摘要
本文对自然条件相同的一组结构材料进行了等幅加载和变幅加载试验,测定了试件在各个承载阶段内的共振频谱.结果发现:被测试件从开始状态到疲劳断裂的各个阶段都有其表示疲劳状态的、特定的对应共振频谱.
Applies both the constant and variable amplitude load to a group of specimens of structure material in same natural condition in a fatigue strength test,determines the resonant spectrum from each stage in their loading history.It is found that there exist closely related fatigue showing,definite relations between the soec- trum and the degree of fatigue damage from beginning through fracture.
出处
《大连铁道学院学报》
1991年第2期18-21,共4页
Journal of Dalian Railway Institute
关键词
共振频谱
载荷试验
疲劳过程
resonant frequency
load test
fatigue process
storage life test
non-destructive tests
