Numerical modeling for the mechanical behaviors of porous, multi-phase nanocrystalline ceramics

作者：Zhou Jianqiu^*; Zhu Rongtao; Li Yuanling; He Xiaohua; Li Zhenghui

来源：Rare Metal Materials and Engineering, 2007, 36: 106-109.

• nanocrystalline ceramics
• elastic modulus
• yield strength

A calculation method is firstly proposed to describe the mechanical behavior of an individual phase of multi-phase nanocrystalline ceramics, and then Budiansky's self-consistent method is applied to calculate the elastic modulus of porous, multi-phase nanocrystalline ceramics. Further, the established method is extended to describe the stress-strain relations with small plastic deformation, and then the yield strength (sigma(0.2)) of porous, multi-phase nanocrystalline ceramics can be determined. In a word, the predictions are in good agreement with the results in the literature.

• 出版日期2007-8
• 单位南京工业大学