Impact response of Kevlar/rubber composite

This study aims to investigate the impact performance of composite panels consisting of plain-woven Kevlar fabric and rubber matrix. A finite element (FE) model in conjunction with experimental tests was developed to simulate the response of neat fabric and composite under impact loading. Each warp...

Full description

Saved in:
Bibliographic Details
Published in:Composites science and technology 2019-11, Vol.184, p.107880, Article 107880
Main Authors: Khodadadi, Amin, Liaghat, Gholamhossein, Ahmadi, Hamed, Bahramian, Ahmad Reza, Razmkhah, Omid
Format: Article
Language:English
Subjects:
Antiballistic materials
Aramid fiber reinforced plastics
Composite materials
Computer simulation
Deformation mechanisms
Energy absorption
Finite element analysis
Finite element method
Hardness
High velocity impact
Impact damage
Impact loads
Impact resistance
Impact response
Kevlar (trademark)
Kevlar/rubber composite
Ls-dyna
Mechanical properties
Molecular chains
Natural rubber
Rubber
Split Hopkinson pressure bars
Warp
Weft
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This study aims to investigate the impact performance of composite panels consisting of plain-woven Kevlar fabric and rubber matrix. A finite element (FE) model in conjunction with experimental tests was developed to simulate the response of neat fabric and composite under impact loading. Each warp and weft yarn of fabric was individually modeled and combined with rubber matrix network to form the composite. To understand the effect of natural rubber on impact resistance of Kevlar/rubber composites, two types of rubber with different formulation were considered and their mechanical properties were obtained by split Hopkinson pressure bar tests and assigned to the model. Numerical results showed good agreement with the experimental data for both neat fabric and composite. It was shown that rubber matrix improves the ballistic performance of Kevlar fabric by keeping composite flexibility. High hardness rubber matrix composite has higher energy absorption capacity compared to the low hardness rubber matrix composite, due to presence of stronger intermolecular chains. Additionally, deformation and damage mechanism of fabric and composite were investigated under impact loading. The results were presented, discussed and commented upon.
ISSN:0266-3538
1879-1050
DOI:10.1016/j.compscitech.2019.107880