Article
  • Comparative Study of Shape Memory Alloy Reinforced Kevlar Polymer Composite in Sheet and Wire Form with Plain Kevlar Polymer Composite
  • R. Prabu , K. M. Kumar*, R. Selvam*, and K. R. Vijaya Kumar**

  • School of Maritime Studies, Vels Institute of Science, Technology & Advanced Studies, 603103, India
    *St. Joseph’s College of Engineering, 600119, India
    **Dr. MGR Educational and Research Institute, 600095, India

  • 쉬트와 와이어 형태를 가진 형상기억합금 강화 케블라 고분자 복합체와 일반 케블라 고분자 복합체의 비교 연구
  • Reproduction, stored in a retrieval system, or transmitted in any form of any part of this publication is permitted only by written permission from the Polymer Society of Korea.

Abstract

The main objective of this work is to investigate the effect of shape memory alloy reinforcement in Kevlar polymer composites on mechanical and low-velocity impact properties. The sheet and wire forms of shape memory alloy (SMA-nickel-titanium alloy) are used as potential reinforcements in Kevlar-reinforced polymer composite. The developed composites were analyzed for tensile and flexural behavior. The effective bonding area, referred to as core density, contributes to incremental flexural strength in the SMA sheet reinforced composites. The developed composites exhibited better impact resistance during low-velocity impact tests at different velocities, 2.80, 3.96, and 4.85 m/sec, and simulated using a CEAST drop hammer testing machine. The impact surface of the specimen was studied on a micro-level using SEM analysis and macro-level using Image J software. The impact force, the energy absorbed, and the deformation of the specimen during impact were recorded and analyzed. The experimental results reveal that the SMA sheet reinforced Kevlar composites exhibited appreciable impact resistance with maximum energy absorbing capacity comparatively with plain Kevlar and SMA wire reinforced composites


Keywords: low-velocity impact, shape memory alloy, Kevlar, better adhesion, fiber cracking, inter crystalline fracture

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2021; 45(3): 353-362

    Published online May 25, 2021

  • 10.7317/pk.2021.45.3.353
  • Received on Oct 14, 2020
  • Revised on Dec 8, 2020
  • Accepted on Dec 31, 2020

Correspondence to

  • R. Prabu
  • School of Maritime Studies, Vels Institute of Science, Technology & Advanced Studies, 603103, India

  • E-mail: rprabu.smts@velsuniv.ac.in