Evaluation of Initiation of the Interfacial Debonding in Single Fiber Composite (Energy Balance Method Considering an Energy Dissipation of the Plastic Deformation)
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- KIMURA Souta
- Graduate School of Waseda University
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- KOYANAGI Jun
- Graduate School of Waseda University
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- KAWADA Hiroyuki
- Department of Mechanical and Engineering, Waseda University
Bibliographic Information
- Other Title
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- (Energy Balance Method Considering an Energy Dissipation of the Plastic Deformation)
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Abstract
Fiber-matrix interfacial adhesion in composites is traditionally evaluated by means of a stress-based parameter. Recently, an interfacial energy parameter is suggested to be a valid alternative. However, the energy-based approaches overestimated the energy release rate to initiate the interfacial debonding (interfacial energy), since the plastic deformation in the vicinity of the debonding was neglected for simplicity. An effect of the plastic deformation on the interfacial energy of a fiber-reinforced polymer matrix composite is studied to evaluate the initiation of the interfacial debonding. The fragmentation tests with a model of glass fiber-reinforced vinylester matrix composite were performed, and the interfacial energy with the energy balance method taking into account an energy dissipation of the plastic deformation was calculated. The following results are confirmed; the plastic deformation has a significant influence on the interfacial energy, and the energy balance scheme taking into account the plastic energy dissipation leads to the constant interfacial energy without reference to the amount of the released potential energy. The differences between our model and the previous one are discussed.
Journal
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- JSME International Journal Series A
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JSME International Journal Series A 49 (3), 451-457, 2006
The Japan Society of Mechanical Engineers
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Details 詳細情報について
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- CRID
- 1390282681469129728
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- NII Article ID
- 110004798983
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- NII Book ID
- AA11179396
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- COI
- 1:CAS:528:DC%2BD28XhtVWhurnO
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- ISSN
- 13475363
- 13447912
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- NDL BIB ID
- 7976803
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed