Abstract: The cure-induced distortion of carbon fiber resin matrix composite (CFRP) components directly affects the mechanical properties and service life of the components after assembly. The cure-induced distortion control methods such as tool compensation and structure optimization have the problems of long process cycle time and high cost of iteration. Selec-tive heating methods, such as microwave heating and self-resistive heating, have the potential to realize precise control of the curing temperature field, and then generate thermal stresses to hedge the original cure-induced distortion by con-structing an uneven temperature field. In this paper, the typical inverse problem of how to construct an inhomogeneous temperature field, a quasi "zero-stress" equivalent temperature field is derived and defined, which in principle can hedge the residual stress field of the component before demolding to achieve a quasi "zero-stress" curing, and thus inhibit the curing deformation after demolding. An adaptive compression partitioning algorithm is designed to partition the theoretical equivalent temperature field with respect to the actual curing temperature process constraints. The method is preliminarily validated on typical hyperbolic and rotary parts, and compared with isothermal curing, the curing deformation and residual stress are reduced by nearly 50%; compared with the temperature field optimization method that only considers the cur-ing deformation, the curing deformation and residual stress are also reduced by nearly 15%.

Key words: CFRP composites, cure-induced distortion, regional temperature field, image processing, distortion control