Effect of press process on the fracture behavior of HA/PLLA biocomposite material

Takeru Kagawa, Mitsugu Todo, Yasuharu Takenoshita, Akira Myoui

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

Abstract

Press process was performed in order to toughen HA/PLLA bio-composite material. Mode I fracture properties and bending mechanical properties of forged and unforged HA/PLLA were then evaluated to assess the effect of press process on these properties. FE-SEM was also used to characterize the toughening mechanism due to press. Testing results showed that the bending strength and modulus slightly increased due to press; on the other hand, the bending absorbed energy and the mode I fracture property dramatically improved. FE-SEM observation of the fracture surfaces showed that ductile deformation and fracture of PLLA fibrils were enhanced and in addition, interfacial cohesion strength was improved. These microstructural modifications appear to result in the toughness improvement.

Original languageEnglish
Title of host publicationProceedings of the 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace"
Publication statusPublished - 2007
Event16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace" - Kyoto, Japan
Duration: Jul 8 2007Jul 13 2007

Other

Other16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace"
CountryJapan
CityKyoto
Period7/8/077/13/07

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Ceramics and Composites

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    Kagawa, T., Todo, M., Takenoshita, Y., & Myoui, A. (2007). Effect of press process on the fracture behavior of HA/PLLA biocomposite material. In Proceedings of the 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace"