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 Tensile Behavior of Transparent Polycarbonate (PC) Plate in the High Temperature

투명 폴리카보네이트 판재의 고온 인장 거동에 관한 연구

  • Received : 2013.11.22
  • Accepted : 2013.12.10
  • Published : 2014.01.01
Download PDF
⟨ Previous Next ⟩

Abstract

Recently, several researchers made their endeavor to manufacture the photobioreactor(PBR) with characteristic shapes form vacuum and blow forming process. Hence, behaviors of the transparent polycarbonate(PC) plate in the high temperature region should be examined to obtain the desired PBR case via vacuum and blow forming processes. The aim of this paper is to investigate tensile behavior of PC plate in the high temperature. Various tensile tests were performed using high temperature tensile testing machine. The influence of tensile speed, thickness and ambient temperature on tensile behavior in the high temperature was examined. The flow stress and tensile strength augmented when the tensile speed increased. In order to obtain proper flow curves with strain rate effects for different temperature of specimen, G'sell-Jonas model was adopted. The material constants of the G'sell-Jonas model were estimated. The flow curves of the PC plate considering the tensile speed, specimen thickness and temperature were obtained.

Keywords

References

  1. Mark, J. E., "Polymer Data Handbook," Oxford University press, 1999.
  2. Ahn, D. G., Cho, C. G., Jeong, S. H., and Lee, D. G., "Design of Photobioreactor for Mass Production of Microalgae," J. Korean Soc. Precis. Eng., Vol. 28, No. 2, pp. 140-153, 2011.
  3. Kim, Y. H., Lee, J. M. and Hong, S. S., "Optimal Design of Superplastic Forming Process," J. Mater. Proc. Tech. Vol. 112, No. 2-3, pp. 166-173, 2001. https://doi.org/10.1016/S0924-0136(00)00880-3
  4. Kim, J. T., Ahn, D. G., Park, J. R., Park, J. W., and Jeong, S. H., "Recent Trends of the Development of Photobioreactors to cultivate Microalgae," J. Korean Soc. Precis. Eng., Vol. 28, No. 2, pp. 125-132. 2011.
  5. Johnson, G. R., and Cook, W. H., "Fracture Characteristics of Three Metals Subjected to Various Strains, Strain Rates, Temperatures and Pressures," Engineering Fracture Mechanics, Vol. 21, No. 1, pp. 31-48, 1985. https://doi.org/10.1016/0013-7944(85)90052-9
  6. Gimenez, E., Lagaron, J. M., Cabedo, L., Gavara, R., and Saura, J. J., "Study of the Thermoformability of Ethylene-Vinyl Alcohol Copolymer Based Barrier Blends of Interest in Food Packaging Applications," Journal of Applied Polymer Science, Vol. 91, No. 6, pp. 3851-3855, 2004. https://doi.org/10.1002/app.13584
  7. Gimenez, E., Lagaron, J. M., Maspoch, M. L., Cabedo, L., and Saura, J. J., "Uniaxial Tensile Behavior and Thermoforming Characteristics of High Barrier EVOH-Based Blends of Interest in Food Packaging," Polym. Eng. Sci., Vol. 44, No. 3, pp. 598-608, 2004. https://doi.org/10.1002/pen.20054
  8. Melick, H. G. H., Govaert, L. E., and Meijer, H. E. H., "On the origin of strain hardening in Glassy Polymers," Polymer, Vol. 44, No. 8, pp. 2493-2502, 2003. https://doi.org/10.1016/S0032-3861(03)00112-5
  9. Schossig, M., Bierogel, C., Grellmann, W., and Mecklenburg, T., "Mechanical Behavior of Glass Fiber Reinforced Thermoplastic Materials Under High Strain Rates," Polymer Testing, Vol. 27, No. 7, pp. 893-900, 2008. https://doi.org/10.1016/j.polymertesting.2008.07.006
  10. Rezgui, F., G'sell, C., Dahoun, A., Hiver, J. M., and Sadoun, T., "Plastic Deformation of Low-Density Polyethylene Reinforced With Biodegradable Polylactide, Part 1: Microstructural Analysis and Tensile Behavior at Constant True Strain-Rate," Polym. Eng. Sci., Vol. 51, No. 1, pp. 117-125, 2011. https://doi.org/10.1002/pen.21797
  11. Rezgui, F., G'sell, C., Dahoun, A., Hiver, J. M., and Sadoun, T., "Plastic Deformation of Low-Density Polyethylene Reinforced With Biodegradable Polylactide, Part 2: Creep Characterization and Modeling," Polym. Eng. Sci., Vol. 51, No.1, pp. 126-132, 2011. https://doi.org/10.1002/pen.21796
  12. ASTM No. D638-10 "Standard Test Method for Tensile Properties of Plastics," 2010.
  13. G' sell, C., Aly-helal, N. A., and Jonas, J. J., "Effect of Stress Triaxiality on Neck Propagation During the Tensile Stretching of Solid Polymers." J. Mater. Sci., Vol. 18, No. 6, pp. 1731-1742, 1983. https://doi.org/10.1007/BF00542069
  14. Yoo, Y. G. and Lee, H. S., "Effects of Processing Conditions on Thickness Distribution for a Laminated Film during Vacuum-Assisted Thermoforming," Trans. Mater. Process., Vol. 20, No. 3, pp. 250-256, 2011. https://doi.org/10.5228/KSTP.2011.20.3.250
  15. G'sell, C., Jonas, J. J., and Mater, J., "Determination of the Plastic Behavior of Solid Polymers at Constant True Strain Rate.," J. Mater. Sci., Vol. 14, No. 3, pp. 583-591, 1979.
  16. Kim, G. Y., Lee, K. G., and Kang, S. S., "Prediction of the Film Thickness Distribution and Pattern Change during Film Insert Thermoforming," Polym. Eng. Sci., Vol. 49, No. 11, pp. 2195-2203, 2009. https://doi.org/10.1002/pen.21467

Cited by

  1. Fabrication of Nano-Size Specimens for Tensile Test Employing Nano-Indentation Device vol.32, pp.10, 2015, https://doi.org/10.7736/KSPE.2015.32.10.911
  2. Methodology of Three-Dimensional Thermoforming Analysis to Simulate Forming Process of Medium and Large-Sized Plastic Parts vol.32, pp.11, 2015, https://doi.org/10.7736/KSPE.2015.32.11.953