Mechanics of fiber fragmentation in single-fiber composite

Masaaki Nishikawa, Tomonaga Okabe, Nobuo Takeda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We investigate the fragmentation process in a single-fiber composite (SFC), using a cohesive zone model. The evolution of microscopic damage near a fiber break has been investigated in detail. The results indicate that cohesive parameters for the fiber-matrix interface control the microscopic damage near a fiber break and the fragmentation process. We discuss how the major damage mode near a fiber break transits from interfacial debonding to matrix cracking. The transition to a damage pattern dominated by matrix cracking makes it difficult to use the fragmentation process to evaluate interface properties in an SFC test. The discussion demonstrates that the fiber strength distribution can be obtained by fitting the fragmentation process while the estimation of interfacial properties based on SFC tests becomes difficult because of the damage transition to matrix cracking in the case of strong interface.

Original languageEnglish
Title of host publicationProceedings of the 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness
Subtitle of host publicationFrom Green Composites to Aerospace"
Publication statusPublished - 2007 Dec 1
Event16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace" - Kyoto, Japan
Duration: 2007 Jul 82007 Jul 13

Publication series

NameICCM International Conferences on Composite Materials

Other

Other16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace"
CountryJapan
CityKyoto
Period07/7/807/7/13

Keywords

  • Cohesive zone model
  • Fiber-reinforced polymer matrix composites
  • Interface properties
  • Microscopic damage
  • Single-fiber composite

ASJC Scopus subject areas

  • Engineering(all)
  • Ceramics and Composites

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  • Cite this

    Nishikawa, M., Okabe, T., & Takeda, N. (2007). Mechanics of fiber fragmentation in single-fiber composite. In Proceedings of the 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace" (ICCM International Conferences on Composite Materials).