复合材料带缠绕成型工艺参数耦合机制及优化

Mechanism and optimization of process parameters coupling for composite tape winding

基于复合材料缠绕成型工艺过程研究,分别对成型过程中紧密接触与自粘接过程进行理论分析,提出影响复合材料缠绕制品质量的关键工艺参数:缠绕温度、缠绕压力和缠绕张力;以层间剪切强度(ILSS)为优化目标,根据响应面法Box-Behnken Design(BBD)原理设计实验,建立工艺参数耦合对剪切强度的回归模型,通过对残差、方差(ANVOA)、预测值与实际值对比等检验分析,验证回归模型的可靠性及有效性,进而获得缠绕成型最优工艺参数。结果表明:在最优工艺参数作用下,层间剪切强度达到22.9 MPa,缠绕制品结合强度最高。

The theoretical analysis of intimate contact and autohesion in molding process was carried out based on the research of composite winding process.The key process parameters affecting the quality of winding product,such as winding temperature,pressure and tension,were proposed.Based on Box-Behnken Design(BBD)theory of response surface methodology,the regression model of process parameters coupling on shear strength was established to optimize the interlaminar shear strength(ILSS).The reliability and effectiveness of regression model were verified through the test analysis such as residual,analysis of variance(ANVOA)and predicted versus actual.Furthermore,the optimal process parameters of winding process were obtained.Results illustrate that the winding products employing the optimum parameters bond in the highest strength with the interlaminar shear strength of22.9 MPa.