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论文类型：期刊论文

发表时间：2015-11-01

发表刊物：INTERNATIONAL JOURNAL OF FATIGUE

收录刊物：SCIE、EI、Scopus

卷号：80

页面范围：136-144

ISSN号：0142-1123

关键字：High-cycle fatigue; Intrinsic dissipation; Temperature variation; Damage mechanism

摘要：The present paper, firstly, establishes a calculation model of intrinsic dissipation, based on the double exponential regression for the one-dimensional distribution of specimen surface temperature variation. Then, an energy method is proposed for rapid evaluation of high-cycle fatigue parameters (i.e., fatigue limit and S-N curve). The energy method takes intrinsic dissipation as the fatigue damage indicator, and eliminates the interference of internal friction causing no damage on fatigue life evaluation. An experimental research on FV520B stainless steel was performed, in order to verify the feasibility and validity of the energy method, as well as the calculation model. (C) 2015 Elsevier Ltd. All rights reserved.