3423 単純引張および低サイクル疲労における降伏挙動の比較(G03-2 疲労,G03 材料力学)

概要

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In order to obtain data from the viewpoint of non-destructive inspection about a fatigue damage, we applied a low cyclic load in a strain-controled mode with carbon steel plate specimens and observed the surface change. we also applied a monotonic tensile load in the strain-controled mode, and compared it with a low cyclic load. The results obtained are as follows. Stress-Strain Diagram and Cyclic stress-Strain Diagram were accorded in elastic region, and was different after the yielding point. In addition, we were able to confirm that two tests were different in a pattern of Luders band which appeared on the specimen surface in correspondence with yielding stress. Furthermore, we analyzed stress with FEM and compared it with a pattern of Luders band.
一般社団法人日本機械学会の論文
2006-09-15