異方性 FRP の疲労特性および繊維に対する予応力の影響

概要

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An investigation was conducted on the fatigue properties of glass fiber-reinforced plastics, especially on the effects of fiber orientation and volume content of glass fiber in the specimen. The material used was a FRP laminate consisting of polyester resin as the matrix and plain woven glass cloth as the reinforcement. Sufficient data have been obtained to produce the master diagram for this material. An empirical equation is proposed to predict the fatigue limit of off-axis specimens as a function of mean stress The applicability of static failure criterion to the off-axis FRP materials subjected to cyclic load is examined by employing a modification factor. In addition, the potential advantage of prestressing the reinforcement prior to its bonding to the matrix in FRP materials is investigated.
社団法人日本材料学会の論文
1974-11-15