【作者】 施惠基； 段政； 张海峰； 李景峰；

【Author】 Shi Huiji (School of Aerospace,Tsinghua University,Beijing,China)

【机构】 北京清华大学航天航空学院；

【摘要】 近年来先进的工程材料在复杂环境中的应有日趋广泛,因此在特殊应有条件下材料疲劳性能的研究,对工程的可靠性具有重要意义。本文简要论述了我们有关高温合金材料低周疲劳,铝合金材料腐蚀疲劳,轴承材料接触疲劳和高强度合金超高周疲劳方面的研究成果。包括疲劳试验,损伤分析,裂纹萌生和扩展特性,疲劳寿命预测等方面。更多还原

【Abstract】 Recent years,advanced engineering materials have been asked to use in under complex environment.Fatigue behavior of the materials under applied condition becomes more important to ensure reliability.In this presentation,we give a brief summery of our researches about low cycle fatigue of anisotropic superalloys at high temperature, corrosion-fatigue of Al alloy,contact fatigue of bearing steel,very high cycle fatigue of high strength alloy,fretting fatigue of Al and steel.The fatigue tests and experimental results,analysis of damage,modeling of crack behavior and lifetime predication have been concerned.更多还原