Stress relaxation behavior of short kevlar fiber-reinforced thermoplastic polyurethane

Authors

  • Suni L. K. N. Kutty,

    1. Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721 302, India
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  • Golo K. B. Nando

    Corresponding author
    1. Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721 302, India
    • Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721 302, India
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Abstract

Stress relaxation behavior of short Kevlar fiber-reinforced thermoplastic polyurethane (TPU) is studied with respect to strain level, strain rate, fiber loading, and fiber orientation and temperature. The existence of a two-step relaxation mechanism for unfilled stock and a three-stage relaxation mechanism for the fiber-filled stock is reported.

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