欢迎登录材料期刊网
童小燕 , 王德俊 , 徐灏
金属学报
利用能量作疲劳损伤基本参量,建立了疲劳损伤的能耗结构,在试验的基础上,围绕着疲劳损伤过程中的不可逆能耗分析,系统地研究了循环过程及循环内的疲劳损伤热能耗散变化规律,并寻找出疲劳过程中循环滞回能与有效能耗(储能)之间联系。
关键词: 疲劳损伤 , energy dissipation , cycle loading process , null
TUNG Xiaoyan Northwestern Polytechnical University , Xi'an , ChinaWANG Dejun XU Hao Northeast University of Technology , Shenyang , China
金属学报(英文版)
Using the dissipated energy as an essential parameter,the energy dissipative structure in pro- cess of fatigue damage of materials has been established.Through thermodynamic analysis for irreversible energy dissipation in fatigue damage process,the heat dissipative variations in cyclic loading process as well as in a cycle have been systematically studied on the basis of low cycle fatigue tests and infrared measurement of self-heating thermography.Meanwhile,the cyclic hysteresis energy and efficient energy dissipation (stored energy) have been proposed during fatigue damage process.
关键词: fatigue damage , null , null
