Experimental Testing of Curved Aluminum Honeycomb/CFRP Sandwich Panels
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This paper presents the fabrication and 3-point flexion testing of carbon fiber reinforced polymer (CFRP) composite face/aluminum honeycomb core sandwich panels. Specimen sandwich panels were fabricated with three honeycomb types (3.18 mm, 4.76 mm, and 6.35 mm cell size) and three panel radii (flat, r = 1.6 m, r = 1.3 m). The curved sandwiches were fabricated normally with the core in the W-direction. The tensile mechanical properties of the CFRP 2 × 2 twill fabric face laminate were evaluated (modulus, strength, Poisson’s ratio). The measured values are comparable to other CFRP fabric laminates. The flat sandwich 3-point flexion test core shear strength results were 11-30% lower than the manufacturer published data; the test set-up used may be the cause. With a limited sample size, the 1.3 meter panel curvature appeared to cause a 0.8-3.8% reduction in ultimate core shear strength compared to a flat panel.
Abstract
This paper presents the fabrication and 3-point flexion testing of carbon fiber reinforced polymer (CFRP) composite face/aluminum honeycomb core sandwich panels. Specimen sandwich panels were fabricated with three honeycomb types (3.18 mm, 4.76 mm, and 6.35 mm cell size) and three panel radii (flat, r = 1.6 m, r = 1.3 m). The curved sandwiches were fabricated normally with the core in the W-direction. The tensile mechanical properties of the CFRP 2 × 2 twill fabric face laminate were evaluated (modulus, strength, Poisson’s ratio). The measured values are comparable to other CFRP fabric laminates. The flat sandwich 3-point flexion test core shear strength results were 11-30% lower than the manufacturer published data; the test set-up used may be the cause. With a limited sample size, the 1.3 meter panel curvature appeared to cause a 0.8-3.8% reduction in ultimate core shear strength compared to a flat panel.
참고문헌 (19)
- Wahl, L., "Shear Stresses in Honeycomb Sandwich Plates: Analytical Solution, Finite Element Method and Experimental Verification", Journal of Sandwich Structures and Materials, 14(4), pp.449~468 (2012)
- "PAMG-XR1 5052 Aluminum Honeycomb" (2012), Plascore Inc.
- "PN2 Aerospace Grade Aramid Fiber Honeycomb" (2012), Plascore Inc.
- Paika, J. K., "The Strength Characteristics of Aluminum Honeycomb Sandwich Panels", Thin-Walled Structures, 35(3), pp.205~231 (1999)
- Jen, Y. M., "Evaluating Bending Fatigue Strength of Aluminum Honeycomb Sandwich Beams Using Local Parameters", International Journal of Fatigue, 30(6), pp.1103~1114 (2008)
- Campbell, F. C., "Structural Composite Materials" (2010), ASM International
- "PAMG-XR1 5056 Aluminum Honeycomb" (2012), Plascore Inc.
- "HexWeb Honeycomb Attributes and Properties" (1999), Hexcel Composite Materials
- Lopes-Tavares, S.S., "Optimisation of Low Pressure Processing for Honeycomb Sandwich Structures", 박사, pp.2009
- Kratz, J., "Processing Composite Sandwich Structures using Outof- Autoclave Technology", 박사, pp.2009
- "ASTM D3039 Standard Test Method for Tensile Properties of Polymer Matrix Composites Materials", ASTM International, ~ (2000)
- "ASTM C393 Standard Test Method for Flexural Properties of Sandwich Constructions", ASTM International, ~ (2000)
- Hübner, M., "Simulation of the Drapability of Textile Semi-Finished Products with Gradient-Drapability Characteristics by Varying the Fabric Weave", Fibres & Textiles in Eastern Europe, 20(5), pp.88~93 (2012)
- Rozant, O., "Drapability of Dry Textile Fabrics for Stampable Thermoplastic Preforms", Composites: Part A, 31(11), pp.1167~1177 (2000)
- Abot, J. L., "Inplane Mechanical, Thermal and Viscoelastic Properties of a Satin Fabric Carbon", Epoxy Composite, 2004, pp.64(2), 263~268
- "Tencate TC250 Resin System", TenCate Advanced Composites, ~ (2012)
- ABasis and B-Basis Design Allowables for Epoxy-Based Prepreg TORAY T700SC-12K-50C, "#2510 Plain Weave Fabric", Tomblin, J., 2002
- Properties of Two Carbon Composite Materials Using LTM25 Epoxy Resin, "Cruz, J. R.", NASA Langley Research Center, ~ (1996)