Journal of Applied Science and Engineering

Published by Tamkang University Press


Impact Factor



S. Jeyanthi This email address is being protected from spambots. You need JavaScript enabled to view it.1 and J. Janci Rani1

1Department of Automobile Engineering, MIT, Anna University, Chennai, India


Received: September 14, 2011
Accepted: December 2, 2011
Publication Date: September 1, 2012

Download Citation: ||  


Natural fibers have recently become attractive to automotive industry as an alternative reinforcement for glass fiber reinforced thermoplastics. The best way to increase the fuel efficiency without sacrificing safety is to employ fiber reinforced composite materials in the body of the cars so that weight reduction can be achieved. Designing the structures with the focus on improvement aspects is very important in the automotive industry. The goals are to increase the performance of the beams and also to find the solution to reduce the cost of beams hence able to reduce the production cost. The latest thermo plastic developments have resulted in higher material properties and more possibilities in the design of bumper beams. However the use of steel, Aluminum, Glass mat thermoplastics (GMT), sheet metal components (SMC) Bumpers becomes at higher cost than long fiber reinforced thermoplastics. This research is focused on partially eco-friendly hybrid long fiber reinforced thermo plastics with natural kenaf fiber to enhance the desired mechanical properties for car bumper beams as automotive structural components. A specimen without any modifier is tested and compared with a typical bumper beam material called LFRT. the results indicate that some mechanical properties such as tensile strength, young’s modulus, flexural strength an flexural modulus are more advantages to LFRT, the new material also must improve the ability to absorb more impact load and increase the protection of the front car component.

Keywords: Bumper Beam, LFRT, GMT, SMC, Kenaf Fiber, Hybrid


  1. [1] Shibata, S., Bozlur, R. M., Fukumoto, I. and Kanda, Y., “Effects of Injection Temperature on Mechanical Properties of Bagases/PP Injection Molding Components,” BioResources, Vol. 5, pp. 20972111 (2010).
  2. [2] Cheon, S. S., Choi, J. H. and Lee, D.G., “Development of the Composite Bumper Beam for Passenger Cars,” Composite Structures, Vol. 32, pp. 491499 (1995).
  3. [3] Cheon, S. S., Lim, T. S. and Lee, D. G., “Impact Energy Absorption Characteristics of Glass Fiber Hybrid Composites,” Composite Structures, Vol. 46, pp. 267 278 (1999).
  4. [4] Feng, Z. S. and Feng, S. Q., “Research of CA1092 Automotive Body Lightening,” Journal of Automobile Techno Mater, Vol. 58, pp. 89 (2002).
  5. [5] Jambor, A. and Beyor, M., “New Cars - New Materials,” Mater, Vol. 18, pp. 203209 (1997).
  6. [6] Bartus, S. D., Vaidya, U. K. and Ulven, C. A., “Design and Development of a Long Fiber Thermoplastic Bus Seat,” Composite Structures, Vol. 67, pp. 263277 (2005).
  7. [7] Hartness, T., Husman, G., Koeng, J. and Dyksterhouse, J., Composites Part A, Vol. 32, pp. 11551160 (2001).
  8. [8] Cicero, J. A., Dorgan, J. R., Dec, S. F. and Knauss, D. M., “Phosphite Stabilization Effects on Two Step Melt-Spun Fibers of Polyactide,” Polym Degrad Stab, Vol. 78, pp. 95105 (2002).
  9. [9] Mohanty, A., Misra, K. M. and Drzal, L. T., “Surface Modification of Natural Fibers to Improve Adhesion as Reinforcements for Thermoset Composites,” The Adhesion Society Proceedings of 24 th Annual Meeting of Adhesion Science for the 21st Century, Williamsburg, Virginia, pp. 418420 (2001).
  10. [10] Mohanty, A. K., Mishra, M. and Hinrichsen, G., “Biofibers Biodegradle Polymers and Bio Composites,” An Overview Macro Mol Mater Engg, Vol. 1, pp. 276277 (2000).
  11. [11] Chen, Y., Chiparus, O., Sun, L. and Parikh, D. V., “Use of Kenaf Fibers in Automotive Nonwovens,” Journal of Industrial Textiles, Vol. 35, pp. 4752 (2005).
  12. [12] American Society for Testing Materials. Standard Test Methods for Determining the Izod Impact Resistance of Plastics. ASTM., 256-04 (2004).
  13. [13] Annual Book of ASTM Standards, 08(1), pp. 149159.
  14. [14] Juan, P., Naughton, P. and Lee, R., “Evoluation of Instrument Panels Made of Polypropylene,” SAE 1998; 980067:7-14.



69th percentile
Powered by  Scopus

SCImago Journal & Country Rank

Enter your name and email below to receive latest published articles in Journal of Applied Science and Engineering.