Fatigue crack growth prediction in 2xxx AA with friction stir weld HAZ properties
作者: A. TzamtzisA.T. Kermanidis
作者单位: 1Laboratory of Mechanics and Strength of Materials, Department of Mechanical Engineering, University of Thessaly, Leoforos Athinon, Pedion Areos 38334, Volos, Greece
刊名: Fracture and Structural Integrity, 2016, Vol.10 (35), pp.396 - 404
来源数据库: Gruppo Italiano Frattura
DOI: 10.3221/IGF-ESIS.35.45
关键词: Fatigue Crack Growth AnalysisAluminum AlloyFriction Stir WeldHeat Affected ZoneCyclic Hardening
原始语种摘要: An analytical model is developed to predict fatigue crack propagation rate under mode I loading in 2024 aluminum alloy with FSW HAZ material characteristics. Simulation of the HAZ local properties in parent 2024 AA was performed with overaging using specific heat treatment conditions. The model considers local cyclic hardening behavior in the HAZ to analyze crack growth. For the evaluation of the model, the analytical results have been compared with experimental fatigue crack growth on overaged 2024 alloy simulating material behavior at different positions within the HAZ. The analytical results showed that cyclic hardening at the crack tip can be used successfully with the model to predict FCG in a material at overaged condition associated with a location in the FSW HAZ
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关键词翻译
关键词翻译
  • overaged 过度时效的
  • growth 生长
  • crack 裂隙
  • prediction 预报
  • properties 道具
  • overaging 过时效
  • hardening 硬化
  • FSW Flight Software
  • analytical 分析的
  • alloy 合金