提出了纤维增强复合材料断裂有限元模型,该模型既用弹簧单元考虑了基体与纤维之间的分离,又用接触单元考虑了基体与纤维之间的摩擦,较真实地模拟了纤维增强复合材料的断裂过程.通过有限元计算,预测了基体与纤维之间的界面结合强度对整个复合材料断裂模式的影响.还对强弱两种不同基体弹性模量的材料进行进一步的探讨.对比其他文献,本文中预测结果与真实情况较为吻合.结果表明,对于纤维增强复合材料,不论是强基体还是弱基体,适中的界面结合强度有助于提高其韧性及整体抗拉强度.
参考文献
| [1] | Waiter M E,Ravichandran G,Ortiz M.Computational modeling of damage evolution in unidirectional fiber reinforced ceramic matrix composites[J].Comput Meeh,1997,20(1/2):192-198. |
| [2] | Hashin Z,Rosen B W.The elastic moduli of fiber reinforced materials[J].ASME J App Meeh,1964,31(1),223-232. |
| [3] | Jones J P,Whither J S.Waves at flexibly bonded interface[J].J AppMech,1967,34(4):905-909. |
| [4] | Aehenbach J D,Zhu H.Effect of interracial zone on mechanical behavior and failure of fiber-reinforced composites[J].J Mech Phys Solids,1989,37(3):381-393. |
| [5] | Needleman A.A continuum model for void nucleation by inclusion debonding[J].J Appl Mech,1987,54(3):525-531. |
| [6] | Lissenden C J,Herakovich C T.Numerical meddling of damage development and viscoplasticity in metal matrix composites[J].Comp Meth Appl Mech Eng,1995,126(3/4):289-303. |
| [7] | Nimmer R P,Bankert R J,Russel E S,et al.Micromechanical modeling of fiber/matrix interface effects in transversely loaded SiC/Ti-6-4 metal matrix composites[J].J Comp Teeh Res,1991,13(1):3-13. |
| [8] | 陈浩然,苏晓风,郑长泉.考虑损伤界面的多相复合材料总体平均力学性能的预测[J].计算力学学报,1995,12(1);39-46.Chen Haoran,Su Xiaofeng,Zheng Changquan.The prediction of overall average mechanical properties for multi-phase composites with imperfect interphase[J].Chinese Journal of Computational Mechanics,1995,12(1):39-46. |
| [9] | 陈陆平,潘敬哲,钱令希.复合材料纤维/基体界面失效问题的参变量有限元数值模拟[J].复合材料学报,1993,10(1):71-75.Chen Luping,Pan Jingzhe,Qian Lingxi.The quasi parametric finite element numerical simulation of failure process at fiber/matrix interface of composites[J].Aeta Materiae Compositae Sinica,1993,10(1):71-75. |
| [10] | 叶碧泉,翼旭明.用界面单元法分析复合材料界面力学性能[J].应用数学和力学,1996,17(4):343-348.Ye Biquan,Yi Xuming.Analysis of interphase mechanical behavior with interface element in the composite materials[J].Applied Mathematics and Mechanics,1996,17(4):343-348. |
| [11] | 周储伟,杨卫,方岱宁,内聚力界面单元与复合材料的界面损伤分析[J].力学学报,1999,31(3):117-122.Zhou Chuwei,Yang Wei,Fang Daining.Cohesive interface element and interfacial damage analysis of composites[J].Chinese Journal of Theoretical and Applied Mechanics,1999,31(3):117-122. |
| [12] | 卓家寿,章青.不连续介质力学问题的界面元法[M].北京:科学出版社,2000:260-261. |
| [13] | 刘春俊,张跃,张大海,李仲平.陶瓷基复合材料纤维拔出的有限元研究[J].稀有金属材料与工程,2007,36(S1):766-769.Liu Chunjun,Zhang Yue,Zhang Dahai,Li Zhongping.Finite element simulation of fiber pullout in fiber reinforced ceramic matrix composites[J].Rare Metal Materials and Engineering,2007,36(S1),766-769. |
| [14] | 李旭东,张跃,张凡伟,张大海,李仲平.复合材料界面对其断裂过程的有限元研究[J].宇航材料工艺,2008,28(3):22-25.Li Xudong,Zhang Yue,Zhang Fanwei,Zhang Dahai,Li Zhongping.Finite element research on interface of composites during fracturing[J].Aerospace Materials & Technology,2008,28(3):22-25. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%