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The Effect Of Fiber Reinforcement On Fracture Toughness Assessment Of Nanoclay Filled Polymer Composites

Author

Listed:
  • S. ARULMURUGAN

    (Department of Mechanical Engineering, Rajalakshmi Engineering College, Anna University, Chennai 602105, India)

  • N. VENKATESHWARAN

    (Department of Mechanical Engineering, Rajalakshmi Engineering College, Anna University, Chennai 602105, India)

Abstract

This paper represents the nanomechanical properties of various loading levels of montmorillonite clay filled polyester composites and randomly distributed jute fiber reinforced hybrid composites through Vickers micro-hardness test. The study of indentation fracture mechanics in polymer materials is a simple and cost-effective technique for the determination of fracture toughness. Ultrasonication technique was used to disperse the clay in the polyester matrix. The hand layup method was adapted to prepare the test specimens. Incorporation of 5wt.% montmorillonite clay into the polymer matrix results in an enhancement in hardness of 26.52% and the modulus of elasticity increased from 4205.21MPa for neat polyester to 5051.46MPa with the addition of clay. Fracture toughness was observed to depend on the montmorillonite clay content, and the maximum value was observed at 5wt.% nanoclay and 25wt.% jute fibers. The results show that the increase in the fiber content reduces the crack propagation in hybrid composites and increases the fracture toughness. To predict the crack size, the scanning electron microscope images are used.

Suggested Citation

  • S. Arulmurugan & N. Venkateshwaran, 2019. "The Effect Of Fiber Reinforcement On Fracture Toughness Assessment Of Nanoclay Filled Polymer Composites," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 26(09), pages 1-8, November.
    • Handle: RePEc:wsi:srlxxx:v:26:y:2019:i:09:n:s0218625x19500501
    DOI: 10.1142/S0218625X19500501
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