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

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

doi:10.1016/j.compstruct.2019.02.080

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

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

Tarbiat Modares University

Research output: Contribution to journal › Article › peer-review

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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 language	English
Pages (from-to)	159-167
Number of pages	9
Journal	Composite Structures
Volume	216
Early online date	19 Feb 2019
DOIs	https://doi.org/10.1016/j.compstruct.2019.02.080
Publication status	Published - 15 May 2019

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, 216, (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

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10.1016/j.compstruct.2019.02.080

Post-PrintAccepted author manuscript, 1.61 MBLicence: CC BY-NC-ND

Cite this

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title = "High velocity impact behavior of Kevlar/rubber and Kevlar/epoxy composites: A comparative study",

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.",

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author = "Amin Khodadadi and Gholamhossein Liaghat and Bahramian, {Ahmad Raza} and Hamed Ahmadi and Yavar Anani and Samaneh Asemani and Omid Razmkhah",

note = "NOTICE: this is the author{\textquoteright}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, 216, (2019) DOI: 10.1016/j.compstruct.2019.02.080 {\textcopyright} 2019, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ ",

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AU - Khodadadi, Amin

AU - Liaghat, Gholamhossein

AU - Bahramian, Ahmad Raza

AU - Ahmadi, Hamed

AU - Anani, Yavar

AU - Asemani, Samaneh

AU - Razmkhah, Omid

N1 - 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, 216, (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/

PY - 2019/5/15

Y1 - 2019/5/15

N2 - 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.

AB - 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.

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JO - Composite Structures

JF - Composite Structures

ER -

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

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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Omid Razmkhah

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

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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Fingerprint

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Omid Razmkhah

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