The integrated molding technology of T-shaped composite stiffened panel is an important means to realize light weight

high strength and low cost of composite product. The work based on the structural changes of the composite during the layering process

a skin-stiffener integrated T-shaped stiffened panel structure was designed. Through solid modeling

combined with the Young’s modulus

shear modulus

Poisson’s ratio and linear elastic constitutive model

the service behavior of the integrated T-shaped stiffened panel structure was simulated by finite element method. The results of finite element analysis show that the static mechanical properties of the integration composite T-shaped stiffened panel structure are better than those of the traditional structure. Meanwhile

the dynamic impact resistance of the integrated T-shaped stiffened panel can reach the similar level of the traditional T-shaped stiffened panel by adjusting the thickness of the skin. In addition

in order to verify the feasibility of the integrated molding technology of T-shaped stiffened panel

the integrated molding die with easy operation

low cost

uniform temperature distribution

and controllable thermal deformation was designed

and the integrated molding process of T-shaped stiffened panel was explored. The results have guiding significance for the quality control of the integrated molding of T-shaped stiffened panel.