An Ultra-High Frequency Vibration-Based Fatigue Test and Its Comparative Study of a Titanium Alloy in the VHCF Regime
Wei Xu,
Yanguang Zhao,
Xin Chen,
Bin Zhong,
Huichen Yu,
Yuhuai He,
Chunhu Tao
Affiliations
Wei Xu
Beijing Key Laboratory of Aeronautical Materials Testing and Evaluation, AECC Key Laboratory of Science Technology on Aeronautical Materials Testing and Evaluation, Science and Technology on Advanced High Temperature Structural Materials Laboratory, Beijing Institute of Aeronautical Materials, Beijing 100095, China
Yanguang Zhao
State Key Laboratory of Structural Analysis of Industrial Equipment, Dalian University of Technology, Dalian 116085, China
Xin Chen
Beijing Key Laboratory of Aeronautical Materials Testing and Evaluation, AECC Key Laboratory of Science Technology on Aeronautical Materials Testing and Evaluation, Science and Technology on Advanced High Temperature Structural Materials Laboratory, Beijing Institute of Aeronautical Materials, Beijing 100095, China
Bin Zhong
Beijing Key Laboratory of Aeronautical Materials Testing and Evaluation, AECC Key Laboratory of Science Technology on Aeronautical Materials Testing and Evaluation, Science and Technology on Advanced High Temperature Structural Materials Laboratory, Beijing Institute of Aeronautical Materials, Beijing 100095, China
Huichen Yu
Beijing Key Laboratory of Aeronautical Materials Testing and Evaluation, AECC Key Laboratory of Science Technology on Aeronautical Materials Testing and Evaluation, Science and Technology on Advanced High Temperature Structural Materials Laboratory, Beijing Institute of Aeronautical Materials, Beijing 100095, China
Yuhuai He
Beijing Key Laboratory of Aeronautical Materials Testing and Evaluation, AECC Key Laboratory of Science Technology on Aeronautical Materials Testing and Evaluation, Science and Technology on Advanced High Temperature Structural Materials Laboratory, Beijing Institute of Aeronautical Materials, Beijing 100095, China
Chunhu Tao
Beijing Key Laboratory of Aeronautical Materials Testing and Evaluation, AECC Key Laboratory of Science Technology on Aeronautical Materials Testing and Evaluation, Science and Technology on Advanced High Temperature Structural Materials Laboratory, Beijing Institute of Aeronautical Materials, Beijing 100095, China
This paper proposes an ultra-high frequency (UHF) fatigue test of a titanium alloy TA11 based on electrodynamic shaker in order to develop a feasible testing method in the VHCF regime. Firstly, a type of UHF fatigue specimen is designed to make its actual testing frequency reach as high as 1756 Hz. Then the influences of the loading frequency and loading types on the testing results are considered separately, and a series of comparative fatigue tests are hence conducted. The results show the testing data from the present UHF fatigue specimen agree well with those from the conventional vibration fatigue specimen with the loading frequency of 240 Hz. Furthermore, the present UHF testing data show good consistency with those from the axial-loading fatigue and rotating bending fatigue tests. But the obtained fatigue life from ultrasonic fatigue test with the loading frequency of 20 kHz is significantly higher than all other fatigue test results. Thus the proposed ultra-high frequency vibration-based fatigue test shows a balance of high efficiency and similarity with the conventional testing results.
