论文信息 - ON THE IMPACT FATIGUE CRACK GROWTH BEHAVIOUR OF METALLIC MATERIALS

ON THE IMPACT FATIGUE CRACK GROWTH BEHAVIOUR OF METALLIC MATERIALS

The impact fatigue crack growth characteristics of a low carbon steel and an aluminium alloy were studied. An impact fatigue testing machine of the Hopkinson bar type was used in these experiments to conduct a series of crack growth tests under simple impact stresses. The following characteristics of impact fatigue crack growth behaviour were revealed: (1) crack growth rate is higher in impact fatigue than in non-impact fatigue; (2) crack opening ratio in impact fatigue takes a higher value than in non-impact fatigue; (3) crack tip plastic zone size is smaller in impact fatigue than in non-impact fatigue.

H. Nakayama | T. Tanaka | K. Kimura

[1] H. Nakayama,et al. Study on Crack Growth Behaviors in Impact Fatigue : Part II, Crack Clusure Behavior under Simple Impact Load , 1984 .

[2] 幸雄金山,et al. 衝撃荷重下における疲労き裂進展挙動に関する研究(第3報、2 017-T3アルミニウム合金の衝撃疲労き裂進展挙動について) , 1984 .

[3] H. Nakayama,et al. Study on Crack Growth Behavior in Impact Fatigue : Part 1, Impact Fatigue Crack Growth Characteristics of 0.1%C Aluminum Killed Steel , 1983 .

[4] Shuji Taira,et al. FAILURE MECHANISMS IN IMPACT FATIGUE OF METALS , 1979 .

[5] Hideaki Nakayama,et al. Studies on Impact Fatigue : Part III, Impact Fatigue Investigation on 99.5% Pure Aluminum and Duralumin , 1975 .

[6] Tsuneshichi Tanaka,et al. Studies on Impact Fatigue : part II, Inelastic Behavior of S50C Steel under Impact Fatigue Loads , 1974 .

[7] Hideaki Nakayama,et al. Studies on Impact Fatigue : Part 1, Impact Fatigue Testing Machine and Impact Fatigue on Mild Steel , 1973 .

[8] Tada Hiroshi,et al. A note on the finite width corrections to the stress intensity factor , 1971 .

[9] J. Underwood,et al. Measurement of microscopic plastic-strain distributions in the region of a crack tip , 1969 .

[10] H. Matsumoto,et al. The Impact Stresses Produced in a Suspended Cylindrical Bar Due to a Longitudinal Tensile Impact (the Journal and the Transactions of the Japan Society of Mechanical Engineers) , 1965 .