Investigation of Crack Suppression Mechanism of Thin Ply CFRP Cross-ply Laminate by Cohesive Element Method
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- TAKEUCHI Hiroki
- SAKAI OVEX CO., LTD
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- SAITO Hiroshi
- Research Laboratory for Integrated Technological Systems, Kanazawa Institute of Technology
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- KIMPARA Isao
- Research Laboratory for Integrated Technological Systems, Kanazawa Institute of Technology
Bibliographic Information
- Other Title
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- 結合力要素法による薄層CFRP直交積層板のき裂進展抑制メカニズムの検討
Abstract
In this study, the crack suppression mechanism in the thin-ply laminate was discussed by the mesoscopic finite element analysis. The intraply crack extension in the thin ply 90° layer, which has the thickness from 40 to 150 μm, was simulated with the cohesive element. In addition, the effect of initial defect on the crack extension behavior was also discussed. The crack extension behavior showed good agreement with the experimental results in any ply thickness for 6 J/m2 was applied to the cohesive energy. The crack initiation strain was not influenced by the existence of the initial defect up to 10 μm length. However the crack initiation strain was not influenced by the ply thickness, the crack penetration strain tended to increase with decrease of ply thickness.
Journal
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- Journal of the Japan Society for Composite Materials
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Journal of the Japan Society for Composite Materials 38 (1), 30-37, 2012
The Japan Society for Composite Materials
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Details 詳細情報について
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- CRID
- 1390282679600575360
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- NII Article ID
- 130003305444
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- COI
- 1:CAS:528:DC%2BC38XlslaqsbY%3D
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- ISSN
- 18848559
- 03852563
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed