Development of small bulge fatigue testing technique using small disk-type specimen
Corresponding Author
Shin-ichi Komazaki
Research Field in Engineering, Science and Engineering Area, Research and Education Assembly, Graduate School of Science and Engineering, Kagoshima University, Kagoshima, Japan
Correspondence
Shin-ichi Komazaki, Research Field in Engineering, Science and Engineering Area, Research and Education Assembly, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan.
Email: [email protected]
Search for more papers by this authorRyuichiro Jojima
Division of Mechanical Engineering, Graduate School of Science and Engineering, Kagoshima University, Kagoshima, Japan
Search for more papers by this authorNanna Muraoka
Kobe Material Testing Laboratory, Co., Ltd., Hyogo, Japan
Search for more papers by this authorShuhei Nogami
Department of Quantum Science & Energy Engineering, Graduate School of Engineering, Tohoku University, Sendai, Japan
Search for more papers by this authorMasayuki Kamaya
Institute of Nuclear Safety System, Incorporated, Fukui, Japan
Search for more papers by this authorChiaki Hisaka
Kobe Material Testing Laboratory, Co., Ltd., Hyogo, Japan
Search for more papers by this authorMasaharu Fujiwara
Kobe Material Testing Laboratory, Co., Ltd., Hyogo, Japan
Search for more papers by this authorAkito Nitta
Kobe Material Testing Laboratory, Co., Ltd., Tokyo, Japan
Search for more papers by this authorCorresponding Author
Shin-ichi Komazaki
Research Field in Engineering, Science and Engineering Area, Research and Education Assembly, Graduate School of Science and Engineering, Kagoshima University, Kagoshima, Japan
Correspondence
Shin-ichi Komazaki, Research Field in Engineering, Science and Engineering Area, Research and Education Assembly, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan.
Email: [email protected]
Search for more papers by this authorRyuichiro Jojima
Division of Mechanical Engineering, Graduate School of Science and Engineering, Kagoshima University, Kagoshima, Japan
Search for more papers by this authorNanna Muraoka
Kobe Material Testing Laboratory, Co., Ltd., Hyogo, Japan
Search for more papers by this authorShuhei Nogami
Department of Quantum Science & Energy Engineering, Graduate School of Engineering, Tohoku University, Sendai, Japan
Search for more papers by this authorMasayuki Kamaya
Institute of Nuclear Safety System, Incorporated, Fukui, Japan
Search for more papers by this authorChiaki Hisaka
Kobe Material Testing Laboratory, Co., Ltd., Hyogo, Japan
Search for more papers by this authorMasaharu Fujiwara
Kobe Material Testing Laboratory, Co., Ltd., Hyogo, Japan
Search for more papers by this authorAkito Nitta
Kobe Material Testing Laboratory, Co., Ltd., Tokyo, Japan
Search for more papers by this authorAbstract
A new fatigue testing technique, the small bulge fatigue (SBF) test using a small disk-type specimen with flat and concave surfaces, was developed in this study. In the technique, a cyclic oil pressure could be alternatively applied to both specimen surfaces at the frequency of 10 Hz. After some verification tests for the displacement and strain measurements, type 316 austenitic stainless steel specimens were subjected to a preliminary test using this newly developed testing technique. As a result, the SBF test results (S-N curve) were in good agreement with those of conventional fatigue tests by defining fatigue life as the number of cycles to the sudden drop in oil pressure because of fracture.
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