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基于有限元法分析多孔氧化铝陶瓷支架的抗压性能
Finite Element Analysis of Compressive Properties of Porous Alumina Bioceramic Scaffold
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- DOI:
- 作者:
- 程喆 张木 刘振华
CHENG Zhe;ZHANG Mu;LIU Zhenhua
- 作者单位:
- 陕西工业职业技术学院材料工程学院
School of Materials Engineering,Shaanxi Polytechnic Institute, Xianyang 712100,China
- 关键词:
- 多孔陶瓷 氧化铝 陶瓷支架 有限元分析
porous ceramic alumina bioceramic scaffold finite element analysis
- 摘要:
- 对人体股骨进行生物力学分析,并采用有限元分析多孔氧化铝陶瓷支架的抗压性能。结果表明,对于体重为65kg的人体,其单足站立时股骨受到静应力为7.2 MPa。以7.2 MPa作为植入人体股骨的外载荷,并进行有限元分析,通过与不同孔径、孔隙率单孔排布模型的压缩性能对比分析,获得孔径为620μm,孔隙率为69.7%的A33模型,其压缩性能为最优模型。The biomechanical analysis of human femur was carried out, and the compressive properties of porous alumina ceramic scaffolds were analyzed by finite element method. The results show that the static stress of femur is 7.2 MPa when the body weight is 65 kg. Taking 7.2 MPa as the external load of femur implantation, finite element analysis is carried out.The A33 model with 69.7% porosity and 620 microns diameter is obtained through the comparison and analysis of the compression performance with the single-hole configuration model with different pore diameters and porosity.