Stress Evaluation of Chondrocyte Cell by Using Multi-scale Finite Element Method and Smoothed Particle Hydrodynamics Method
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- NAKAHARA Kaito
- Graduate school of Eng, Doshisha Univ.
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- TOMITA Yoshihiro
- Doshisha Univ
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- MORITA Yusuke
- Doshisha Univ
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- NNAKAMACHI Eiji
- Doshisha Univ
Bibliographic Information
- Other Title
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- マルチスケール有限要素法とSPH法を用いた軟骨細胞の応力解析
Abstract
<p>The morphology and function of articular cartilage tissue is regenerated through the metabolic activity of cells stimulated by the mechanical loading. In this study, a biphasic multi-scale analyses scheme is adopted for stress evaluation occurred in the chondrocyte cell. The dynamic-explicit finite element (FE) method was employed for the solid phase and the smoothed particle hydrodynamics (SPH) method was used for the fluid phase. A macro-scale 3D human knee joint FE model was constructed based on magnetic resonance (MR) cross sectional images. Further, we derived the Representative volume element (RVE) based on the Multiphoton microscopy (MPM) observation to build a micro-scale FE model of cartilage tissue. We characterized three layers in the articular cartilage tissue. Parameters of the visco-anisotropic hyperelastic constitutive law and SPH models were determined using experimental results. Biphasic multi-scale FE and SPH analyses were carried out under the maximum loading condition in the normal walking motion. As a result, large flow velocity was observed around chondrocyte in the surface layer. The highest hydrostatic and shear stress occurred on chondrocyte in the surface layer. Numerical results shows a good agreement with experimental results.</p>
Journal
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- The Proceedings of the Materials and Mechanics Conference
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The Proceedings of the Materials and Mechanics Conference 2016 (0), GS-45-, 2016
The Japan Society of Mechanical Engineers
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Keywords
Details 詳細情報について
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- CRID
- 1390001205871493504
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- NII Article ID
- 130007120296
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- ISSN
- 24242845
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed