摘要
文中根据细编穿刺C/C复合材料的编织特点,建立了相应的几何单胞,通过有限元方法,对其施加周期性边界条件,分别利用纤维束的Hashin和Hoffman强度准则结合基体最大应力破坏准则计算出材料在不同方向的拉伸强度,并与相关文献实验结果进行了对比,分析了材料的渐近损伤过程。
The corresponding geometric single cell is established based on the fine plait puncture woven characteristics ofC/C composites. Periodic boundary conditions are exerted on the geometric single cell using finite element method. Thetensile strength of the material in a different direction is calculated based on Hashin and Hoffman strength criterion of thefiber bundle, and the maximum stress failure criteria of the matrix. Compared with the experimental results in the relatedliterature, the progressive damage process of the material is analyzed.
出处
《机械工程师》
2016年第12期50-53,共4页
Mechanical Engineer
关键词
C/C复合材料
渐近损伤
强度准则
有限元法
强度预报
C/C composites
progressive damage
strength criterion
finite element method
strength prediction
