弘, 西村文仁, 松崎広嘉, 那須川さちえ, 阿波弘治: "生体活性性のある傾斜機能材料製人工股関節の材料設計と動的応力/変形解析"傾斜機能材料論文集. 第15巻. 155-160 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 菅野良弘, 菊地護, 西村文仁, 松崎広嘉: "動的負荷を受ける傾斜機能材料製人工股関節の接触応力解析と材料組成設計(骨頭半径と臼蓋内半径の差が接触応力に及ぼす影響)"傾斜機能材料論文集. 第16巻. 1-6 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 菅野良弘, 西村文仁, 阿波弘治, 那須川さちえ, 森陽彦, 松崎広嘉: "傾斜機能材料からなる人工股関節の動的変形及び応力のFEM解析"日本機械学会東北支部盛岡地方講演会論文集. 011-2. 3-4 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 菅野良弘, 西村文仁, 鬼原寛幸, 松崎広嘉: "傾斜機能材料製人工骨頭ステムの応力/変位のFEM解析と材料組成設計"日本機械学会東北支部八戸地方講演会論文集. 021-2. 61-62 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 菅野良弘, 西村文仁, 松崎広嘉, 菊地護: "骨頭と臼蓋の接触を考慮した傾斜機能材料製人工股関節の動的応力解析と材料組成設計"日本機械学会第15回計算力学講演会論文集. 02-02. 485-486 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Y. SUGANO, F. NISHIMURA, M. MATSUZAKI, S. NASUKAWA, K. AWA: "Material Design and Dynamic Stress / Displacement Analysis of a Bioactive Artificial Hip Joint Composed of Functionally Graded Material"Functionally Graded Materials. Vol.15. 155-160 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Y. SUGANO, M. KIKUCHI, F. NISHIMURA, H. MATSUZAKI: "Contact Stress Analysis in Functionally Graded Material Artificial Hip Joints under Dynamic Load and Material Composition Design (Effect of Difference of Head Radius and Cup Inner Radius on Contact Stress)"Functionally Graded Materials. Vol.16. 1-6 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 菅野良弘, 西村文仁, 松崎広嘉, 名須川さちえ, 阿波弘治: "生体活性性のある傾斜機能材料製人工股関節の材料設計と動的応力/変形解析"傾斜機能材料論文集. 第15巻1号. 155-160 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 菅野良弘, 西村文仁, 鬼原寛幸, 松崎広嘉: "傾斜機能材料製人工骨頭・ステムの応力/変位のFEM解析と材料組成設計"日本機械学会東北支部講演会講演論文集. No.021-2. 61-62 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 菅野良弘, 西村文仁, 松崎広嘉, 菊池 護: "骨頭と臼蓋の接触を考慮した傾余機能材料製人工股関節の動適応力解析と材料組成設計"日本機械学会第15回計算力学講演会講演論文集. No.02-02. 485-486 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 菅野良弘: "生体活性性のある傾斜機能材料製人工股関節の材料設計と動的応力/変形解析"傾斜機能材料論文集(Functionally Graded Materials). Vol.15(未定). (2002)

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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