3D Textile 프리폼 제조 및 복합재료 기계적 특성 연구 = Manufacture of 3D Textile Preform and Study on Mechanical Properties of Composites

다국어 초록 (Multilingual Abstract)

The aircraft composites wing parts are usually integrated with adhesive or fastener. These laminated composites have weak interlaminar strength, which can lead to delamination. In order to compensate the disadvantages of laminated composites, it is possible to improve the strength, durability, shock and fatigue resistance by reinforcing the fiber in the thickness direction. In addition, using a single structure near-net-shape saves the manufacturing time and the number of fasteners, thus can reduce the overall cost of the composite parts. In this study, compression test, tensile test and open-hole tensile test are carried out for three structural architecture of 3D (three-dimensional) textile preforms: orthogonal(ORT), layer-to-layer(LTL) and through-the-thickness(TTT) patterns. Among these, the orthogonal textile composite shows the highest Young’s modulus and strength in tensile and compression. The notch sensitivity of the orthogonal textile composite was the smallest as compared with UD (unidirectional) and 2D (two-dimensional) fabric laminates.

참고문헌 (Reference)

1 김성준, "복합재 구조물의 모서리 곡면 부위에 대한 두께방향 응력 연구" 한국항공우주학회 41 (41): 665-672, 2013

2 Nguyen, V. P., "Two-and Three-dimensional Isogeometric Cohesive Elements for Composite Delamination Analysis" 60 : 193-212, 2014

3 Arief Yudhanto, "The Effects of Stitch Orientation on the Tensile and Open Hole Tension Properties of Carbon/epoxy Plain Weave Laminates" 35 : 563-571, 2012

4 Dai, S., "Open Hole Quasi-static and Fatigue Characterization of 3D Woven Composites" 131 : 765-774, 2015

5 Visrolia, A., "Multiscale Damage Modelling of 3D Weave Compsite by Asymptotic Homogenization" 95 : 105-113, 2013

6 Byun, J. H., "Impact Properties of Laminated Composites with Stitching with Stitching Fibers" 76 : 21-27, 2006

7 Byun, J.H., "Fabrication of 3D Textile Preforms by Multi-layer Weaving" 212-217, 1997

8 O’Higgins, R. M., "Comparison of Open Hole Tension Characteristics of High Strength Glass and Carbon Fibre-reinforced Composite Materials" 68 : 2770-2778, 2008

9 A. International, "ASTM D5766 Standard Test Method for Open-hole Tensile Strength of Polymer Matrix Composite Laminates"

10 Mouritz, A. P., "A Mechanistic Interpretation of the Comparative in-plane Mechanical Properties of 3D Woven, Stitched and Pinned Composites" 41 : 709-728, 2010