High velocity impact behavior of Kevlar/rubber and Kevlar/epoxy composites: A comparative study

Omid Razmkhah, Samaneh Asemani, Yavar Anani, Hamed Ahmadi, Ahmad Raza Bahramian, Gholamhossein Liaghat, Amin Khodadadi

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

This paper presents a comparison of behavior and energy absorption of neat Kevlar fabric and polymer matrix composites under high velocity impact loading. Two types of matrices including rubber and thermoset (epoxy) matrices were used in order to study the effect of a hard and brittle matrix compared with the soft and flexible matrix on energy absorption of the composite. Moreover, two types of rubber matrix with high hardness (HH) and low hardness (LH) were used in this study to investigate the effect of rubber matrix formulation on impact resistance of composites. Ballistic impact tests were performed by firing a 10 mm hemispherical projectile onto neat fabric and composites in a velocity range of 30–150 m/s for two- and four-layer samples. Results show that the matrix affects the ballistic performance of composites significantly. Rubber matrix enhances the energy absorption of the fabric by keeping composite flexibility. Increase the number of layers for Kevlar/rubber composite results in better ballistic performance. On the contrary, the thermoset matrix leads to an inflexible composite that restricts the fabric deformation and has a negative effect on the fabric's ballistic performance. Finally, damage mechanisms were discussed in detail for each sample.

Original languageEnglish
Pages (from-to)159-167
Number of pages9
JournalComposite Structures
Volume216
Early online date19 Feb 2019
DOIs
Publication statusPublished - 15 May 2019

Fingerprint

Rubber
Ballistics
Composite materials
Energy absorption
Thermosets
Hardness
Polymer matrix composites
Impact resistance
Projectiles

Bibliographical note

NOTICE: this is the author’s version of a work that was accepted for publication in Composite Structures. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Composite Structures, [In-press], (2019)] DOI: 10.1016/j.compstruct.2019.02.080

© 2019, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

Keywords

  • Energy absorption
  • High velocity impact
  • Kevlar fabric
  • Rubber matrix composite
  • TS matrix composite

ASJC Scopus subject areas

  • Ceramics and Composites
  • Civil and Structural Engineering

Cite this

High velocity impact behavior of Kevlar/rubber and Kevlar/epoxy composites : A comparative study. / Razmkhah, Omid; Asemani, Samaneh; Anani, Yavar; Ahmadi, Hamed; Bahramian, Ahmad Raza; Liaghat, Gholamhossein; Khodadadi, Amin.

In: Composite Structures, Vol. 216, 15.05.2019, p. 159-167.

Research output: Contribution to journalArticle

Razmkhah, Omid ; Asemani, Samaneh ; Anani, Yavar ; Ahmadi, Hamed ; Bahramian, Ahmad Raza ; Liaghat, Gholamhossein ; Khodadadi, Amin. / High velocity impact behavior of Kevlar/rubber and Kevlar/epoxy composites : A comparative study. In: Composite Structures. 2019 ; Vol. 216. pp. 159-167.
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