Fatigue damage rule of ly12cz aluminum alloy under sequential biaxial loading

摘要：

　　A series of biaxial two-level variable amplitude loading tests are conducted on smooth tubular specimens of LY12CZ aluminum alloy.The loading paths of 90°out-of-phase,45°out-of-phase and 45°in-phase are selected.The fatigue damage cumulative rules under two-level step loading of three loading paths are analyzed.A new multiaxial nonlinear fatigue damage cumulative model is proposed.Fatigue lives predicted based on the proposed model are within factors of 2 scatter band.

关键词： multiaxial fatigue fatigue damage rule nonproportional loading variable amplitude loading

作者: Y.Y.Wang D.C.Zhang W.X.Yao

作者单位: Key Laboratory of Fundamental Science for National Defense-Advanced Design Technology of Flight Vehicle,Nanjing University of Aeronautics and Astronautics,Nanjing,210016,China

会议类型: 国际会议

会议名称: International Conference on Airworthiness & Fatigue -7th ICSAELS Series Conference(大飞机安全性能与疲劳国际会议)

会议地点: 北京

会议语种:英文

页码: 101-106

在线出版日期: 2013-03-24（万方平台首次上网日期，不代表论文的发表时间）