Journal of the Japan Society for Composite Materials
Online ISSN : 1884-8559
Print ISSN : 0385-2563
ISSN-L : 0385-2563
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Volume 30, Issue 3
Displaying 1-7 of 7 articles from this issue
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  • [title in Japanese]
    Yoshinori TAKAHASHI
    2004 Volume 30 Issue 3 Pages 91-95
    Published: May 15, 2004
    Released on J-STAGE: August 11, 2009
    DOIhttps://doi.org/10.6089/jscm.30.91
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    Teruo KIMURA
    2004 Volume 30 Issue 3 Pages 95-101
    Published: May 15, 2004
    Released on J-STAGE: August 11, 2009
    DOIhttps://doi.org/10.6089/jscm.30.95
    JOURNAL FREE ACCESS
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  • Fundamental Investigation on the Bearing Strength of a CF/Epoxy Pinned Joint under Various Temperatures
    Noriyoshi HIRANO, Yoshihiro TAKAO, Terutake MATSUBARA, Wen-Xue WANG
    2004 Volume 30 Issue 3 Pages 102-110
    Published: May 15, 2004
    Released on J-STAGE: August 11, 2009
    DOIhttps://doi.org/10.6089/jscm.30.102
    JOURNAL FREE ACCESS
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    Effects of temperature on the pinned joint bearing strength and damages of composite laminates are investigated experimentally. The material used in this study is CF/Epoxy T800H/#3631 (Toray) with stacking sequences of quasi-isotropic [0/45/-45/90]3S and [90/-45/45/0]3S. A semi-circular notched specimen is adopted instead of the well-known double lap joint specimen recommended by JIS and ASTM standards. The present smaller specimen has the advantage in heat retention and material cost. In addition, it simplifies the damage analysis since only the bearing failure occurs. Loading tests are conducted at room (25°C), high (150°C) and low (-100°C) temperatures to obtain the load-displacement response, bearing strength and external damages. Moreover, the threedimensional evolution of microscopic damages is observed in detail and the characteristic relationship between the internal damages and environmental temperatures is discussed.
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  • Estimation of Impact Damage in 2D-C/C Composites
    Takakazu YOSHIOKA, Ichiro TAKAHASHI
    2004 Volume 30 Issue 3 Pages 111-119
    Published: May 15, 2004
    Released on J-STAGE: August 11, 2009
    DOIhttps://doi.org/10.6089/jscm.30.111
    JOURNAL FREE ACCESS
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    Due to low impact strength of C/C, it is important to evaluate impact damage properties and impact strength. In this study, the relationship between the impact load and displacement, absorbed energy of 2D-C/C specimens in a drop weight impact test are utilized for the estimation of the damage. The measured impact load is decomposed in approximation components and detail components, and is reduced higher mode of vibration by multiple resolution analysis in wavelet transform. The results are as follows: 1) It is effective for evaluating the damage zone and the initiation by using the impact load-deflection diagram and the absorbed energy. 2) The Daubechies' wavelet is useful for smoothing the impact load signals.
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  • Evaluation of Young's Modulus of Plain Weave Carbon Fiber Reinforced Plastics
    Hiromasa ADACHI, Teruo HASEGAWA
    2004 Volume 30 Issue 3 Pages 120-125
    Published: May 15, 2004
    Released on J-STAGE: August 11, 2009
    DOIhttps://doi.org/10.6089/jscm.30.120
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    Yoshitaka HOYA, Atsushi OKA, Hitoshi KATSUYAMA, Yuji MATUI, Hiroaki TO ...
    2004 Volume 30 Issue 3 Pages 126-129
    Published: May 15, 2004
    Released on J-STAGE: August 11, 2009
    DOIhttps://doi.org/10.6089/jscm.30.126
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    Takeshi MIYATA, Kiyoshi UZAWA, Toru KAMITA, Hirotaka IGAWA, KOZO NISHI ...
    2004 Volume 30 Issue 3 Pages 129-131
    Published: May 15, 2004
    Released on J-STAGE: August 11, 2009
    DOIhttps://doi.org/10.6089/jscm.30.129
    JOURNAL FREE ACCESS
    Download PDF (3902K)
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