Power Generation Department, Luneng Company, Jinan 250001,China;
College of Mechanical and Electrical Engineering, Harbin Engineering University,Harbin 150001, China;
Technique Superintendence Center, Daqing Oil Field Company Ltd, Daqing 163453, China;
College of Mechanical and Electrical Engineering, Harbin Engineering University,Harbin 150001, China;
Expert system; Fracture Mechanics; Structural component design;