Search Results:　 1-10 of 10

YAMAMOTO Koji , MORIMOTO Tetsuya , OGIHARA Shinji

… The potential in the strength improvement has been discussed for an imaginary fiber, which does not contain the characteristic crack sources. …

日本機械学会関東支部総会講演会講演論文集 2005(11), 195-196, 2005-03-17

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ZHOU Hai , IZUMI Teruyuki , WATANABE Kenji

… This paper describes a study on crack detection of roof tiles by using damping factor of the vibration response with impact test. … The envelope of response is obtained from the analytic signal that has a real part which is the vibration response and an imaginary part which contains the Hilbert transform. … Damping ratio for several natural frequencies of a roof tile become large greatly by a crack. …

Symposium on Evaluation and Diagnosis 2003(2), 79-83, 2003-12-02

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Shimamura Yoshinobu , Todoroki Akira , Kobayashl Hideo

… As a result, the distribution of the matrix crack positions was experimentally proven to be a fractal distribution of D = 0.45 and was constant at any loading levels. … Using this fractal distribution, the stiffness degradation was evaluated based on an imaginary crack density. … The model was applied successfully to predict variations of crack density with increasing applied load using damage mechanics. …

JSME international journal. Ser. A, Mechanics and material engineering 38-A(4), 446-452, 1995-10-15

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Shimamura Yoshinobu , Todoroki Akira , Kobayashi Hideo

… As a result, the distributions of the matrix crack position were experimentally proven to be fractal distributions of D=0.45 and is constant at any loading levels. … By using these fractal distributions, the stiffness degradation was evaluated based on an imaginary crack density induced by the Renormalization Group Theory. …

Transactions of the Japan Society of Mechanical Engineers. A 60(572), 972-977, 1994-04-25

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CHEN Dai-heng , NISHITANI Hironobu , MORI Kazuya

… In this paper, the surface crack problem in a cylinder subjected to internal pressure is solved. … That is, the body forces to be continuously distributed on the imaginary cylindrical boundaries are approximated by some discrete point forces acting on the outside of the imaginary boundaries. …

Transactions of the Japan Society of Mechanical Engineers. A 55(515), 1532-1536, 1989-07-25

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