Abstract
The overheat phenomenon often appears in the fatigue test of some high strength materials. It leads the deconcentration of test data and low efficiency of experiment process, or even failure of the whole test. The frequency adjusting method (FAM) and sample shape design technology are developed to solve this problem. Experiment result shows that the FAM can moderately ameliorate the overheat phenomenon. The resistivity of overheat phenomenon of the funnel type sample is far stronger than the straight bar type one.
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