Mechanical Properties of Composite Materials Made of 3D Stitched Woven-knitted Preforms
Autor: | Mário Duarte de Araújo, Raúl Fangueiro, Mingxing Zhang, Hong Hu |
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Přispěvatelé: | Universidade do Minho |
Rok vydání: | 2010 |
Předmět: |
Polyester resin
Materials science Transfer molding Composite number Mechanical properties 02 engineering and technology Kevlar 010402 general chemistry 01 natural sciences Woven fabric impact behavior Ultimate tensile strength Materials Chemistry stress/strain curves Composite material Thermoforming Tensile testing chemistry.chemical_classification Science & Technology Mechanical Engineering 021001 nanoscience & nanotechnology textile composites 0104 chemical sciences 3D stitched woven-knitted preforms chemistry Mechanics of Materials Ceramics and Composites 0210 nano-technology |
Zdroj: | Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP |
ISSN: | 1530-793X 0021-9983 |
DOI: | 10.1177/0021998309359211 |
Popis: | This article presents an experimental investigation carried out to understand the mechanical behavior of composite materials made of 3D stitched woven-knitted basalt fabrics. The innovative preforms used consist of two outer layers of a plain woven fabric combined with two inner layers of weft-knitted fabrics. The weft-knitted fabrics selected for the study were varied plain knit, 1 × 1 rib, Milano, and interlock. The fabric layers were stitched together with Kevlar yarns. These 3D stitched preforms were impregnated with polyester resin using resin transfer molding, and the corresponding composites obtained were tested under tensile, bending, and impact loads. The results obtained show that the type of knitted structure significantly influences the mechanical performance of the 3D stitched woven-knitted composites. The composite using interlock structure as the inner layers has the best results concerning energy absorption and tensile strength. The varied plain knit structure has proved to be the best suited to impart stiffness as it provides the highest Young’s modulus among the above four knitted structures. The authors wish to thank the European Commission for awarding research funds under the EU Asia-link program (Project No. 82158), the University of Minho in Portugal and Donghua University in China, for providing research facilities. |
Databáze: | OpenAIRE |
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