针对热固性树脂基复合材料固化过程中各种复杂的物理化学变化之间的相互影响,建立了基于材料性能时变特性的复合材料固化过程的二维多场耦合计算模型.该模型由已知的3个经典复合材料固化过程子模型构成,包括热-化学模型、树脂黏度模型和树脂流动模型.在此基础上,将固化过程中材料性能的时变特性引入多场耦合计算模型中.通过与文献中实验结果的比较,证明了所建立的模型具有较高的可靠性.对AS4/3501-6复合材料层合平板的固化过程进行了数值模拟,重点研究了固化过程中纤维体积分数变化及材料参数的时变特性对固化过程中温度、固化度和树脂压力等参量的影响.分析结果表明:考虑纤维体积分数变化和材料性能的时变特性后,固化过程中复合材料层合板中心温度峰值明显减小,树脂压力随时间的变化将有所滞后.
参考文献
| [1] | Bogetti T A;Gillespie J W.Two-dimensional cure simulation of thick thermosetting composites[J].Journal of Composite Materials,199125(03):239-273. |
| [2] | Kim Y K;White S R.Viscoelastic analysis of processing-induced residual stresses in thick composite laminates[J].Mechanics of Composite:Materials and Structures,19974(04):361-387. |
| [3] | A. Cheung;Y. Yu;K. Pochiraju.Three-dimensional finite element simulation of curing of polymer composites[J].Finite elements in analysis & design,20048(8):895-912. |
| [4] | 戴福洪;武湛君;张博明;杜善义.复合材料RTM成型工艺固化过程三维数值模拟[J].复合材料学报,2004(5):134-139. |
| [5] | 黄其忠;任明法;陈浩然;张驰群.复合材料先进网格结构共固化工艺的温度场模拟[J].复合材料学报,2011(3):141-147. |
| [6] | 张纪奎;张江;马志阳;程小全.厚截面层合板非同步固化的三维有限元分析[J].北京航空航天大学学报,2013(11):1464-1469. |
| [7] | A. S. Ganapathi;Sunil C. Joshi;Zhong Chen.Simulation of bleeder flow and curing of thick composites with pressure and temperature dependent properties[J].Simulation modelling practice and theory: International journal of the Federation of European Simulation Societies,2013:64-82. |
| [8] | Gasser F. Abdelal;Antony Robotham;Wesley Cantwell.Autoclave cure simulation of composite structures applying implicit and explicit FE techniques[J].International journal of mechanics and materials in design,20131(1):55-63. |
| [9] | Springer G S;Tsai S W.Thermal conductivities of unidirectional materials[J].Journal of Composite Materials,19791(02):166-173. |
| [10] | 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,198216(06):510-520. |
| [11] | Springer G S.Resin flow during the cure of fiber reinforced composites[J].Journal of Composite Materials,198216(05):400-410. |
| [12] | Dave R.A unified approach to modeling resin flow during composite processing[J].Journal of Composite Materials,199024(01):22-41. |
| [13] | Dave R;Kardos J L;Dudukovi 6 M P.A model for resin flow during composite processing part 2:numerical analysis for unidirectional graphite/epoxy laminates[J].Polymer Composites,19878(02):123-132. |
| [14] | DaveR;KardosJL;Dudukovi6MP.A model for resin flow during composite processing:Part1-General mathematical development[J].Polymer Composites,19878(01):29-38. |
| [15] | Daniel D.Shin;H.Thomas Hahn.Compaction of Thick Composites:Simulation and Experiment[J].Polymer Composites,20041(1):49-59. |
| [16] | 王勖成;邵敏.有限单元法基本原理和数值方法[M].北京:清华大学出版社,1997:421-436. |
| [17] | Loos A C;Springer G S.Curing of epoxy matrix composites[J].Journal of Composite Materials,198317(02):135-169. |
| [18] | Johnston A A .An integrated model of the development of process-induced deformation in autoclave processing of composite structures[D].Vancouver:University of British Columbia,1997. |
| [19] | Gutowski T G;Cai Z;Bauer S.Consolidation experiments for laminate composites[J].Journal of Composite Materials,198721(07):650-669. |
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