DESIGN AND VERIFICATION OF VARI PROCESS FOR ASYMMETRIC COMPLEX FOAM SANDWICH COMPOSITES

Abstract

Abstract: Aiming to solve the manufacture problems of civil aircraft aft fairing structure using vacuum assisted resin infusion (VARI) process, PAM-RTM simulation was adopted to assist the designing and optimization of resin flow during the resin infusion process for asymmetric foam sandwich composite structures. Firstly, the simulation process of resin flow was established based on PAM-RTM software, and four different resin injection schemes were proposed and conducted. Through comparison and analysis of the four different simulation schemes, the resin flow rules during injection process for the complex foam sandwich composite material with opening area have been obtained. Then, the optimum injection scheme was selected and verified by experiment. Finally, the quality of the fabricated foam sandwich composite was tested, and the non-destructive testing results demonstrated the good quality without defects, as well as good uniformity in thickness. The research results might be useful for the application of complex foam sandwich composites manufactured by liquid forming technology in civil aircraft structures.

Key words: foam sandwich, composite, PAM-RTM, resin injection

CLC Number:

TB332

LIU Ya-nan, LIU Chen-xiao, LI Yong-hang, YUAN Chong-xin. DESIGN AND VERIFICATION OF VARI PROCESS FOR ASYMMETRIC COMPLEX FOAM SANDWICH COMPOSITES[J]. Fiber Reinforced Plastics/Composites, 2019, 0(8): 104-108.

References

[1] 包建文. 高效低成本复合材料及其制造技术[M]. 北京: 国防工业出版社, 2012: 17-20.
[2] 周雷敏, 孙沛. 波音787客机的复合材料国际化制造[J]. 高科技纤维与应用, 2013(2): 57-61.
[3] 赵晨辉, 张广成, 张悦周. 真空辅助树脂注射成型(VARI)研究进展[J]. 玻璃钢/复合材料, 2009(1):80-84.
[4] 徐东明, 刘兴宇, 杨慧. 低成本真空辅助成型技术在民用飞机复合材料结构上的应用[J]. 航空制造技术, 2014(z2): 87-89.
[5] Gardiner G. Resin infused MS-21 wings and wing box[J]. High performance composites, 2014(1):29.
[6] 姜茂川, 赵龙, 刘强, 等. VARI液体成型工艺制备复合材料帽型泡沫夹芯构件的工艺模拟及验证[J]. 复合材料学报, 2013(30):266-272.
[7] 贾欲明, 韩全民, 李巧, 等. 泡沫夹层结构在飞机次承力结构中的应用[J]. 航空制造技术, 2009(s1):8-12.
[8] Matsuzaki R, Kobayashi S, Todoroki A, et al. Flow control by pro-gressive forecasting using numerical simulation during vacuum assisted resin transfer molding[J]. Composites: Part A, 2013, 45(2):79-87.
[9] 刘刚, 罗楚养, 李雪芹, 等. 复合材料厚壁连杆RTM成型工艺模拟及制造验证[J]. 复合材料学报, 2012, 29(4): 105-112.
[10] 刘亚男, 原崇新, 等. 一种新型泡沫填充T型加筋壁板液体成型共固化工艺研究[J]. 航空制造技术, 2018, 61: 74-77.
[11] Lawrence J M, Frey P, et al. Simulation and validation of resin flow during manufacturing of composite panels containing embedded impermeable inserts with the VARTM process[J]. Polymer Composites, 2007, 28(4): 442-450.
[12] 熊美蓉, 段跃新, 董安琪, 等. 真空辅助树脂灌注工艺成型泡沫夹芯结构工艺设计与控制[J]. 复合材料学报, 2013, 30(3): 28-34.
[13] 张家莹, 段跃新, 肇研, 等. VARI成型泡沫夹芯壁板结构界面性能[J]. 复合材料学报, 2013, 30 (1): 73-82.
[14] 肖飞, 姜茂川, 刘强, 等. 复合材料副翼典型结构件的VARI工艺模拟及试验验证[J]. 航空材料学报, 2015(35): 69-76.
[15] 魏俊伟, 成天健, 郭万涛. 泡沫夹芯结构复合材料VARI工艺模拟研究[J]. 工程塑料应用, 2012, 40(4): 33-38.
[16] 魏俊伟, 郭万涛, 张用兵. 夹芯结构复合材料构件VARI工艺仿真计算与成型实验[J]. 材料开发与应用, 2012, 27(4): 51-58.
[17] 肖飞, 原崇新, 丛晶洁. 复合材料加筋壁板结构件VARI液体成型工艺计算模拟[J]. 航空材料学报, 2016(36): 47-54.