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| Title | : | ひずみゲージを用いた疲労き裂開閉口点の測定法について |
| Title alternative | : | A Measurement Method of Crack Tip Opening and Closing in Fatigue by Means of Strain Gauge |
| Authors | : | 真壁, 朝敏
兼城, 英夫
糸数, 真哉
屋富祖, 建樹 |
| Authors alternative | : | Makabe, Chobin
Kaneshiro, Hideo
Itokazu, Masaya
Yafuso, Tateki |
| Issue Date | : | 25-Jun-1990 |
| Abstract | : | Effective stress intensity factor range ΔK_<eff> and the J integral range ΔJ which are determined by the crack tip opening or closing point are considered as the likely parameters controling crack propagation behavior. Therefore, a development of the simple measurement method of crack tip opening and closing is considered to be important for the evaluation of crack propagation. In this study, for an elastic-plastic condition in a center-cracked plate, it is proposed that the crack tip opening and closing point can be simply determined with the σ-(ε_y-α)/(ε_x+α) diagram and σ-ε_y diagram, where σ is the cyclic stress, ε_y and ε_x are the strains measured in the vicinity of the crack center by means of a strain gauge and a is a constant value. Then this measurement method is compared with results obtained by finite element method calculations. |
| Type Local | : | 雑誌掲載論文 |
| ISSN | : | 03875008 |
| Publisher | : | 日本機械学会 |
| URI | : | http://hdl.handle.net/20.500.12000/214 |
| Citation | : | 日本機械学会論文集. A編 = Transactions of the Japan Society of Mechanical Engineers. A Vol.56 no.526 p.36 -41 |
| Appears in Collections | : | Peer-reviewed Journal Articles (Faculty of Engineering)
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| kaneshiro_h16.pdf | | 512Kb | Adobe PDF | View/Open |
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