Estimation of the Maximum Crack Length in Creep-Fatigue of SUS 316 L Based on Statistics of Extremes and Image Processing
スポンサーリンク
概要
- 論文の詳細を見る
Strain-controlled creep-fatigue tests were carried out on smooth specimens of austenitic stainless steel SUS 316 L with the strain rate of ε=2×10^<-5>/s in tension and ε=2×10^<-3>/s in compression at 650℃ in air. Replicas of the specimen surface were taken at a constant interval of strain cycles, and the lengths of all the cracks on the entire specimen surface (=628 mm^2) were measured by means of image processing through the life. Based on statistics of extremes, the maximum crack length was estimated using the crack length data taken from the sample area of 16 mm^2, and the estimated maximum length was compared with the measured maximum length. It was found that before initiation of crack coalescence, the estimated value was in good agreement with the measured value. Thus, the limit and usefulness of statistics of extremes in the estimation of the maximum fatigue crack length were shown.
- 一般社団法人日本機械学会の論文
- 1993-01-15
著者
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TAKAMATSU Tohru
Department of Mechanical Systems Engineering, School of Engineering, University of Shiga Prefecture
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Takamatsu Tohru
The University of Electro-Communications
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Ichikawa Masahiro
Department of Mechanical and Control Engineering, The University of Electro-Communications
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Matsumura T
Department Of Mechanical And Control Engineering University Of Electro-communications
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Matsumura Takashi
NEC Corporation
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Sawada Tatsuo
MATSUSHITA Communication Industrial Co., Ltd.
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Ichikawa M
Univ. Electro-communications Tokyo Jpn
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Takamatsu T
Department Of Mechanical Systems Engineering School Of Engineering University Of Shiga Prefecture
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Takamatsu Tohru
Department Of Mechanical And Control Engineering University Of Electro-communications
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Sawada Tatsuo
Matsushita Communication Industrial Co. Ltd.
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Ichikawa Masahiro
Department Of Mechanical And Control Engineering The University Of Electro-communications
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Matsumura T
Gunma Univ. Gunma
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