Experimental Study of Combined High and Low Cycle Fatigue Test of Turbine Blade Material

摘要：

　　The combined high and low cycle fatigue(CCF)of turbine blade is one of the main failure modes of aero-engine.In order to study the CCF property of turbine blade material,modifications were conducted based on the fixture for the combined fatigue test of turbine blade to design a new fixture of CCF with simulation samples on test-bed.New fixture was tested using samples of certain titanium alloy which was modified based on the testing results and FEM: A flexible assembly comprised of a plate-form spring and bending vibration splint was added to improve the bending rigidity of the fixture; simulation sample was designed combined with the shape of turbine blade.Testing results indicate that the bending rigidity of fixture is decreased by adding the flexible assembly; the fracture sites of simulation sample are consistent with the FEM result; the load pattern of CCF can be accomplished with new fixture and simulation samples,which provide the experimental foundation for test design for the CCF of turbine blade materials.

关键词： Turbine blade material Combined fatigue Fatigue test Combined high and low fatigue

作者: JU Chen FENG Jun ZHANG Peng HOU Gui-cang

作者单位: School of Energy and Power Engineering,Beihang University,Beijing 100191,China

会议类型: 国际会议

会议名称: The 5th International Symposium on Jet Propulsion and Power Engineering(第五届喷气推进与动力工程国际会议)

会议地点: 北京

会议语种:英文

页码: 1-6

在线出版日期: 2014-09-15（万方平台首次上网日期，不代表论文的发表时间）