摘要
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。
Based on the low-cycle fatigue tests of carbon and alloy steels, thecyclic properties of hysteresis energy and its changing rules have been analysed. Themathematical formula of cyclic hysteresis energy of the materials with different cy-clic properties have been presented. The total absorbed enerey to failure is associ-ated with the variation of cyclic hysteresis energy.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
1989年第5期A359-A363,共5页
Acta Metallurgica Sinica
关键词
碳钢
合金钢
循环滞回能
疲劳
实验
cyclic hyteresis loop
cyclic hysteresis energy
fatigue failure life
Masing material
Non-Masing material
