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论文类型：期刊论文

发表时间：2010-12-01

发表刊物：INTERNATIONAL JOURNAL OF FATIGUE

收录刊物：SCIE、EI、Scopus

卷号：32

期号：12

页面范围：1970-1976

ISSN号：0142-1123

关键字：Fatigue; Thermography; Fatigue limit predictions; Residual life; Stress measurement

摘要：The Thermographic Method, which takes temperature increment as the fatigue indicator, enables to predict the fatigue limit of materials and mechanical components in a relative short time. This research paper advances this Quantitative Thermographic Method for residual fatigue life assessment and nonlinear stress measurement. The developed approach was used to assess the fatigue parameters (fatigue limit, S-N curve, residual fatigue life, applied stress) of a mild steel A36, achieving good predictions. Moreover, the lock-in thermographic technique was applied for analysis of stress concentration zones to specimens, made of the same steel, with central flat-bottom hole. (C) 2010 Elsevier Ltd. All rights reserved.