1726 Couple Fiber Shear 法を用いたガラス繊維/エポキシ樹脂界面破壊機構の微視的検討

概要

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The actual value of interfacial strength often depends on the test method, and the quantitative evaluation of interfacial strength has not yet been established. Couple Fiber Shear Method is a new method to evaluate the fiber/matrix interfacial strength. This model composite is composed of two filaments and one resin pocket, and is suitable for the in-situ microscopic observation. In the present study, fracture behavior of glass fiber/epoxy resin interface was investigated using this method. The influence of thermal stress was considered in the finite element calculations. Experimental results were analyzed using the intensity of stress singularity, K_<ij>. The possibility of the evaluation of the interfacial strength using the parameter, K_<ij>, was discussed.
社団法人日本機械学会の論文
2000-07-31