On the dynamic tensile behaviour of thermoplastic composite carbon/polyamide 6.6 using split Hopkinson pressure bar
File(s)materials-14-01653-v2.pdf (4.88 MB)
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OA Location
Author(s)
Mohsin, Muhammad
Iannucci, Lorenzo
Greenhalgh, emile
Type
Journal Article
Abstract
A dynamic tensile experiment was performed on a rectangular specimen of a non-crimp fabric (NCF) thermoplastic composite T700 carbon/polyamide 6.6 specimens using a split Hopkinson pressure (Kolsky) bar (SHPB). The experiment successfully provided useful information on the strain-rate sensitivity of the NCF carbon/thermoplastic material system. The average tensile strength at three varying strain rates: 700, 1400, and 2100/s was calculated and compared to the tensile strength measured from a standardized (quasi-static) procedure. The increase in tensile strength was found to be 3.5, 24.2, and 45.1% at 700, 1400, and 2100/s strain rate, respectively. The experimental findings were used as input parameters for the numerical model developed using a commercial finite element (FE) explicit solver LS-DYNA®. The dynamic FE model was validated against experimental gathering and used to predict the composite system’s behavior in various engineering applications under high strain-rate loading conditions. The SHPB tension test detailed in this study provided the enhanced understanding of the T700/polyamide 6.6 composite material’s behavior under different strain rates and allowed for the prediction of the material’s behavior under real-world, dynamic loading conditions, such as low-velocity and high-velocity impact.
Date Issued
2021-03-27
Date Acceptance
2021-03-22
Citation
Materials, 2021, 14 (7)
ISSN
1996-1944
Publisher
MDPI
Journal / Book Title
Materials
Volume
14
Issue
7
Copyright Statement
© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative CommonsAttribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/)
License URL
Sponsor
Commission of the European Communities
Grant Number
FP7 - 278368
Subjects
Science & Technology
Physical Sciences
Technology
Chemistry, Physical
Materials Science, Multidisciplinary
Metallurgy & Metallurgical Engineering
Physics, Applied
Physics, Condensed Matter
Chemistry
Materials Science
Physics
thermoplastic composites
high-performance composites
composite structures
NCF composites
dynamic tensile
split Hopkinson pressure bar
numerical modelling
strain-rate sensitivity
NCF composites
composite structures
dynamic tensile
high-performance composites
numerical modelling
split Hopkinson pressure bar
strain-rate sensitivity
thermoplastic composites
03 Chemical Sciences
09 Engineering
Publication Status
Published
Article Number
ARTN 1653