カーボン/アラミドハイブリッドFRP積層板の曲げ特性の材料設計に関する一考察(<小特集>高分子系複合材料小特集)

概要

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A material design guideline for the flexural behavior of carbon/aramid hybrid unidirectional FRP laminates (C/A hybrid FRP) was studied from the viewpoint of laminate constitution and time-temperature dependence. As the results, it was found that the flexural behavior under static, impact and cyclic loads changed remarkably with laminate constitution, time or temperature and that the flexural fracture patterns were classified clearly into two modes according to laminate constitution and time-temperature dependence. One is the compressive fracture of the most out CFRP layer in the compression side, and the other is the tensile fracture of the surface AFRP layer in the tension side. Furthermore, the temperature dependent flexural behavior of C/A hybrid FRP predected by the laminated beam theory using the mechanical properties of CFRP and AFRP agreed approximately with teh experimental results mentioned above. Therefore, this proposed deformation and failure criteria are applicable to the material design of C/A hybrid FRP.
社団法人日本材料学会の論文
1992-03-15