模具在使用过程中的变形会影响到复合材料制件的固化变形,为了控制复合材料制件的成型质量,就要了解框架式模具在热压罐固化成型工艺过程中的变形情况.建立了模具变形的数值模拟预报方法,将计算结果与实际模具测量结果进行对比,本文中所提供的有限元分析计算模型可对实际情况进行较为精确的模拟.考察了平板型框架式模具在整个固化工艺过程中的变形情况,数值计算结果表明;型面翘曲变形量与模具温度的分布有关,而与模具温度的大小无关;模具翘曲变形量的峰值出现在降温阶段的中间时刻,且该变形量能够保持一段时间;最大变形时刻整个模具型面与进入热压罐前相比中心位置的变形最大,周边位置的变形最小.
参考文献
| [1] | 梁宪珠.复合材料垂直安定面固化模具的设计和制造[J].航空制造技术,1998(6):32-33.Liang Xianzhu.Design and manufacture o:f curing mould for composite vertical stabilizer structure[J].Aeronautical Manufacturing Technology,1998(6):32-33. |
| [2] | 田嘉生,王枫.复合材料成形用模具材料研究[J].沈阳航空上业学院学报,1997,14(2):34-37.Tian Jiasheng,Wang Feng.The research on toolry materials for composites manufacture[J].Journal of Shenyang Institute of Aeronautical Engineering,1997,14(2):34-37. |
| [3] | 何颖,蔡闻峰,赵鹏飞.热压罐成型中温固化复合材料模具[J].纤维复合材料,2006(1):58-59.He Ying,Cai Wenfeng,Zhao Pengfei.Moderate-temperature cured composite moulds used for manufacturing autoclaves[J].Fiber Composites,2006(1):58-59. |
| [4] | 王永贵,梁宪珠,薛向晨,等.热压罐工艺的传热分析和框架式模具温度场分布[J].航空制造技术,2008(22):80-83.Wang Yonggui,Liang Xianzhu,Xue Xiangchen,et al.Analysis of heat transfer and temperature field distribution on frame tooling in autoclave process[J].Aeronautical Manufacturing Technology,2008(22):80-83. |
| [5] | Salagnae P,Dutournie P,Glouannee P.Simulations of heat transfers in an autoclave applications to the curing of composite material parts[J].Journal de Physique Ⅳ,2004,120:467-472. |
| [6] | 丁发兴,余志武,温海林.高温后Q235钢材力学性能试验研究[J].建筑材料学报,2006,9(2):245-249.Ding Faxing,Yu Zhiwu,Wen Hailin.Experimental research on mechanical properties of Q235 steel after high temperature treatment[J].Journal of Building Materials,2006,9(2):245-249. |
| [7] | 张纪李,郦正能,关志东,等.固化度与固化收缩对非对称复合材料层合板固化变形的影响[J].复合材料学报,2007,24(2):120-124.Zhang Jikui,Li Zhengneng,Guan Zhidong,et al.Influence of degree of cure and cure shrinkage on the finial deformation of the unsymmetric composite laminates[J].Acts Materiae Compositae Sinica,2007,24(2):120-124. |
| [8] | Sarrazin H,Kim B,Ahn S H,et al.Effects of processing temperature and layup on springback[J].Journal of Composite Materials,1995,29(10):1278-1294. |
| [9] | Gigliotti M,Wisnom M R,Potter K D.Development of curvature during the cure of AS4/8552[0/90] unsymmetric composite plates[J].Composite Science and Technology,2003,63(2):187-197. |
| [10] | Twigg G,Poursartip A,Fernlund G.Tool-part interaction in composites processing Ⅰ:Experimental investigation and analytical model[J].Composites Part A,2004,35:121-133. |
| [11] | Twigg G,Poursartip A,Fernlund G.Tool-part interaction in composites processing Ⅱ:Numerical modeling[J].Composites Part A,2004,35:135-141. |
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