基于平面应变有限元分析模型与策略,研究了软模共固化成型工艺中工艺间隙、固化周期和残余应力对复合网格结构性能的影响.通过模拟一典型复合材料网格结构的共固化工艺过程,得出了合适工艺间隙的确定方法,建立了降低耦合场梯度策略,并且解释了产生残余应力的原因.这对复合网格结构的软模共固化工艺的工艺参数合理选择具有一定的参考价值.
Based on the 2D plane strain finite element analysis model and strategy, the influences of technology gap, curing cycle and residual stress on the performance of grid structure were studied. From numerical simulation of the co-curing process for a typical advanced grid stiffen structure, a method for appropriate technical gap is given, the strategy for reducing the gradient of coupling fields is provided and the mechanism of residual stress generation is explained. Therefore, this study will be meaningful for the proper determination of technical parameters during soft-mode aided co-curing processes.
参考文献
| [1] | Huybrechts Steven M,Meink Troy E,Wegner Peter M,et al.Manufacturing theory for advanced grid stiffened structures[J].Composites Part A,2002,33(2):155-161. |
| [2] | Kim Thomas D.Fabrication and testing of thin composite isogrid stiffened panel[J].Composite Structures,2000,49(1):21-25. |
| [3] | 谭华,晏石林.热固性树脂基复合材料固化过程的三维数值模拟[J].复合材料学报,2004,21(6):167-172.Tan Hua,Yan Shilin.Three-dimensional simulation of curing process for thermoset composites[J.Acta Materiae Compositae Sinica,2004,21(6):167-172. |
| [4] | 陈浩然,任明法,赵伟.复合材料缠绕壳体结构成型和使用过程多场分析的研究进展[J].力学进展,2007,37(2):233-245.Chen Haoran,Ren Mingfa,Zhao Wei.Advances of multifields analysis of filament wound comopsite structure during manufacture and service periods[J].Advances in Mechanics,2007,37(2):233-245. |
| [5] | 任明法.具有金属内衬复合材料缠绕结构成型和使用过程的一体化分析[D].大连:大连理工大学,2005. |
| [6] | 张明龙,肖加余.气蓑辅助RTM工艺成型导弹舱段构件[J].复合材料学报,2008,25(1):41-45.Zhang Minglong,Xiao Jiayu.Missile cabin fabrication by blader-assisted RTM[J].Acta Materiae Compositae Sinica,2008,25(1):41-45. |
| [7] | 靳武刚.热膨胀硅橡胶在复合材料成型工艺中的应用[J].塑料科技,2003,154(2):4-6.Jin Wugang.Application of thermal expansion silicone rubber to moulding process of composites[J].Plastics Sci & Technology,2003,154(2):4-6. |
| [8] | 尹昌平,刘钧,曾竞成,肖加余.硅橡胶在聚合物基复合材料成型中的应用[J].材料导报,2006,20(11):35-39.Yin Changping,Liu Jun,Zeng Jingcheng,Xiao Jiayu.Application of silicone rubber in polymer based composites molding[J].Materials Review,2006,20(11):35-39. |
| [9] | 张纪奎,郦正能,关志东,程小全,刘涛.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 Jikui,Li Zhengneng,Guan Zhidong,Cheng Xiaoquan,Liu Tao.Compaction of laminated composites numerical simulation and analysis on influencing factors[J].Acta Materiae Compositae Sinica,2007,24(2):125-130. |
| [10] | Bogetti Travis A,Gillespie J W.Two dimensional cure simulation of thick thermosetting composites[J].Journal of Composite Materials,1991,25(3):239-273. |
| [11] | 郭兆璞,陈浩然,段滋华.复合材料层合板粘弹性固化残余应力分析[J].计算结构力学及其应用,1996,13(4):401-407.Guo Zhaopu,Chen Haoran,Duan Zihua.Thermo-viscoelastic analysis of curing residual stresses in composite laminates[J].Computational Structural Mechanics and Applications,1996,13(4):401-407. |
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