DOI QR코드

DOI QR Code

Vibraion Damping Analysis in $90^0$ Laminated Beam Considering the Effect of Interlaminar Stess

층간응력의 효과를 고려한 단일방향 900복합재 적층보의 진동감쇠 해석

Im, Jong-Hwi
임종휘

  • Published : 2000.05.01

Abstract

This paper is concerned with the development of a general model for predicting material damping in laminates based on the strain energy method. In this model, the effect of interlaminar stress on damping is taken into accounts along with those of in-plane extension/compression and in-plane shear. The model was verified by carrying out the damping measurements on $90^0$ unidirectional composite beams varying length and thickness. The analytical predictions were favorably compared with the experimental data. The transverse shear($$\sigma$_{yz}$) appears to have a considerable influence on the damping behaviors in $90^0$ unidirectional polymer composites. However, the other interlaminar stresses($$\sigma$_{xz}$, $$\sigma$_z$) were shown to have little impact on vibration damping in $90^0$ laminated composite beam.

Keywords

Vibration;Damping;Loss Factors;Laminated Composites;Flexural Bending Moment;Interlaminar Stresses

References

  1. Henneke, E. G., II and Jones, T. S., 1979, 'Detection of Damage in Composite Materials by Vibrothemography,' Nondestructive Evaluation and Flaw Criticality of Composite Materials, ASTM STP 696, R. B. Pipes, Ed., American Society for Testing and Materials, pp. 83-95
  2. Yim, J.H., 1998,'Comparison of Prediction Methods for Damping of a Symmetric Balanced Laminated Composite,' KSME International J., Vol.12, No.4, pp. 536-543
  3. Crane, R.M. and Gillespie, J.W. Jr., 1991, 'Characterization of the Vibration Damping Loss Factor of Glass and Graphite Fiber Composites,' Composites Science and Technology, Vol. 40 pp. 355-375 https://doi.org/10.1016/0266-3538(91)90030-S
  4. Hashin, Z., 1970, 'Complex Moduli of Viscoelastic Composites: II. Fiber Reinforced Materials,' Int. J. Solids and Struc., Vol. 6 pp. 797-807 https://doi.org/10.1016/0020-7683(70)90018-1
  5. Wren, G.G. and Kinra, V.K., 1990, 'An Experimental Study of the Complex Dynamic Modulus,' Dynamic Elastic Modulus Measurements in Materials, ASTM STP 1045, pp. 58-79
  6. Hwang, S. J. and Gibson, R .F.,1991,'Contribution of Interlaminar stress on Damping of Laminated Composites,' Comp. Struc., 41, pp. 379-393
  7. Alam, N. and Asnani, N.T., 1986,'Vibration and Damping Analysis of Fibre Reinforced Composite Material Plates,' Journal of Composite Materials, Vol. 20, pp. 2-18 https://doi.org/10.1177/002199838602000101
  8. Yim, J.H., Burmeister, J.S., Kaminski, R.L. and Gillespie, J.W. Jr., Experimental Characterization of Material Damping in Laminated Polymer Matrix Composites, Center for Composite Materials Report 1988-39, University of Delaware, Newark, Delaware
  9. Ni, R. G. and Adams, R. D., 1984, 'The Damping and Dynamic Moduli of Symmetric Laminated Composite Beams-Theoretical and Experimental Results,' J. Comp. Mails, Vol. 18, p. 104 https://doi.org/10.1177/002199838401800202
  10. 임 종휘, Jang, B.Z., Shuling, J.C., and Gillespie, J.W. Jr.,1997, '0-degree 단일방향 적층된 복합재료의 탬핑에 대한 횡전단 응력의 영향,' 한국복합재료학회지, 제10권, 제4호, pp. 26-35
  11. Yim, J.H. and Jang, B.Z.,1999,'An Analytical Method for Prediction of the Damping in Symmetric Balanced laminated Composites,' Polymer Composites, Vol. 20, No. 2, pp. 192-199 https://doi.org/10.1002/pc.10346
  12. Willway,T.A. and White, R.G.,1989,'The Effects of Matrix Complex Moduli on the Dynamic Properties of CFRP Laminate,' Composites Science and Technology, Vol. 36, pp.77-94 https://doi.org/10.1016/0266-3538(89)90017-1
  13. Adams, R.D., 1987, Damping Properties Analysis of Composites, Engineering Materials Handbook, Composites, Vol.1, pp. 206-217, ASM
  14. Bicos, A.S. and Springer, G.S., 1989, 'Analysis of Free Damped Vibration of Laminated Composite Plates and Shells,' International Journal of Solids and Structures, Vol. 25, pp. 129-149, 1989 https://doi.org/10.1016/0020-7683(89)90003-6
  15. Koo, K.N. and Lee, I.,1993, 'Vibration and Damping Analysis of Composite Laminates Using Shear Deformable Finite Element,' AIAA J.,Vol.31, No. 4, April, pp.728-735
  16. Saravanos, D.A., 1994,'Integrated Damping Mechanics for Thick Composite Laminates and Plates,' Journal of Applied Mechanics, Vol. 61, pp.375-383