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

Takeru Kagawa; Mitsugu Todo; Yasuharu Takenoshita; Akira Myoui

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 proceeding › Conference 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 language	English
Title of host publication	Proceedings of the 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness
Subtitle of host publication	From Green Composites to Aerospace"
Publisher	International Committee on Composite Materials
ISBN (Print)	9784931136052
Publication status	Published - 2007

Publication series

Name	ICCM International Conferences on Composite Materials

All Science Journal Classification (ASJC) codes

Engineering(all)
Ceramics and Composites

Cite this

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" (ICCM International Conferences on Composite Materials). International Committee on Composite Materials.

Effect of press process on the fracture behavior of HA/PLLA biocomposite material. / Kagawa, Takeru; Todo, Mitsugu; Takenoshita, Yasuharu et al.
Proceedings of the 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace". International Committee on Composite Materials, 2007. (ICCM International Conferences on Composite Materials).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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". ICCM International Conferences on Composite Materials, International Committee on Composite Materials.

Kagawa T, Todo M, Takenoshita Y, Myoui A. 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". International Committee on Composite Materials. 2007. (ICCM International Conferences on Composite Materials).

Kagawa, Takeru ; Todo, Mitsugu ; Takenoshita, Yasuharu et al. / Effect of press process on the fracture behavior of HA/PLLA biocomposite material. Proceedings of the 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace". International Committee on Composite Materials, 2007. (ICCM International Conferences on Composite Materials).

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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.",

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AB - 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.

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

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