Abstract:
The interaction between the composite laminate structure and the mold during the autoclave curing process was studied to improve the manufacturing accuracy. Considering the joint effect of frictional force and adhesive force at the contact interface between the mold and the component, a numerical calculation model for curing strain and stress of the composite laminate structure was improved and compared with the existing experimental results. The spring element was introduced to establish a finite element model of the curing process and used to verify the analytical model. Finally, the influencing factors of curing deformation were explored through the analytical model. The results show that the analytical forecast model established has high calculation accuracy and practicability. The finite element model considering the role of the mold can better predict the deformation trend of the laminate. Through analytical model exploration, it is found that the length of the laminate, the mold material and the surface condition will have an effect on the interlayer slip during the curing process, which has a better guiding significance for the formulation of process conditions.