Browse > Article

Prediction of Equivalent Elastic Modulus for Flexible Textile Composites according to Waviness Ratio of Fiber Tows  

Suh, Young-W. (한국항공우주연구원 공력구조팀)
Kim, Sung-Joon (한국항공우주연구원 공력구조팀)
Ahn, Seok-Min (한국항공우주연구원 항공기술실)
Publication Information
Aerospace Engineering and Technology / v.9, no.2, 2010 , pp. 73-79 More about this Journal
Abstract
In this study, the equivalent elastic modulus of flexible textile composites was predicted by nonlinear finite element analysis. The analysis was carried out considering the material nonlinearity of fiber tows and the geometrical nonlinearity during large deformation using commercial analysis software, ABAQUS. To account for the geometrical nonlinearity due to the large shear deformation of fiber tows, a user defined material algorithm was developed and inserted in ABAQUS. In results, nonlinear stress-strain curve for the flexible textile composites under uni-axial tension was predicted from which effective elastic modulus was obtained and compared to the test result. The effective elastic moduli were calculated for the various finite element models with different waviness ratio of fiber tow.
Keywords
flexible textile composites; material nonlinearity; geometrical nonlinearity; large shear deformation; equivalent elastic modulus;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Cadogan, D., J. Stein and M. Grahne, "Inflatable Composite Habitat Structures for Lunar and Mars Exploration", Proceedings of 49th International Astronautical Congress, Melbourne, Australia, Sept 29-Oct 2, 1998.
2 Sandy, C. R., "Next Generation Space Telescope Inflatable Sunshield Development", 2000 IEEE Aerospace Conference, March 2000.
3 서영욱, 우경식, "유연수지를 기지재료로 하는 복합재료의 비선형거동 예측", 한국항공우주학회지, 제34권, 제10호, 2006, pp.24-20
4 ABAQUS Analysis User's Manual.
5 Boisse, P., B. Zouari and J. L. Daniel, "Importance of In-plane Shear Rigidity in Finite Element Analyses of Woven Fabric Composite Preforming", Composites. Part A, Vol. 37, pp. 2201-2212, 2006.   DOI   ScienceOn
6 Huang, Z. M., Ramakrishna, S., Dionner, H. P. and Tay, A. A. O., "Characterization of A Knitted Fabric Reinforced Elastomer Composite." Journal of Reinforced Plastics and Composites, Vol. 18, No. 2. 1999, pp. 118-137
7 Ronard F. Gibson, Principles of Composite Material Mechanics, McGraw-Hill, Inc. 1994.
8 W. Keith Belvin, "Opportunities for Gossamer Structures in NASA's Exploration Program", 48th SDM Conference, 8th AIAA Gossamer Spacecraft Forum, 23-24, April, 2007.