| 1. | Safety of structures is a common and important problem in the mechanical engineering . recent years there is a trend of developing unified theory of fatigue and fracture to describe the life - cycle damage behaviour of structures . researches on safety guarantee are going toward multi - method synthesis , system micromation , network availability and life - cycle information management 结构的安全性一直是工程中普遍关心的重要问题,结构强度学逐渐发展到疲劳断裂统一理论,结构安全保障手段已向多方法、微小化、网络化和全寿命在线保障与监测发展,建立全寿命安全保障系统,涉及材料、机械、力学、电子等学科的交叉融合。 |