Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on Elastic Modulus Predictions and Dynamic Characteristics Analysis of Composite Structures using CFRP (HPW193/RS1222)

CFRP (HPW193/RS1222)소재 복합재의 탄성 강성 예측 및 동적 특성 분석에 관한 연구

  • Received : 2016.07.25
  • Accepted : 2016.08.24
  • Published : 2016.10.01
Download PDF
⟨ Previous Next ⟩

Abstract

Recently, the use of composite materials in the defense system has grown dramatically. The strength/weight and stiffness/weight ratios of composite structures are normally higher than of metals. Woven composites, especially, are increasingly considered for a variety of applications, because they offer good workability for complicated structures. HPW193/RS1222 is one of the most famous woven composites and has been used in many types of Korean military equipment, such as antenna pedestals and radar systems. In this study, we predicted the elastic modulus of HPW193/RS1222 using the principles of unidirectional composite stiffness predictions, such as ROM (Rule of Mixture), HSR (Hart Smith 10% Rule), CLA (Classical Laminate Analysis) and LAP (Laminate Analysis Program). We compared the dynamic characteristics with the experimental predictions and finite-element analysis (FEA). From our results we concluded that transversely isotropic materials are similar to isotropic materials when the shape of the composite structure is complicated.

Keywords

References

  1. Holloway, C. L., Sarto, M. S., and Johansson, M., "Analyzing Carbon-Fiber Composite Materials with Equivalent-Layer Models," IEEE Transactions on Electromagnetic Compatibility, Vol. 47, No. 4, pp. 833-844, 2005. https://doi.org/10.1109/TEMC.2005.854101
  2. Vozkova, P., "Elastic Modulus FEM Modeling of the Layered Woven Composite Material," InTech, pp. 651-676, 2008.
  3. Richardson, D., "The Fundamental Principles of Composite Material Stiffness Predictions," https://www.swcompositesgateway.co.uk/Property-Prediction.pdf (Accessed 10 June 2015)
  4. Chou, T.-W. and Ishikawa, T., "One-Dimensional Micromechanical Analysis of Woven Fabric Composites," AIAA Journal, Vol. 21, No. 12, pp. 1714-1721, 1983.. https://doi.org/10.2514/3.8314
  5. Okamoto, S., Yamamoto, M., Hosokawa, K., Nakano, M., and Hanaoka, K., "Mechanical Properties of CFRP Pressure Vessels and Identification of Equivalent Elastic Moduli of CFRPs," High Performance Structures and Materials IV, Vol. 97, pp. 471-480, 2008.
  6. Askeland, D. R., Fulay, P. P., and Wright, W. J., "The Science and Engineering of Materials," CL Engineering, 6th Ed., pp. 90-120, 2010.
  7. Hexcel, "Reinforcements for Composites," http://www.hexcel.com/Resources/DataSheets/Brochure-Data-Sheets/HexForce_Technical_Fabrics_Hand book.pdf (Accessed 21 March 2016)
  8. ASTM D 792, "Test Method for Density and Specific Gravity (Relative Density) of Plastics by Displacement," 2004.
  9. ASTM D 3039, "Test Method for Tensile Properties of Polymer Matrix Composite Materials," 2008.
  10. ASTM D 3518, "Test Method for In-Plnae Shear Response of Polymer Matrix Composite Materials by Tensile Test of ${\pm}45^{\circ}$ Laminate," 2004.