Study on Magnetic Memory Method (MMM)for Fatigue Evaluation
In lab experiments to evaluate the fatigue, the surface magnetic field on specimens would be changed with different cycle numbers (N). Good correlation between resulting fatigue level and MMM signals has been demonstrated. In the M (magnetic)N (cycle) curve derived from the experimental data, three stages corresponding to the fatigue process can be clearly distinguished. A similar situation was found in the practical inspections of train axles in service. This technique could be used for fatigue evaluation.
MMM Fatigue M-N Curve, Nondestructive Evaluation
Bin HU Gang CHEN Gongtian SHEN Luming LI Xing CHEN
China Special Equipment Inspection & Research Institute, Beijing China School of Aerospace, Tsinghua University, Beijing China
国际会议
第十七届世界无损检测会议(17th World Conference on Nondestructive Testing)
上海
英文
2610-2618
2008-10-25（万方平台首次上网日期，不代表论文的发表时间）