童小燕
,
王德俊
,
徐灏
金属学报
通过对4种碳钢和合金钢的低周疲劳实验,分析了它们的滞回能循环特性及其变化规律,并确定了具有不同循环特性的滞回能数学描述,在实验基础上,提出了疲劳失效的定义,建立了循环滞回能和总失效吸收能与失效寿命之间的实验关系式。讨论了疲劳损伤与滞回能之间关系。
关键词:
循环滞回环
,
cyclic hysteresis energy
,
fatigue failure life
,
Masing material
,
Non-Masing material
TONG Xiaoyan WANG Dejun XU Hao Northeast University of Technology
,
Shenyang
,
China TONG Xiaoyan P.O.Box 180
,
Northeast University of Technology
,
Shenyang 110006
,
China
金属学报(英文版)
Based on the low-cycle fatigue tests of carbon and alloy steels,the cyclic properties of hysteresis energy and its changing rules have been analysed.The mathematical formula of cyclic hysteresis energy of the materials with different cyclic properties have been presented. The total absorbed energy to failure is associated with the variation of cyclic hysteresis energy.
关键词:
cyclic hysteresis loop
,
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