シリカ粒子充てんエポキシ樹脂の衝撃疲労特性

概要

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The impact fatigue test was carried out on an epoxy resin filled with Si0_2 particles. The effect of the Si0_2 content ratio on the impact fatigue strength and the effect of the impact repeating speed and the life to failure on fracture surface morphology were examined. The impact fatigue strengthσ_t can be estimated by the formula of σ_t (N_fT_e)^mt =D_t, where N_fT_e. is the cumulative duration time, and mt and D_t are parameters of the impact fatigue properties. The impact fatigue strength and static strength were governed by the content ratio of the Si02 particles. The crack initiated by decohesion at the epoxy-Si0_2 interface and the stable crack grew along this interface under the monotonic and the impact repeated loading conditions. During the unstable fracture, however, the crack propagated regardless of the existence of the Si0_2 particles.
一般社団法人日本機械学会の論文
1989-05-25