WU Huaisheng ZHONG Qunpeng Jiangsu Institute of Technology
,
Zhenjiang
,
212013
,
ChinaBeijing University of Aeronautics and Astronautics
,
Beijing
,
100083
,
China
材料科学技术（英文）
Under the constant amplitude and pro- grammed loading conditions the fatigued fracture surfaces of 2024-T3 sheet are examined by SEM and TEM.A corrected method,in which the effects of loading sequence are taken into account,has been developed for the retrieval of effective stress spectrum.The parameters including d,a,C,n,R,α and σ_y are evaluated according to their influences on the retrieved results.Several computer programs have been produced for the fractographic quantita- tive analysis,and the application of image pro- cessing technique in the fractographic analysis is al- so interpreted.
关键词:
fatigue
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