Journal of the Japan Society for Composite Materials

[title in Japanese]

[in Japanese]

1991 Volume 17 Issue 1 Pages 1-2
Published: January 15, 1991
Released on J-STAGE: August 11, 2009

DOIhttps://doi.org/10.6089/jscm.17.1

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[title in Japanese]

Etsuji IWAMI

1991 Volume 17 Issue 1 Pages 3-14
Published: January 15, 1991
Released on J-STAGE: August 11, 2009

DOIhttps://doi.org/10.6089/jscm.17.3

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[title in Japanese]

Noriaki SUGAHARA

1991 Volume 17 Issue 1 Pages 15-23
Published: January 15, 1991
Released on J-STAGE: August 11, 2009

DOIhttps://doi.org/10.6089/jscm.17.15

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[title in Japanese]

Takemi YAMAMURA

1991 Volume 17 Issue 1 Pages 24-31
Published: January 15, 1991
Released on J-STAGE: August 11, 2009

DOIhttps://doi.org/10.6089/jscm.17.24

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[title in Japanese]

[in Japanese]

1991 Volume 17 Issue 1 Pages 31a
Published: January 15, 1991
Released on J-STAGE: August 11, 2009

DOIhttps://doi.org/10.6089/jscm.17.31a

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Strength Evaluation of Composite Laminate under Biaxial Loading : Configuration and Stress Distribution of a Crossed Specimen

H. ISHIKAWA, I. SUSUKI

1991 Volume 17 Issue 1 Pages 32-37
Published: January 15, 1991
Released on J-STAGE: August 11, 2009

DOIhttps://doi.org/10.6089/jscm.17.32

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As a basic investigation of the static or fatigue strength of the composite laminates under the combined loading, the configuration and the stress distribution of the specimen to be used in the investigation are examined. The stress distribution of the crossed specimen with a stacking sequence of a laminate is analysed by the finite element method, and the effects of the root radius of the crossed portion, width and stiffened plates of the specimen under various kinds of the biaxial loading on the stress distribution are discussed. From the numerical results, the recommended informations to design the crossed specimen are obtained.

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Large Deformation of CFRP Elliptic Ring

M. KATOH, T. AKASAKA, A. OKUBO

1991 Volume 17 Issue 1 Pages 38-42
Published: January 15, 1991
Released on J-STAGE: August 11, 2009

DOIhttps://doi.org/10.6089/jscm.17.38

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Elliptic rings fabricated with carbon-fiber-reinforced thermoplastics (CFRP) have been studied to be available for a new spring element of the car suspension system. Recently, Akasaka et al. evaluated five kinds of spring constant of elliptic ring under different loadings, by using the energy method. No theoretical analysis, however, has been conducted yet on large deformation behavior of the CFRP elliptic ring. In this paper, we studied the large deformation characteristics and the stress distribution of the ring. By applying the collocation method, we obtained approximately deflected curves of the ring under the axial compressive load in the vertical direction. Experimenth were conducted for two elliptic rings with the same dimension. Comparison between the experimental and the predicted results of the deformed configuration and the stress distribution for each specimen showed a good correspondence.

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