研究了扩散控制的界面滑动对纤维复合材料的横向剪切变形行为的影响.基体和纤维为弹性的,而界面滑动速率正比于界面剪应力.作为辅助问题,首先考虑了单根纤维嵌在无限大基体的特殊情形,导出了纤维和基体中随时间变化的应力场.其次,应用平均场方法给出了任意时刻复合材料的总体响应.数值结果表明复合材料的横向剪切模量随着界面滑动的发生将显著减小.
参考文献
| [1] | Piggott M R. Debonding and friction at fiber-polymer interfaces, I: criteria for failure and sliding [J]. Comp Sci Tech, 1987, 30(3): 295-306. |
| [2] | Steif P S, Dollar A. Longitudinal shearing of a weakly bonded fiber composite [J]. J Appl Mech, 1988, 55(3):618-623. |
| [3] | Teng H, Agah-Tehrami A. Interfacial slippage of a unidirectional fiber composite under longitudinal shear [J]. J Appl Mech, 1992, 59(3): 547-551. |
| [4] | Zhou L M, Mai Y W. Analysis of fiber frictional sliding in fiber bundle pushout test [J]. J Am Cera Soc, 1994, 77(8): 2076-2080. |
| [5] | Liu H Y, Mai Y W. An appraisal of composite interface mechanics models and some challenging problems [J]. Compos Interfaces, 1999, 6(4): 343-362. |
| [6] | Raj R, Ashby M F. On grain boundary sliding and diffusional creep [J]. Metall Trans, 1971, 2(9):1113-1127. |
| [7] | Yoda S, Kurihara N, Wakashima K, et al. Thermal cycling-induced deformation of fibrous composites with particular reference to the tungsten-copper system [J]. Metall Trans A, 1978, 9(9):1229-1236. |
| [8] | Funn J V, Dutta I. Creep behavior of interfaces in fiber reinforced metal-matrix composites [J]. Acta Mater, 1999, 47(1):149-164. |
| [9] | Mori T, Tanaka K. Average stress in matrix and average energy of materials with misfitting inclusions [J]. Acta Metall, 1973, 21(5):571-574. |
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%