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

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지
DOI QR코드

DOI QR Code

Flow Analysis with Ratio of Expansional /Contractional Viscosity during Compression Molding of Continuous Fiber-Reinforced Polymeric Composites

연속섬유강화 플라스틱 복합재의 압축성형에 있어서 확대/축소 점도비를 고려한 유동해석

  • Published : 2000.03.01
Download PDF
⟨ Previous Next ⟩

Abstract

To obtain an excellent product and decide on optimum molding conditions, it is important to establish the relationship between molding conditions and viscosity. The composites is treated as a pseudoplastic fluid, and the expansional/contractional viscosity of the fiber-reinforced polymeric composites is measured using the parallel plastometer, and the model for flow state has been simulated with the viscosity. The effects of expansional slip parameter $\alpha_{e}$, and expansional/contractional viscosity ratio ${\mu}_{\gamma}$, on the mold filling parameters are also discussed.

Keywords

References

  1. Maschmeyer, R. O., and Hill, C. T., 1977, 'Rheology of Concentrated Suspensions of Fibers in Tube Flow. II .An Exploratory Study,' Trans. of the Society of Rheology, 21-2, pp. 183-194 https://doi.org/10.1122/1.549453
  2. Lech Czarnecki and White, J. L., 1980, 'Shear Flow Rheological Properties, Fiber Damage, and Mastication Characteristic of Aramid-, Glass-, and Cellulose-Fiber-Reinforced Polystrene Melts,' J. of Applied Polymer Science, Vol. 25, pp. 1217-1244 https://doi.org/10.1002/app.1980.070250623
  3. Crowson, R. J., and Folkes, M. J., 1980, 'Rheology of Short Fiber-Reinforced Thermoplastics and its Application to Injection Molding,' Polymer Engineering and Science, Vol. 20, No. 14, pp. 934-940 https://doi.org/10.1002/pen.760201404
  4. Dienes, G. J., and Klemm, H. F, 1946, 'Theory and Application of the Parallel Plate Plastometer,' J. of Applied Physics, Vol. 17, pp. 458-471 https://doi.org/10.1063/1.1707739
  5. 北條英典, 金二坤, 玉川規一, 1984, '長纖維强化プラスチック複合板の壓出加工 (第l報, プラスチックと强化材の分離に關する理論的考察),' 第35回日本塑性加工聯合講演會論文集, No. 331, pp. 433-436
  6. 北條英典, 金二坤, 玉川規一, 1984, '長纖維强化プラスチック複合板の壓出加工 (第2報, プラスチックと强化材の分離に關する實驗),' 第35回日本塑性加工聯合講演會論文集, No. 332, pp. 437-440
  7. Whiting, R., and Jacobsen, P. H., 1979, 'The Evaluation of Non-Newtonian Viscosity Using a Modified Parallel-Plate Plastometer,' J. of Material Science, Vol. 14, pp. 307-311 https://doi.org/10.1007/BF00589820
  8. 이희균, 조선형, 김이곤, 1997, '장섬유강화 고분자 복합판의 압축성형에 있어서 점성계수 측 정,' 한국복합재료학회지, 제10권, 제2호, pp. 79-86
  9. 조선형, 임영호, 김이곤, 1996, '섬유강화 고분자 복합재료의 압축성형에 있어서 이방성을 고 려한 유동해석,' 한국복합재료학회지, 제9권, 제1호, pp. 1-9
  10. 윤두현, 김형철, 조선형, 김이곤, 1997, '장섬유강화 고분자 복합재료의 압축성형에 있어서 금형변의 미끄럼 지배상수에 관한 연구,' 한국복합재료학회지, 제10권, 제4호, pp. 50-58