The invention relates to a resin-based composite material curing online monitoring method, belonging to the technical field of composite material curing online monitoring, and particularly relates toa curing degree monitoring method for a composite material electric energy loss heating curing process. For the curing technology of accurately measuring the electric energy transmitted into a composite material member, the electric power value and an average temperature change amount of a whole member are monitored and input on line, according to the law of conservation of energy, the chemical energy released by the composite material member is calculated in real time, and finally the degree of the cross-linking and solidity reaction of the whole member is obtained in real time. The method does not need to embed a curing sensor generating influences on the material performances, the composite material can be taken as a heating source and as a sensor, and the composite material member electric power and temperature change are input to represent the average curing degree of the material. The method can greatly enhance the implementability of on-line monitoring of the curing degree of composite materials, can significantly improve the curing quality of composite members, and can achieve high-efficiency adaptive regulation of the curing process.

Li Yingguang

Papers

Resin-based composite material curing online monitoring method