書誌事項
- タイトル別名
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- Evaluation of the Fiber Stress Distribution in Aramid/Epoxy Model Composite using Micro-Raman Spectroscopy and FEM Analysis
- ケンビラマン ブンコウ ニ ヨル アラミドタンセンイ ヒキヌキ カテイ ノ センイ オウリョク ブンプ ソクテイ ト FEM カイセキ
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A single-fiber pull-out model composite tor an aramid/epoxy system was specially designed to measure the stress distribution of the aramid fiber embedded in the matrix using micro-Raman spectroscopy. The stress transfer length of the fiber obtained was about 400-500 μm, which was equal to the result of FEM analysis. Just after the initiation and propagation of the fiber/matrix interfacial debonding, the fiber was broken, and the fiber in the matrix had the axial tensile residual stress. The tensile residual fiber axial stress showed the maximum at around the tip of the interfacial debonding. The stress was reduced after the specimen was kept in air at 80°C for 44h, and it became almost equal to zero after being immersed in deionized water at 80°C for 44h. This behavior agreed with the result of FEM analysis, in which the friction coefficient was introduced in the fiber/matrix interface. The axial residual stress was caused by the friction between the fiber and matrix, due to the compressive stress acting between the resin and the fiber, which was caused by the difference of the coefficient of thermal expansion.
収録刊行物
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- 日本機械学会論文集A編
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日本機械学会論文集A編 71 (712), 1639-1645, 2005
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390001204476926080
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- NII論文ID
- 110004999129
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- NII書誌ID
- AN0018742X
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- COI
- 1:CAS:528:DC%2BD28XhslCju74%3D
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- ISSN
- 18848338
- 03875008
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- NDL書誌ID
- 7776908
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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- 抄録ライセンスフラグ
- 使用不可