Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Cure simulation and Consolidation for a Thick Glass/Epoxy Laminate

유리섬유/에폭시 후판 복합재료의 경화공정 및 압밀해석

  • O, Je-Hun (Dept. of Mechanical Engineering, Korea Advanced Institute of Science and Technology) ;
  • Lee, Dae-Gil
  • Published : 2000.11.01
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Abstract

During the curing process of thick glass/epoxy laminates, a substantial amount of temperature lag and overshoot at the center of the laminates is usually experienced due to the large thickness and low thermal conductivity of the glass/epoxy composites. Also, it takes a longer time for full and uniform consolidation. In this work, temperature, degree of cure and consolidation of a 20 mm thick unidirectional glass/epoxy laminate were investigated using an experiment and a 3-dimentional numerical analysis. From the experimental and numerical results, it was found that the experimentally obtained temperature profile agreed well with the numerical one, and the cure cycle recommended by the prepreg manufacturer should be modified to prevent a temperature overshoot and to obtain full consolidation.

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References

  1. Mallick, P. K., 1988, Fiber Reinforced Composites, Marcel Dekker, Inc., New York, Chapter 1
  2. Bogetti, T. A. and Gillespie, J. W. Jr., 1991, 'Two-Dimensional Cure Simulation of Thick Thermosetting Composites,' Journal of Composite Materials, Vol. 25, pp. 239-273
  3. Ciriscioli, P. R., Wang, Q. and Springer, G. S., 1992, 'Autoclave Curing - Comparison of Model and Test Results,' Journal of Composite Materials, Vol. 26, pp. 90-102 https://doi.org/10.1177/002199839202600106
  4. Twardowski, T. E., Lin, S. E. and Geil, P. H., 1993, 'Curing in Thick Composite Laminates: Experiment and Simulation,' Journal of Composite Materials, Vol. 27, pp. 216-250 https://doi.org/10.1177/002199839302700301
  5. Hojjati, M. and Hoa, S. V., 1995, 'Model Laws for Curing of Thermosetting Composite,' Journal of Composite Materials, Vol. 29, pp. 1741-1761 https://doi.org/10.1177/002199839502901305
  6. Michaud, D. J., Beris, A. N. and Dhurjati, P. S., 1998, 'Curing Behavior of Thick-Sectioned RTM Composites,' Journal of Composite Materials, Vol. 32, pp. 1273-1296 https://doi.org/10.1177/002199839803201402
  7. White, S. R. and Kim, Y. K., 1996, 'Staged Curing of Composite Materis,' Composites Part A, Vol. 27, pp. 219-227 https://doi.org/10.1016/1359-835X(95)00023-U
  8. Yi, S, and Hilton, H. H., 1998, 'Effects of Thermo-Mechanical Properties of Composites on Viscosity, Temperature and Degree of Cure in Thick Thermosetting Composite Laminates during Curing Process,' Journal of Composite Materials, Vol. 32, pp. 600-622 https://doi.org/10.1177/002199839803200701
  9. Kim, J. S. and Lee, D. G., 1997, 'Development of an Autoclave Cure Cycle with Cooling and Reheating Steps for Thick Thermoset Composite Laminates,' Journal of Composite Materials, Vol. 31, pp. 2264-2282 https://doi.org/10.1177/002199839703102203
  10. Young, W. B, 1995, 'Compacting Pressure and Cure Cycle for Processing of Thick Composite Laminates,' Composite Science and Technology, Vol. 54, pp. 299-306 https://doi.org/10.1016/0266-3538(95)00067-4
  11. Blest, D. C., Duffy, B. R., McKee, S, and Zulkifle, A. K., 1999, 'Curing Simulation of Thermoset Composites,' Composites Part A, Vol. 30, pp. 1289-1309 https://doi.org/10.1016/S1359-835X(99)00032-9
  12. Joshi, S. C., Liu, X. L. and Lam, Y. C., 1999, 'a Numerical Approach to the Modeling of Polymer Curing in Fiber-Reinforced Composites,' Composites Science and Technology, Vol. 59, pp. 1003-1013 https://doi.org/10.1016/S0266-3538(98)00138-9
  13. Martinez, G. M, 1991, 'Fast Cure for Thick Laminated Organic Matrix Composites,' Chemical Engineering Science, Vol. 46, pp. 439-450 https://doi.org/10.1016/0009-2509(91)80005-J
  14. Oh, J. H., Kim, J. K., Lee, D. G. and Jeong, K. S., 1999, 'Interlaminar Shear Behavior of Thick Carbon/Epoxy Composite Materials,' Journal of Composite Materials, Vol. 33, pp. 2080-2115 https://doi.org/10.1177/002199839903302202
  15. Mills, A. F., 1992, Heat Transfer, Richard D. Irwin, Inc., Chap. 3
  16. Lee, W. I., Loos, A. C. and Springer, G. S., 1982, 'Heat of Reaction, Degree of Cure and Viscosity of Hercules 3501-6 Resin,' Journal of Composite Materials, Vol. 16, pp. 510-520 https://doi.org/10.1177/002199838201600605
  17. Dusi, M. R., Lee, W. I., Ciriscioli, P. R. and Springer, G. S., 1987, 'Cure Kinetics and Viscosity of Fiberite 976 Resin,' Journal of Composite Materials, Vol. 21, pp. 243-261 https://doi.org/10.1177/002199838702100304
  18. Chiao, L. and Lyon, R. E., 1990, 'A Fundamental Approach to Resin Cure Kinetics,' Journal of Composite Materials, Vol. 24, pp. 739-752 https://doi.org/10.1177/002199839002400704
  19. Springer, G. S. and Tsai, S. W., 1967, 'Thermal Conductivities of Unidirectional Materials,' Journal of Composite Materials, Vol. 1, pp. 166-173 https://doi.org/10.1177/002199836700100206
  20. Gutowski, T. G., Cai, Z., Bauer, S., Boucher, D., Kingery, J. and Wineman, S., 1987, 'Consolidation Experiments for Laminate Composites,' Journal of Composite Materials, Vol. 21, pp. 650-669 https://doi.org/10.1177/002199838702100705
  21. Gutowski, T. G., Morigaki, T. and Cai, Z., 1987, 'The Consolidation of Laminate Composites,' Journal of Composite Materials, Vol. 21, pp. 172-188 https://doi.org/10.1177/002199838702100207
  22. Kim, J. S. and Lee, D. G., 1993, 'On-line Cure Monitoring and Viscosity Measurement of Carbon Fiber Epoxy Composite Materials,' Journal of Materials Processing Technology, Vol. 37, pp. 405-416 https://doi.org/10.1016/0924-0136(93)90105-F
  23. Young, W. B, 1996, 'Consolidation and Cure Simulations for Laminated Composites,' Polymer Composites, Vol. 17, pp. 142-148 https://doi.org/10.1002/pc.10599