|
|
- 2016
曲率参数对纤维增强树脂基复合材料构件固化压实的影响
|
Abstract:
根据有效应力准则和达西定律,结合曲线坐标系,构建了曲面复合材料构件固化过程中的树脂流动和纤维压实控制方程;建立了基于AS4/3501-6纤维树脂体系的层合板仿真模型,并将分析结果与实验数据对比,验证了模型的有效性;研究了曲率参数对复合材料构件非等温固化压实的影响规律,比较和分析了曲率参数与厚度和压力参数耦合作用下对树脂流动行为的影响机制。结果表明:构件曲率参数会对树脂分布产生一定影响,曲率越大,树脂分布的非均匀性越大;曲率参数的作用表达受到厚度与压力参数的影响,当厚度与压力较小时,对曲率的影响不明显。 Based on the effective stress principle, Darcy's law and the curvilinear coordinate system, resin flow and fiber compaction control equation of curved laminated composite structures were developed. The laminate simulation model based on AS4/3501-6 fiber resin system was established and the validity of the model was verified by comparing analytical results with experiment data. The research had been carried on the rule about the influence of curvature parameters on the consolidation of composite structures under non-isothermal conditions, and the influence mechanism of the resin flow behavior which was affected by curvature-thickness and curvature-pressure coupling parameters was compared and analyzed. The results show that the curvature parameter of structures can influence the distribution of resin, and the bigger the curvature is, the less uniform the distribution of resin is. The expression of effect of curvature parameter is affected by the parameters of thickness and pressure, and the effect on the curvature is minor when thickness and pressure is small. 国家"973"计划(2014CB046500)
| [1] | GANAPATHI A S, SUNIL C J, CHEN Z. Simulation of bleeder flow and curing of thick composites with pressure and temperature dependent properties[J]. Simulation Modelling Practice and Theory, 2013, 32(1):64-82. |
| [2] | SPRINGER G S. Resin flow during the cure of fiber reinforced composites[J]. Journal of Composite Materials, 1982, 16(5):400-410. |
| [3] | GUTOWSKI T G, MORIGAKI T, CAI Z. The consolidation of laminate composites[J]. Journal of Composite Materials, 1987, 21(2):172-188. |
| [4] | DAVE R, KARDOS J L, DUDUKOVIC M P. A model for resin flow during composite processing:Part 1-General mathematical development[J]. Polymer Composites, 1987, 8(1):29-38. |
| [5] | DAVE R, KARDOS J L, DUDUKOVIC M P. A model for resin flow during composite processing:Part 2-numerical analysis for unidirectional graphite/epoxy laminates[J]. Polymer Composites, 1987, 8(2):123-132. |
| [6] | GUTOWSKI T G, CAI Z, BAUER S, et al. Consolidation experiments for laminate composites[J]. Journal of Composite Materials, 1987, 21(7):650-669. |
| [7] | YOUNG W B. Resin flow analysis in the consolidation of multi-directional laminated composites[J]. Polymer Composites, 1995, 16(3):250-257. |
| [8] | 张纪奎, 郦正能, 关志东, 等. 复合材料层合板固化压实过程有限元数值模拟及影响因素分析[J]. 复合材料学报, 2007, 24(2):125-130. ZHANG J K, LI Z N, GUAN Z D, et al. Compaction of laminated composites:Numerical simulation and analysis on influencing factors[J]. Acta Materiae Compositae Sinica, 2007, 24(2):125-130(in Chinese). |
| [9] | 张纪奎, 张江, 马志阳, 等. 厚截面层合板非同步固化的三维有限元分析[J]. 复合材料学报, 2013, 30(11):1464-1469. ZHANG J K, ZHANG J, MA Z Y, et al. Three-dimensional finite element analysis for non-synchronized cure of thick composite laminates[J]. Acta Materiae Compositae Sinica, 2013, 30(11):1464-1469(in Chinese). |
| [10] | 李艳霞, 李敏, 张佐光, 等. L形复合材料层板热压工艺密实变形过程的数值模拟[J]. 复合材料学报, 2008, 25(3):78-83. LI Y X, LI M, ZHANG Z G, et al. Numerical simulation on consolidation and deformation of L-shaped composite laminate in autoclave process[J]. Acta Materiae Compositae Sinica, 2008, 25(3):78-83(in Chinese). |
| [11] | JOSHI S C, LIU X L, LAM Y C. A numerical approach to the modeling of polymer curing in fiber-reinforced composites[J]. Composites Science and Technology, 1999, 59(7):1003-1013. |
| [12] | YAN X. Finite element modeling of curing of epoxy matrix composites[J]. Journal of Applied Polymer Science, 2007, 103(4):2310-2319. |
| [13] | LEE W I, LOOS A C, SPRINGER G S. Heat of reaction, degree of cure, and viscosity of Hercules 3501-6 resin[J]. Journal of Composite Materials, 1982, 16(6):510-520. |
| [14] | YOUNG W B. Compacting pressure and cure cycle for processing of thick composite laminates[J]. Composite Science and Technology, 1995, 54(3):299-306. |
| [15] | YAN X. Consolidation and cure simulations for laminated composites[J]. Journal of Composite Materials, 2006, 40(20):1853-1869. |
| [16] | SHIN D, HAHN H T. Compaction of thick composites:Simulation and experiment[J]. Polymer Composites, 2004, 25(1):49-59. |
| [17] | HUBERT P, POURSARTIP A. Aspects of the compaction of composite angle laminates:An experimental investigation[J]. Journal of Composite Materials, 2001, 35(1):2-26. |
| [18] | 马云荣, 贺继林, 李栋, 等. 树脂基复合材料曲面结构件固化变形数值模拟[J]. 复合材料学报, 2015, 32(3):874-880. MA Y R, HE J L, LI D, et al. Numerical simulation of curing deformation of resin matrix composite curved structure[J]. Acta Materiae Compositae Sinica, 2015, 32(3):874-880(in Chinese). |
