Development of Bending and Torsion Fatigue Testing Machine for Multiaxial Non-Proportional Loading
This study presents a newly developed multiaxial high cycle fatigue testing machine which can load a cyclic bending loading and a reversed torsion loading onto an hour-glass shaped solid bar specimen.This testing machine can perform the fatigue tests with a high frequency under a proportional and a non-proportional loading conditions.In the non-proportional loading,principal directions of stress and strain are changed in a cycle.In the testing machine,the loading is generated by centrifugal force caused by the revolving weights attached to rotational wheels.The maximum frequency of the testing machine is 50Hz.In the test,two types of loading paths are employed,a proportional loading and a non-proportional loading.The former is a cyclic bending loading and the latter a combining cyclic bending and reversed torsion loading in the developed testing machine.In this study,an applicability of the testing machine is evaluated by carrying out the tests under these loading conditions using a type 304 stainless steel.
Fatigue Multiaxial loading Non-proportional loading Testing machine Life evaluation
Takahiro Morishita Takamoto Itoh Masao Sakane
Ritsumeikan University,1-1-1,Noji-higashi,Kusatsu-shi,Shiga 525-8577,Japan
国际会议
2016 International Symposium on Structural Integrity，ISSI—2016(2016国际结构完整性研讨会)
天津
英文
534-538
2016-05-26（万方平台首次上网日期，不代表论文的发表时间）