基于一阶剪切变形理论,zig-zag变形假定和von Karman大挠度理论,提出了含不同形状面\芯开裂损伤复合材料夹层板在受压缩载荷作用下的开裂前缘能量释放率研究的有限元分析方法,研究了在轴向应变作用下,具有面\芯开裂损伤复合材料夹层板的分层断裂力学行为,并讨论了在大变形下几何非线性对能量释放率分布规律的影响.通过典型算例分析表明:具有面\芯开裂损伤复合材料夹层板的分层前缘能量释放率的大小和分布规律与开裂面积、开裂形状和受载方向有关.
参考文献
| [1] | Cantwell W J, Scudamore R, Scudamore J, et al. Davies Interfacial fracture in sandwich laminates [J]. Composites Science and Technology, 1999, 59(14): 2079-2085. |
| [2] | Papanicolaou G C, Bakos D. Effect of treatment conditions on the mode I delamination fracture toughness of sandwich structures [J]. Journal of Composite Materials, 1995, 29(17): 2295-2316. |
| [3] | Hassan M, Syful I, Leif C, Kardomateas G, et al. Buckling response of sandwich composites: Effect of core density and implanted interface cracks [A]. 13th International Conference on Composite Materials [C]. Scientific and Technical Documents Publishing House, 2001. ID 1452, 407-408. |
| [4] | Chen J Y. Application of decohesion model in predicting progressive delamination of stiffened fibre-composite panel and repaired sandwich panel [A]. 13th International Conference on Composite Materials [C]. Scientific and Technical Documents Publishing House, 2001. ID 1647, 416-417. |
| [5] | 白瑞祥, 陈浩然. 含面/芯开裂或脱粘损伤复合材料夹层板在大变形下的能量释放率研究 [A]. 工程与科学中的计算力学--中国计算力学大会会议文集 [C]. 北京:北京大学出版社,2001.207-211. |
| [6] | 陈浩然, 白瑞祥. 含损伤复合材料夹层板剩余压缩强度的数值分析 [J]. 大连理工大学学报, 2001, 41(4): 404-411. |
| [7] | Whitcomb J D. Three-dimensional analysis of a postbuckled embedded delamination [J]. Journal of Composite Materials, 1989, 23(9): 862-889. |
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%