材料
Online ISSN : 1880-7488
Print ISSN : 0514-5163
ISSN-L : 0514-5163
溶接構造用圧延鋼材の円孔切欠き部の低サイクル疲労挙動
森本 精洋齊藤 渥松本 〓一松島 淳
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1996 年 45 巻 1 号 p. 21-25

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Large structures are usually constructed using the conventional low-carbon steel and often contain many kinds of discontinuous cross sections or initial defects. The fatigue cracks commonly initiate at these sites under repeated loadings. So, the estimation of low-cycle fatigue life of the notched components is significantly important in the design of structures.
In this study, the low-cycle fatigue tests were carried out using the smooth round bar specimens and the notched plate specimens machined from the hot rolled low-carbon steel sheets of SM400A, SM400B and SM490A. After analyzing the experimental data, the estimating method of low-cycle fatigue life of notched specimens was proposed.

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