GFRP/Metalボルト継手の温度環境下における疲労寿命の予測

概要

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A prediction method for the fatigue life of polymer composites under arbitrary frequency, load ratio and temperature was extended to that of polymer composite structures. The method is based upon four hypotheses:(A)the same mechanism applies to static, creep and fatigue failure, (B) the same time-temperature superposition principle holds for all failure loads, (C)the linear cumulative damage low applies to monotonic loading, and (D)there exists a linear dependence of fatigue failure load upon load ratio. The tensile tests of a bolted joint system for fiber reinforced plastics(FRP joint)under static, creep and fatigue loadings were conducted at various temperatures. The validity of the proposed method and the applicability of the hypotheses for this FRP joint are discussed.
一般社団法人日本機械学会の論文
2000-12-25