引張り/ねじり組合せ荷重下における平織りGFRPの疲労に関する研究 : 疲労特性に及ぼすせん断応力(荷重条件)の影響

概要

論文の詳細を見る
Fatigue strength and stress-strain response of plain woven glass fabric laminates subjected to combined loadings with pulasating tension and alternate torsion were investigated in this study. To distinguish the difference of fatigue failure behavior between that under pulsating torsion loading and that under alternate torsion loading, the alternate torsion test was also conducted. Fatigue strength and stress-strain response under alternate torsion loading were compared with that under pulsating torsion loading. From the experiment, it is found that the normalized fatigue strength (which is cyclic biaxial stress divided by the static strength) under pulsating tension/alternate torsion combined loading is dependent on the biaxial stress ratio. The fatigue strength under alternate torsion loading is much lower than that under pulsating torsion loading. The stress-strain response also shows nonlinear behavior more strongly than that under pulsating torsion loading.
1994-03-25