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 7, Issue 4
Displaying 1-7 of 7 articles from this issue
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  • [title in Japanese]
    Yoshinori FUJIKI
    1981 Volume 7 Issue 4 Pages 131-139
    Published: October 31, 1981
    Released on J-STAGE: August 11, 2009
    DOIhttps://doi.org/10.6089/jscm.7.131
    JOURNAL FREE ACCESS
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  • Workability of Helical Fiber Reinforced Composite Metal
    Y. KAGAWA, Y. OISHI, S. YOSHIDA, E. NAKATA
    1981 Volume 7 Issue 4 Pages 140-146
    Published: October 31, 1981
    Released on J-STAGE: August 11, 2009
    DOIhttps://doi.org/10.6089/jscm.7.140
    JOURNAL FREE ACCESS
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    An investigation was carried out on the workability of helical tungsten fiber reinforced Zn-22wt%Al alloy matrix composites prepared by squeeze casting technique. These composites, reinforced with fibers with different helical angles, were hot-rolled along the fiber axis to re-ductions in thickness of 50, 75, and 87.5%. Fiber deformation in the matrix, tensile strength of the hot-rolled composites, and appearance of fracture surface of the tensile specimens were discussed in relation to helical angle of the fibers or to reduction in thickness of the composites. The results indicate that the employment of helical fibers as reinforcement enables the composites being hot rolled. Workability of the composites was markedly influenced by both helical angle of the fibers and reduction in thickness by hot rolling. With the same reduction in thickness, smaller helical angle was desirable for reducing damages to the fibers, whereas with the same helical angle, tensile strength of the hot-rolled composite varies with amount of reduction of the composites. These results can be explained in terms of the differences in deformability of the helical tungsten fibers in the matrix and fracture probability of the fibers during rolling.
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  • Photoelastic Analysis of the Effect of Residual Stress on the Deformation of Unidirectional Glass Fiber Reinforced Plastics at the Wedge Indentation
    H. INOUE, M. IDO
    1981 Volume 7 Issue 4 Pages 147-153
    Published: October 31, 1981
    Released on J-STAGE: August 11, 2009
    DOIhttps://doi.org/10.6089/jscm.7.147
    JOURNAL FREE ACCESS
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    The deformation of unidirectional glass fiber reinforced plastic materials at the wedge indentation was studied by means of photoelastic method. The experimental results indicate that the photoelastic fringe was strongly affected by the inclination angle of yarn, while not affected by the shape of wedge indenter in the range of small indenting depth. Matrix and yarn have some residual stress which is caused during the cure of the specimen. It is natural to consider that the residual stress in the specimen strongly affects the shapes of photoelastic fringe. Such residual stress was taken into consideration in the theoretical analysis of the behavior of wedge indentation of FRP. Both isotropic and orthotropic cases were calculated under two dimensional plane stress condition. The results of theoretical analysis have a good agreement with the experimental results.
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  • [title in Japanese]
    Masuji UEMURA
    1981 Volume 7 Issue 4 Pages 154-161
    Published: October 31, 1981
    Released on J-STAGE: August 11, 2009
    DOIhttps://doi.org/10.6089/jscm.7.154
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    Shoji SIMAMURA
    1981 Volume 7 Issue 4 Pages 162-165
    Published: October 31, 1981
    Released on J-STAGE: August 11, 2009
    DOIhttps://doi.org/10.6089/jscm.7.162
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    Kozo KAWATA
    1981 Volume 7 Issue 4 Pages 166-167
    Published: October 31, 1981
    Released on J-STAGE: August 11, 2009
    DOIhttps://doi.org/10.6089/jscm.7.166
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    1981 Volume 7 Issue 4 Pages 168-171
    Published: October 31, 1981
    Released on J-STAGE: February 08, 2010
    DOIhttps://doi.org/10.6089/jscm.7.168
    JOURNAL FREE ACCESS
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