Curing deformation simulation of foam sandwich composite C-shaped panels

doi:10.19936/j.cnki.2096-8000.20250828.010

Abstract

Abstract: Based on the curing deformation mechanism of sandwich composites, a numerical simulation model of the curing deformation of sandwich composites was established for sandwich composite C-shaped contour panels. The simulation results show that at the beginning of demolding, the inner surface of the C-shaped profile plate is subjected to tensile stress while the outer surface is subjected to compressive stress, and the whole component shrinks inward. Based on this simulation model, the curing deformation law of the C-shaped contour panels under different process conditions, such as the type of material at the gap, the number of layers, and the angle of the layer, was investigated. It is found that the curing deformation is the smallest when the gap was not filled with any material, and the curing deformation was the largest when it is filled with composite material; the deformation is positively correlated with the number of layers within a certain range; the lay-up angle has little effect on the deformation. In addition, a number of C-shaped contour panels with the corresponding process conditions were molded, and the curing deformation of the panels was determined by three-dimensional scanning. The simulation conformed well to the experiment, thus verifying the accuracy of the simulation model and realizing the accurate prediction of the curing deformation of C-shaped contour panels.

Key words: foam sandwich structures, composites, curing deformation prediction, process parameters, finite element simulation

CLC Number:

TB332

NIE Zhiwei, LUO Qi, HUO Yufan, ZHOU-HE Lezi, ZHOU Huamin. Curing deformation simulation of foam sandwich composite C-shaped panels[J]. COMPOSITES SCIENCE AND ENGINEERING, 2025, 0(8): 86-96.

References

[1] COSTA V A F, SOUSA A C M. Modeling of flow and thermo-kinetics during the cure of thick laminated composites[J]. International Journal of Thermal Sciences, 2003, 42(1): 15-22.
[2] 王安妮, 刘晓刚, 岳清瑞. 碳纤维增强树脂基复合材料及其拉索抗低速冲击性能综述[J]. 复合材料学报, 2022, 39(11): 5049-5061.
[3] 张君红. 碳纤维增强树脂基复合材料的应用现状分析[J]. 建材与装饰, 2019(30): 63-64.
[4] 胡培. 飞机夹层结构的设计和泡沫芯材的选择[J]. 航空制造技术, 2010(17): 94-96.
[5] 袁超, 邱启艳. 复合材料泡沫夹层结构翼尖小翼成型技术研究[J]. 科技与创新, 2019(6): 62-63.
[6] 白娅萍, 成艳娜,刘训新, 等. 复材框架结构泡沫夹芯舱门制造技术[J]. 工程塑料应用, 2023, 51(7): 91-95.
[7] 王丹, 李俊斌, 孟要伟. 复合材料泡沫夹芯结构在小型无人机中的应用[J]. 纤维复合材料, 2023, 40(3): 113-117.
[8] WEBER T A, ARENT J C, STEFFENS L, et al. Thermal optimization of composite autoclave molds using the shift factor approach for boundary condition estimation[J]. Journal of Composite Materials, 2017, 51(12): 1753-1767.
[9] KLUGE J N E, LUNDSTRÖM T S, WESTERBERG L G, et al. Modelling heat transfer inside an autoclave: effect of radiation[J]. Journal of Reinforced Plastics and Composites, 2016, 35(14): 1126-1142.
[10] NAWAB Y, SONNENFELD C, SAOUAB A, et al. Characterisation and modelling of thermal expansion coefficient of woven carbon/epoxy composite and its application to the determination of spring-in[J]. Journal of Composite Materials, 2017, 51(11): 1527-1538.
[11] 赵书婧. 复合材料热压罐固化变形及压实过程分析[D]. 哈尔滨: 哈尔滨工业大学, 2011.
[12] 胡中强, 程勇, 张龙, 等. 金属夹层复合材料平板的固化变形分析[J]. 四川轻化工大学学报(自然科学版), 2022, 35(6): 1-8.
[13] 张纪奎, 郦正能, 关志东, 等. 热固性树脂基复合材料固化变形影响因素分析[J]. 复合材料学报, 2009, 26(1): 179-184.
[14] 贾丽杰, 叶金蕊, 刘卫平, 等. 结构因素对复合材料典型结构件固化变形影响[J]. 复合材料学报, 2013, 30(增刊1): 261-265.
[15] 刘琦, 唐珊珊, 王小凯, 等. 芳纶铺层-蜂窝夹芯U形前缘固化变形仿真计算模型与验证[J]. 复合材料科学与工程, 2025(1): 51-58.
[16] 徐景校, 花宏亮, 王玉魁, 等. 变厚度铺层Nomex蜂窝夹层件固化变形的数值模拟[J]. 哈尔滨工业大学学报, 2024, 56(8): 56-67.
[17] 高爱娟, 孟祥敏, 孙广先, 等. 共固化蜂窝夹芯结构复合材料的蜂窝收缩问题研究[J]. 工程塑料应用, 2014, 42(10): 69-71.
[18] CHEN Q, LINGHU T, GAO Y,et al. Mechanical properties in glass fiber PVC-foam sandwich structures from different chopped fiber interfacial reinforcement through vacuum-assisted resin transfer molding (VARTM) processing[J]. Composites Science and Technology, 2017, 144: 202-207.
[19] 刘亚男, 刘晨晓, 李永行, 等. 非对称复杂泡沫夹芯复合材料VARI成型工艺设计与验证[J]. 玻璃钢/复合材料, 2019(8): 104-108.
[20] 张轶群, 王治邦, 王长武, 等. 复合材料夹芯结构低速冲击性能研究[J]. 电子机械工程, 2024, 40(2): 1-5, 29.
[21] 辛志东, 杜娟, 聂彦平, 等. 某全泡沫夹芯复合材料无人机平尾的强度分析与验证[J]. 纤维复合材料, 2022, 39(4): 61-64.
[22] 杨张韬, 倪爱清, 王继辉, 等. 孔槽泡沫夹芯复合材料真空辅助树脂传递工艺仿真与优化[J]. 材料导报, 2024, 38(2): 253-261.
[23] 魏俊伟, 张兴刚, 郭万涛. 典型夹芯结构复合材料VARI工艺成型仿真计算研究[J]. 材料开发与应用, 2013, 28(5): 71-78.
[24] ABDELAL G F, ROBOTHAM A, CANTWELL W. Autoclave cure simulation of composite structures applying implicit and explicit FE techniques[J]. International Journal of Mechanics and Materials in Design, 2013, 9(1): 55-63.
[25] BOGETTI T A, GILLSEPIE J W. Process-induced and deformation in thick-section thermoset composite laminates[J]. Journal of Composite Materials, 1992, 26(5): 626-660.
[26] HUBERT P. Aspects of flow and compaction of laminated composite shapes during cure[D]. Vancouver: The University of British Columbia, 1996.
[27] 丁安心. 热固性树脂基复合材料固化变形数值模拟和理论研究[D]. 武汉: 武汉理工大学, 2016.
[28] JOHNSTON A A. An integrated model of the development of process-induced deformation in autoclave processing of composite structures[D]. Vancouver: The University of British Columbia, 1997.
[29] 王凡, 严仁军, 邱屿, 等. 碳纤维面板泡沫夹芯复合材料加筋板仿真研究[J]. 武汉理工大学学报, 2023, 45(10): 8-15.
[30] 孙煜, 刘强, 黄峰, 等. VARI成型不同处理方法泡沫夹芯复合材料工艺及性能研究[J]. 玻璃钢/复合材料, 2017(9): 89-92.