EPR cable terminal stress intensity model evaluation method based on terahertz detection

The invention discloses an EPR cable terminal stress intensity model assessment method based on terahertz detection, belongs to the technical field of high voltage and insulation, and aims to establish a stress-intensity interference model of an EPR cable terminal to assess the health condition of the EPR cable terminal and determine a safety threshold. The method comprises the steps of sample and detection equipment preparation, sample simulation test and data acquisition and processing, establishment of a stress-strength interference model, characterization of the health condition of the EPR cable terminal, setting of a reasonable safety threshold value, random setting of parameters according to specific requirements in actual engineering by taking the model as a reference, calculation of other required parameter values, and calculation of the EPR cable terminal. According to the operation environment of the EPR cable terminal, the safety threshold is evaluated. The method has very high practical significan