Impact Fatigue Properties of Epoxy Resin Filled with SiO2 Particles

Kiyoshi Uwai, Mitsuo Niinomi, Toshiro Kobayashi, Atsushi Okahara

Research output: Contribution to journalArticlepeer-review


The impact fatigue test was carried out on an epoxy resin filled with SiO2 particles. The effect of the SiO2 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 strength at can be estimated by the formula of σt (NfTe)mt=Dt, where NtTe is the cumulative duration time, and mt and Dt are parameters of the impact fatigue properties. The impact fatigue strength and static strength were governed by the content ratio of the SiO2 particles. The crack initiated by decohesion at the epoxy-SiO2 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 SiO2 particles.

Original languageEnglish
Pages (from-to)1036-1040
Number of pages5
JournalTransactions of the Japan Society of Mechanical Engineers Series A
Issue number513
Publication statusPublished - 1989


  • Fracture
  • Fracture Surface
  • Impact Fatigue
  • Law of Mixture Epoxy Resin Filled with SiO Particles
  • S-N Curve

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering


Dive into the research topics of 'Impact Fatigue Properties of Epoxy Resin Filled with SiO2 Particles'. Together they form a unique fingerprint.

Cite this