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众所周知,由于近代若干新兴工业的高速发展,新材料和新工艺的采用以及经过古典强度科学作过“安全设计”的若干工程结构,在生产使用过程中发生了意想不到的灾害性脆性断裂事故等重大生产实际问题的巨大压力,迫使人们对于这些生产实际问题不得不竭尽全力去研究和解决,从而在本世纪五十年代末期创立了断裂力学这一门崭新的强度科学。断裂力学的创立问世不但使固体力学的理论研究更加切合固体材料的实际并使其
As we all know, due to the rapid development of a number of new industries in modern times, the adoption of new materials and new technologies, and several engineering structures that have been “safely designed” by classical strength science, unexpected disaster-prone brittle fracture accidents etc. occurred during the production and use The tremendous pressure on practical problems of major production forced people to make every effort to study and solve these practical problems of production so that the new strength science of fracture mechanics was founded in the late 1950s. The founding of fracture mechanics not only makes the theoretical study of solid mechanics more in line with the reality of solid materials and make it