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A Study on the Impact Fracture Behavior of Glass Fiber Polyethylene Composites

GF/PE 복합재료의 충격파괴거동에 관한 연구

  • 엄윤성 (부경대학교) ;
  • 최영근 (부경대학교 대학원) ;
  • 양병춘 (부경대학교 대학원) ;
  • 김형진 (경상대학교 해양산업연구소) ;
  • 고성위 (부경대학교)
  • Published : 2003.08.01

Abstract

Many of researches regarding mechanical properties of composite materials are associated with humid environment and temperature. Especially the temperature is a very important factor influencing the design of thermoplastic composites. However, the effect of temperature on impact behavior of reinforced composites have not yet been fully explored. An approach which predicts critical fracture toughness G$_{IC}$ was performed by the impact test in this work. The main goal of this work is to study the effect of temperature and span of specimen supports on the results of Charpy impact test for GF/PE composite. The critical fracture energy and failure mechanism of GF/PE composites were investigated in the temperature range of $60^{\circ}C;to;-50^{\circ}C$ by the Charpy impact test. The critical fracture energy showed the maximum at the ambient temperature, and it tended to decrease as the temperature increased or decreased from the ambient temperature. The major failure mechanisms are the fiber matrix debonding, the fiber pull-out and/or delamination and the matrix deformation.n.

Keywords

impact test;fracture behavior;temperature effect;GF/PE composites;fracture mechanisms;critical fracture energy;SEM

References

  1. Pritchard, G. and Yang,(1994) : Microscopy of Damage in Particulate-Filled Glass Epoxy Laminate, J. Mat. Sci., 29, pp. 5047-5053. https://doi.org/10.1007/BF01151095
  2. Matheswaran, M. and Kishore, K.(1995) : Static and Impact Behaviour of Thermoplastic Modified Glass Fabric/epoxy Composites, J. Mat. Sci. Letters, 14, pp.951-954. https://doi.org/10.1007/BF02427474
  3. Karmaker, A. C.(1997) : Effect of Water Absorption on Dimensional Stability and Impact Energy of Jute Fibre Reinforced Polypropylene, J. Mat. Sci. Letters, 16, pp. 462-464. https://doi.org/10.1023/A:1018508209022
  4. Baxter, W. J.(1998) : The Correct Interpretation of the Tensile Strength of Short Fibre-Reinforced Composites, J. Mat. Sci. Letters, 33, pp. 5703-5706. https://doi.org/10.1023/A:1004401306975
  5. Karmaker, A. and Prasad, A.(2000) : Effect of Design Parameters on the flexural Properties of Fiber-Reinforced Composites, J. Mat. Sci. Letters, 19, pp. 663-665. https://doi.org/10.1023/A:1006754426314
  6. Korinek, Z. and Steidl, J.(2000) : Impact Properties of Short Fiber Reinforced Polyamide after Different Treatments, J. Mat. Sci. Letters, 19, pp. 729-731. https://doi.org/10.1023/A:1006742605629
  7. Yue, C. Y. and Cheung, W. L.(1993) : Some Observations on The Role of Transcrystalline Interohase on the Interfacial Strength of Thermoplastic Composites, J. Mat. Sci. Letters, 12, pp. 1092-1094. https://doi.org/10.1007/BF00420531
  8. Schneider, M., Pith, T. and Lambla, M.(1997) : Thoughening of Polystyrene by Natural Rubber-Based Composite Particles, J. Mat. Sci., 32, pp. 6331-6342. https://doi.org/10.1023/A:1018661800111
  9. Schultz, J. M. and Friedrich, K.(1984) : Effect of Temperature and Strain Rate on the Strength of a PET/glass Fibre Composite, J. Mat. Sci., 19, pp. 2246-2258. https://doi.org/10.1007/BF01058102
  10. Sjogren, B. A. and Berglund, L. A. (1997) : Failure Mechani는 in Polypropylene with Glass Beads, Polymer Comp., 18(1), pp. 1-8. https://doi.org/10.1002/pc.10255
  11. Sahnoune, F., Lopez-cuesta, J. M. and Crespy, A.(1999) : Effect of Elastomer Interfa cial Agents on Tensile and Impact Proper pies of $CaCO_3$ Filled HDPE, J. Mat. Sci., 34, pp. 534-544. https://doi.org/10.1023/A:1004542612024
  12. Park. R. and Jang, J.(1999) : Performance Improvement of Carbon fiber / Polyethylen Fiber Hybrid Composites, J. Mat. Sci., 34, pp. 2903-2910. https://doi.org/10.1023/A:1004647721380
  13. 엄윤성.박기호.고성위.김형진(1999) : GF/PP 복합재료의 충격파괴거동에 관한 연구, 한국어업기술 학회지, 35(4), pp.421-427.
  14. Tomlinson, W. J. and Holland, J. R.(1994) : Pultrusion and Properties of Unidirectional Glass Fibre-Polypropylene Matrix composites, J. Mat. Sci. Letters, 13, pp. 675-677. https://doi.org/10.1007/BF00271231
  15. Santulli, C. and Cantwell, W. J.(2001) : Impact Damage Characterization on Jute Reinforced Composites, J. Mat. Sci. Letters, 20, pp. 477-479. https://doi.org/10.1023/A:1010945119139