Relation between Viscosity and Flow Characteristics in Uni-directional CF/PA6 Laminates near the Melting Point
| Autor: | Masaki Hojo, Naoki Kitaguchi, Manato Kanesaki, Masaaki Nishikawa |
|---|---|
| Jazyk: | japonština |
| Rok vydání: | 2018 |
| Předmět: |
Thermoplastic
Materials science Power-law fluid Flow (psychology) 02 engineering and technology Physics::Fluid Dynamics Viscosity 0203 mechanical engineering Thermal Composite material CFRTP chemistry.chemical_classification Fusion FEM Mechanical Engineering 021001 nanoscience & nanotechnology Finite element method 020303 mechanical engineering & transports chemistry In situ observation Mechanics of Materials Ceramics and Composites Melting point Power law fluid 0210 nano-technology |
| Zdroj: | 日本複合材料学会誌. 44(5):173-182 |
| ISSN: | 0385-2563 |
| Popis: | In this study, the viscosity of unidirectional CFRTP laminates near the melting point was evaluated to discuss the relationship between the thermal fusion conditions and the flow of fiber and matrix. The laminates were regarded as a fluid flowing in a direction perpendicular to the fiber. The microscopic flow of the fiber and matrix near the melting point was observed during a parallel plate compression test. Based on this observation, viscosity and flow properties were evaluated by the finite element method. The results of the parallel plate compression test showed that the test conditions and the decrease in the thickness of the laminates are related to the apparent viscosity of the unidirectional plate. In addition, cracks in the direction of the maximum shear stress were detected via in situ observation near the melting point of the matrix. The occurrence of this phenomenon depended on the apparent viscosity of the unidirectional laminates and it was found that no cracks occurred when the apparent maximum viscosity of the unidirectional laminates was lower than a certain threshold. |
| Databáze: | OpenAIRE |
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