Influence of ductility of resin matrix on fatigue crack propagation for recycled FRTP

Hisao Fukunaga, Akiko Matsumura, Qin Yu, Hideto Suzuki

Research output: Contribution to journalArticlepeer-review


The fatigue reliability of recycled advanced fiber-reinforced thermoplastic resin (FRTP) was examined, with particular attention to the effects of mesoscopic factors on the fatigue crack propagation. The main results obtained were as follows. (1) The recycled PPS materials were inferior in fatigue reliability to recycled PA·66 materials. The `m' values of Paris's law for recycled PPS materials were considerably higher than that of PA·66. FCP properties of recycled PPS materials were unstable. (2) From fractography using SEM, it was found in recycled PPS materials that the reinforced fibers were separated from the brittle resin matrix. Therefore it was understood that the effect of the ductility of resin matrix on the fatigue crack propagation for recycled FRTP was considerable.

Original languageEnglish
Pages (from-to)689-694
Number of pages6
JournalNippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Issue number608
Publication statusPublished - 1997

ASJC Scopus subject areas

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


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