2009 ラマン分光法を用いた長繊維強化複合材料の相応力評価(G03-2 測定・検出・評価技術(2),G03 材料力学)

概要

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In this study, stresses of carbon fiber in FRP were measured by Raman micro spectroscopy. In order to measure stresses, tensile tests of single carbon fiber with 4.4μm in diameter were conducted by micro tensile testing machine, and the relationships between Raman shift change and applied stress were obtained. The relationship of 2700cm^<-1> peak indicated the most high stress resolution and the good linearity. Therefore, this relationship was used to determine residual stresses and the stresses in FRP under tensile loading. The stresses in FRP under tensile loading were good agreement with those by the gage method. In addition, the residual stresses were determined by the Raman micro spectroscopy. For six different points, the residual stress of carbon fiber in 4〜7μm depth from the specimen surface was measured. Maximum residual stresses were compressive and 534.16MPa.
社団法人日本機械学会の論文
2007-09-07