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    Volume 6, Issue 1

    Wear Response of Walnut-Shell-Reinforced Epoxy Composites

    (Received 30 September 2016; accepted 10 January 2017)

    Published Online: 2017

    CODEN: MPCACD

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    Abstract

    Present work utilizes agricultural by-product, walnut shell, as reinforcing filler in epoxy matrix for investigating dry sliding wear behavior using a pin-on disc wear-testing machine. Effects of sliding velocity (0.5–1.5 m/s), normal load (10–50 N), sliding distance (1000–3000 m) and filler content (10–30 wt. %) on wear rate (Wt), specific wear rate (Ws) and coefficient of friction (μ) are investigated. The experiments were planned as per design of the experiments scheme and the wear characteristics were analyzed through response surface modeling (RSM) method. The lowest Wt of 1.1 mm3/km was noted for 1.5 m/s sliding velocity with 30-wt. % filler content. Sliding distance did not have a significant influence on Ws above a critical load of 40 N. The minimum μ was observed at 1-m/s sliding velocity, 40-N load, 1000-m sliding distance, and 30-wt. % filler. Lower values of Wt and μ at higher walnut-shell loadings support feasibility of using such composites in wear-prone applications. The wear mechanism was determined in the composites using extensive scanning electron microscopic observations.


    Author Information:

    Doddamani, M.
    Advanced Manufacturing Laboratory, Dept. of Mechanical Engineering, National Inst. of Technology, Surathkal, Karnataka

    Parande, G.
    BVB College of Engineering and Technology, Hubli, Karnataka

    Manakari, V.
    BVB College of Engineering and Technology, Hubli, Karnataka

    Siddhalingeshwar, I. G.
    BVB College of Engineering and Technology, Hubli, Karnataka

    Gaitonde, V. N.
    BVB College of Engineering and Technology, Hubli, Karnataka

    Gupta, N.
    Composite Materials and Mechanics Laboratory, Mechanical and Aerospace Engineering Dept., Tandon School of Engineering, New York Univ., Brooklyn, NY


    Stock #: MPC20160113

    ISSN:2165-3992

    DOI: 10.1520/MPC20160113

    Author
    Title Wear Response of Walnut-Shell-Reinforced Epoxy Composites
    Symposium ,
    Committee D20