Composite cable joint fatigue fracture life evaluation method based on multi-source information fusion

The invention discloses a method for evaluating fatigue fracture life of a composite cable joint based on multi-source information fusion, belongs to the technical field of high voltage and insulation, and aims to solve the problems that a special test evaluation method for fatigue fracture accidents of the composite cable joint is lacked and the life of the composite cable joint cannot be accurately predicted. The method comprises the steps of sample and test equipment preparation, sample test and data acquisition, data processing, fracture interference model establishment and result application. According to the method, the factors influencing the fracture of the cable joint are analyzed by integrating the joint fracture accident easily occurring in the actual working condition, the temperature, the humidity and the stretching degree, and the fracture interference model is constructed, so that the health condition of the cable joint is evaluated, the reasonable fracture degree is judged, the continuous expa