Structural Engineering and Mechanics

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Numerical and experimental study of large deflection of symmetrically laminated composite plates in compression

  • Chai, Gin Boay (School of Mechanical and Production Engineering, Nanyang Technological University) ;
  • Hoon, Kay Hiang (School of Mechanical and Production Engineering, Nanyang Technological University)
  • Published : 1994.12.25
⟨ Previous Next ⟩

Abstract

The stability behaviour of symmetrically laminated rectangular composite plates with loaded ends clamped and unloaded edges simply-supported, and subjected to uniform in-plane compression is investigated. A numerical and experimental investigation is presented in this contribution. The stacking sequence of the laminated glass/epoxy composite plates is symmetric about the middle surface and consists of 8-ply [0, 90, +45, -45]s lamination. Numerical predictions were obtained through the use of the finite element method. The above plates were modelled with 8-noded isoparametric layered shell elements. The effect of the input parameters such as the degree and forms of prescribed initial imperfection and the incremental step size required for incremental loading, on the convergence of the solution is thoroughly examined. Experimental results are presented for 10 test panels. All test panels were made from glass/epoxy unidirectional prepregs and have aspect ratio of 5.088. The laminate thicknesses were found to vary from 1.054 mm to 1.066 mm. Comparison of experimental data with predicted results show good correlation and give confidence in the finite element model.

Keywords

References

  1. ANSYS (1989), Engineering Analysis System Theoretical Manual, Revision 4.4, adited by Peter C. Kohnke, Swanson Analysis Systems Inc., Pennsylvania, U.S.A.
  2. Banks, W.M. (1977), "A contribution to the geometric nonlinear behaviour of orthotropic plates", Ph.D. Thesis, University of Strathclyde, Glasgow, U.K.
  3. Chai, G. B. (1991), "Large deflection of laminated composite plates," Composite Science and Technology, 42(4), Elsevier Science Publisher, England, 349-360. https://doi.org/10.1016/0266-3538(91)90062-T
  4. Chai, G.B., Banks, W.M. and Rhodes, J. (1991a), "The instability behaviour of laminated panels with elastically rotationally restrained edges," Composite Structures, 19(1), Elsevier Science Publishers. England, 41-65. https://doi.org/10.1016/0263-8223(91)90074-9
  5. Chai, G.B., Banks, W.M. and Rhodes, J. (1991b), "An experimental study on laminated panels in compression", Composite Structures, 19(1), Elsevier Science Publishers. England, 67-87. https://doi.org/10.1016/0263-8223(91)90075-A
  6. Chai, G. B. & Khong, P. W. (1991), "Stability study of coupling responses in laminates," ASTM Journal of Composites Technology & Research, 13(3), Philadelphia, USA, 187-190. https://doi.org/10.1520/CTR10226J
  7. Chia, C.Y. (1972), "Large deflection of rectangular orthotropic plates," Trans ASME Jnl. Engrg. Mech., 1285-1297.
  8. Coan, J.M. (1951), "Large deflection theory for plates with small initial curvature loaded in edge compression," Jnl, Appl. Mech., 18.
  9. Coan, J.M. (1951), "Large deflection theory for plates with small initial curvature loaded in edge compression," Trans ASME, 73, 143-151.
  10. Harris, G.Z. (1973), "Instability of laminated composite plates," AGARD Conf. Proc, No. 112, Paper 14.
  11. Leissa, A. W. (1987). "An overview of composite plate buckling", Proceedings of the 4th International Conference on Composite Structures, 1, edited by I. H. Marshall, Elsever Applied Science, England, U.K., 1-29.
  12. MARC (1991), General Purpose Finite Element Program, E, Demonstration Problems, K4 Version, Marc Analysis Research Corporation, Palo Alto, USA.
  13. Rhodes, J. & Harvey, J.M. (1971), "Plates in uniaxial compression with various support conditions at the unloaded edges," Int. Jnl. Mech. Science, 13, 787-802. https://doi.org/10.1016/0020-7403(71)90047-6
  14. Stein, M. (1983), "Postbuckling of orthotropic composite plates loaded in compression," AIAA Jnl., 11(12), 1729-1735.
  15. Yamaki, N. (1959), "Post-buckling behaviour of rectangular plates with small initial curvature loaded in edge compression," Jnl. Appl. Mech., 26, 407-342.
  16. Yusuff, S. (1952), "Large deflection theory for orthotropic rectangular plates subjected to edge compression," J. Appl. Mech., 19, 446-450.
  17. Walker, A. C. (1969), "The post-buckling behaviour of simply supported square plates," Aero Quart, XX, 203-221.

Cited by

  1. Stability and failure of symmetrically laminated plates vol.4, pp.5, 1996, https://doi.org/10.12989/sem.1996.4.5.485
  2. Stress analysis of a postbuckled laminated composite plate vol.7, pp.4, 1999, https://doi.org/10.12989/sem.1999.7.4.377