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Title :ひずみ干渉法による疲労き裂開閉口点の測定 : ひずみ干渉法の実用性について
Title alternative :A Measurement of Fatigue Crack Tip Opening and Closing Points by Means of Strain Interference Method : On Practicality of Strain Interference Method
Authors :真壁, 朝敏
西田, 新一
兼城, 英夫
大場, 克巳
屋良, 秀夫
Authors alternative :Makabe, Chobin
Nishida, Shin-ichi
Kaneshiro, Hideo
Ohba, Katsumi
Yara, Hideo
Issue Date :25-Jun-1991
Abstract :The measurement of fatigue crack tip opening stress σ_<op> and closing stress σ_<cl> occurring in actual equipment is generally very difficult. This is the reason why the range of effective stress intensity factor is not sufficiently applied to the fatigue crack propagation behavior of actual equipment. In this study, the measurement of σ_<op> and σ_<cl> in large size specimen is carried out by means of the strain interference method and the crack opening and closing points of long crack are successfully measured. Futhermore, σ_<op> and σ_<cl> in a specimen subjected to a rotating bending stress is measured. From these experimental results, the strain interference method is expected to be applicable to the measurement of σ_<op> and σ_<cl> in actual equipment.
Type Local :雑誌掲載論文
ISSN :03875008
Publisher :日本機械学会
URI :http://hdl.handle.net/20.500.12000/223
Citation :日本機械学会論文集. A編 = Transactions of the Japan Society of Mechanical Engineers. A Vol.57 no.538 p.22 -27
Appears in Collections:Peer-reviewed Journal Articles (Faculty of Engineering)

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