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Recovery of Low-Velocity Impact Properties of Glass Fiber Reinforced Composites Through Self-Healing Technique

[+] Author Affiliations
Shaik Zainuddin, Arefin Tauhid, Mahesh V. Hosur, Shaik Jeelani

Tuskegee University, Tuskegee, AL

Ashok Kumar

U.S. Army Engineer Research and Development Center, Champaign, IL

Paper No. IMECE2013-66771, pp. V009T10A010; 8 pages
doi:10.1115/IMECE2013-66771
From:
  • ASME 2013 International Mechanical Engineering Congress and Exposition
  • Volume 9: Mechanics of Solids, Structures and Fluids
  • San Diego, California, USA, November 15–21, 2013
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5638-3
  • Copyright © 2013 by ASME

abstract

In this study, we report the self-healing of e-glass/epoxy composites achieved through embedding self-healing agents (SHA) filled hollow glass fibers (HGFs). At first, catalytic technique was used to fill bonded HGFs with SHA. The HGFs were then laid on e-glass fibers and the laminates were fabricated using vacuum assisted resin molding (VARIM) technique. Low-velocity impact tests at two different energy levels were conducted multiple times in the closest proximity to determine the healing efficiency. Optical microscopic study was done to see the changes in the SHA filled HGFs samples before and after impact. Results showed significant recovery of impact properties with 4.47% lost in peak load after second impact in SHA samples whereas it was 27.7% in control samples. The loss in energy to peak load was 20.44% in SHA filled samples, whereas 41% in control samples. Optical microscopy images showed filling of cracks produced after impact with SHA reflecting the significant recovery of impact properties.

Copyright © 2013 by ASME

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