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Study on Elastic-Plastic Strain Behavior of Notched Specimen : 5 Consideration on Fatigue Life and Cyclic Strain Behavior of Steel under Cyclic Tensil Load


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タイトル: Study on Elastic-Plastic Strain Behavior of Notched Specimen : 5 Consideration on Fatigue Life and Cyclic Strain Behavior of Steel under Cyclic Tensil Load
著者: Shingai, Katsurou
発行日: 1998年 1月
引用: 長崎大学工学部研究報告 Vol.28(50) p.7-13, 1998
抄録: The strains ahead of notches in steel plate specimens have been investigated using strain gages in order to find the relationship between the cyclic strains under cyclic tensile load and the fatigue life in the range of 10^4-10^6 cycles. From the cyclic strains measured, the relationships between strain range, mean strain, plastic zone size and the number of cycles, as well as the strain distribution near notches have been investigated. Two types of cyclic strain behavior near notch roots have been found; in one type the mean strain and the plastic zone increase as the number of cycles increases and in another type the mean strain and the plastic zone remain constant with increasing cycles. The author thinks that these two types of cyclic strain behaviors are effective knowledge to evaluate the fatigue life of notched specimens. The experimental results and their discussion are presented.
URI: http://hdl.handle.net/10069/5013
ISSN: 02860902
資料タイプ: Departmental Bulletin Paper
出現コレクション:第28巻 第50号

引用URI : http://hdl.handle.net/10069/5013

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