文献类型：期刊文献

中文题名：基于电能耗散的金属材料疲劳损伤测量

英文题名：Fatigue Damage Measurements of Metallic Materials Based on Electrical Energy Dissipation

作者：孙斌祥[1];郭乙木[2]

机构：[1]绍兴文理学院土木系;[2]浙江大学力学系

年份：2003

卷号：24

期号：3

起止页码：416

中文期刊名：力学季刊

外文期刊名：Chinese Quarterly of Mechanics

收录：CSTPCD、、北大核心2000、CSCD2011_2012、北大核心、CSCD

语种：中文

中文关键词：电阻;非线性累积疲劳损伤;疲劳极限;寿命预测

外文关键词：electrical resistance; nonlinear cumulative fatigue damage; fatigue limit; life prediction

中文摘要：根据电磁学原理,提出了基于电能耗散的疲劳损伤定义,指出其较能反映金属材料疲劳损伤的特征.获得了用电阻变化测量疲劳损伤的公式,应用计及疲劳极限和循环应力幅影响的非线性累积疲劳损伤模型,给出鲻了金属材料疲劳损伤的剩余寿命预测公式.通过正火45#碳钢的旋转弯曲疲劳试验,验证了本文提出的剩余寿命预测公式的可靠性,和韧性耗散测量疲劳损伤相比较,说明了用电阻测量疲劳损伤的合理性.

外文摘要：According to the electromagnetics principles, the definition of fatigue damage on electrical energy dissipation was presented. And it is indicated that the essential characteristics on fatigue damage of metal materials can still be reflected. The formula of fatigue damage measurement by means of the electrical resistance change was obtained. By using the nonlinear cumulative fatigue damage model considering the influence of the fatigue limit and the cyclic stress amplitude, the remaining life formula of the fatigue damage of metal materials was obtained. Through the bending rotation fatigue damage testing on the normalized 45 steel, the reliability of the formula on remaining life prediction was verified. By comparison between the measuring fatigue damage of electrical resistance and that of ductility dissipation, it is proved that the reasonability of fatigue damage measuring by electrical resistance.