Research of Multi-Scale Mechanics Behavior in Hierarchical Porous Bio-Ceramics
Research of Multi-Scale Mechanics Behavior in Hierarchical Porous Bio-Ceramics
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多级多孔生物陶瓷多尺度力学行为研究
DOI：
10.4028/www.scientific.net/amm.37-38.964
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发表时间：
2010-11
期刊：
影响因子：
--
通讯作者：
Nan Zhan
中科院分区：
文献类型：
--
作者：
Jinlong Chen;Qian Liu;Nan Zhan
本文研究了不同尺度下具有多级结构的多孔生物陶瓷的微观和宏观结构。结果表明，随着微结构中孔隙率的增加，宏观结构中固体材料的有效性能增加，且受孔隙排列方式的影响。然后针对制备过程中容易引入裂纹等缺陷，在宏观结构层次上，基于扩展有限元法原理，对含裂纹的多孔生物陶瓷进行研究，得到了不同孔隙率下的裂纹路径和临界载荷预测。
This paper studied on micro/macro-structure of porous bio-ceramics with hierarchical structures in different scales. Established the connection between the micro and macro pores, results show that with the increment of porosity in micro-structure, the solid material effective property in the macro-structure increased and it is influenced by the porous arrangement. Then in the preparation process, defects such as cracks are easy to be introduced, at the macro-structure level, based on the principle of extended finite element method, studied of porous bio-ceramics containing cracks, the prediction of crack paths and critical loads were obtained with different porosities.