Stitching Effect on Flexural and Interlaminar Properties of MWK Textile Composites

Joon-Hyung Byun; Yi-Qi Wang; 엄문광; 이상관; 송정일; 김병선

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자료유형: 학술저널

저자정보: Joon-Hyung Byun Yi-Qi Wang 엄문광 이상관 송정일 김병선

저널정보: 한국복합재료학회 Composites Research Composites Research 제28권 제3호

발행연도: 2015.1

수록면: 136 - 141 (6page)

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The stitching process has been widely utilized for the improvement of through-thickness property of the conventional laminated composites. This paper reports the effects of stitching on the flexural and interlaminar shear properties of multi-axial warp knitted (MWK) composites in order to identify the mechanical property improvements. In order to minimize the geometric uncertainties associated with the stacking pattern of fabrics, the regular lay-up was considered in the examination of the stitching effect. The key parameters are as follows: the stitch spacings, the stitching types, the stitching location, and the location of compression fixture nose. These parameters have little effect on the flexural and interlaminar shear properties, except for the case of stitching location. However, the geometry variations caused by the stitching resulted in minor changes to the mechanical properties consistently. Stitching on the 0o fibers showed the lowest flexural strength and modulus (12% reduction for both properties). The stitch spacing of 5 mm resulted in 8% reduction for the case of interlaminar strength compared with that of 10 mm spacing.

#Stitching #MWK #Multi-axial Warp Knit) #Flexure #Interlaminar #Stitching parameter #Regular stacking

참고문헌 (16)

참고문헌 신청

Asp, L.E / 2004 / Effects of Stitch Pattern on the Mechanical Properties of Non-crimp Fabric Composites / Proceeding of the 11th ECCM : 31 ~ 05

Beier, U / 2008 / Evaluation of Preforms Stitched with a Low Melting-temperature Thermoplastic Yarn in Carbon Fibre-reinforced Composites / Composites Part A 39 (5) : 705 ~ 7

Beier, U / 2008 / Mechanical Performance of Carbon Fibre-reinforced Composites Based on Preforms Stitched with Innovative Low-melting Temperature and Matrix Soluble Thermopla

Byun, J.H / 2000 / Comprehensive Composite Material / Elsevier Science Publishers

Ga, B. B / 1997 / Mechanical Characterization of Glass- and Carbon-Fibre-Reinforced Composites made with Non-Crimp Fabrics / Composites Science and Technology 57 (9-10) : 122

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