在进行新工程结构的防断裂设计以及对旧工程结构的安全评定中,断裂力学是一种有力的工具.自从六十年代末期断裂力学介绍到中国以来,它的应用几乎扩展到每一个工程技术部门.许多科学工作者和工程师们对于大型工程结构的断裂控制问题曾经给予极大的重视.因为这些大型结构,诸如舰船、火车、飞机、贮罐、压力容器以及火箭壳体等,一旦发生断裂,其后果往往是严重 Fracture mechanics is a powerful tool in the design of anti-fracture designs for new structures as well as in the safety assessment of old structures, and since the introduction of fracture mechanics in China in the late 1960s, its application has extended almost to every engineering technique Department.Many scientists and engineers have given great attention to the problem of fracture control of large-scale engineering structures, such as ships, trains, aircraft, storage tanks, pressure vessels and rocket housings, Fracture, the consequences are often serious