共固化成型复合材料加筋壁板的固化变形仿真技术研究

针对共固化成型的复合材料加筋壁板,建立了固化变形模拟计算流程,并开展了T800碳纤维/环氧树脂复合材料工形加筋壁板的固化变形预测,数值预测结果与试验测试结果吻合较好,验证了计算方法的合理性;基于模拟计算,进一步分析了温度工艺参数包括升/降温速率、保温时间等以及结构尺寸参数包括长桁宽度、高度和圆角半径等对加筋壁板固化变形的影响规律,从工艺设计和结构设计角度为共固化成型加筋壁板的固化变形控制提供指导和依据。

Simulation of Curing Deformation for Co-Cured Stiffened Composite Panel

In this study,the numerical simulation of the curing deformation of a co-cured stiffened composite panel is implemented.The curing deformation predictions of the T800 carbon fiber/epoxy resin composite stiffened panel are in good agreement with the experimental test results,which show the predictive capacity of the proposed simulation method.Through the simulation,the influences of curing parameters including heating/cooling rate,holding time and structural size parameters including width and height of stiffener and fillet radius on the curing deformation of the stiffened panel are further analyzed.These results are expected to provide guidance for the curing deformation control of co-cured stiffened composite panels from the perspective of process design and structural design.