Effect of metal mould on residual stress of composite laminated during cure process

The process induced residual stress of composite laminated plate with aluminum plate was numerically simulated by commerce software. Finite difference method was employed to consider the strong coupled relation between cure kinetics model and thermal-chemical model during the process of simulation for transient temperature field. Chemical shrinkage was applied to composite materials as an initial strain for each time increment in residual stress simulation Residual stress of composite laminated plate with aluminum plate was successfully simulated on the basis of the mentioned technology. The results show that the time of maximum stress occurred for two materials was changed due to the effect of metal mould; Because of constrain from metal mould, composite laminated bearded more residual stresses compared to that without considering the effect of metal mould during cure process.