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Measurement and prediction of compressive properties of polymers at high strain rate loading

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Main Authors: Mohd Firdaus, Omar, Hazizan, Md Akil, Assoc. Prof. Dr., Zainal Ariffin, Ahmad, Prof. Hj.
Format: Article
Language:English
Published: Elsevier Ltd. 2011
Subjects:
Thermoplastic
Mechanical
Destructive testing
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/15075
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spelling my.unimap-150752011-10-27T05:15:18Z Measurement and prediction of compressive properties of polymers at high strain rate loading Mohd Firdaus, Omar Hazizan, Md Akil, Assoc. Prof. Dr. Zainal Ariffin, Ahmad, Prof. Hj. Thermoplastic Mechanical Destructive testing Link to publisher's homepage at http://www.elsevier.com/ Strain-rate effect is widely recognized as a crucial factor that influences the mechanical properties of material. Despite the acknowledge importance, the understanding of how such factor interact with the sensitivity of the polymers in terms of mechanical properties is still less reported. In this study, an experimental technique, based on the compression split Hopkinson pressure bar, was introduced to perform high strain rate testing, whereas, a conventional universal testing machine was used to perform static compression testing, to experimentally investigate the independent and interactive effects of strain rates towards mechanical properties of various polymers. Based on the experimental results, we parameterized two equation models, which were used to predict the yield behavior of tested polymer samplings. The experimental results indicate that, the yield stress, compression modulus, compressive strength, strain rate sensitivity and strain energy increased significantly with increasing strain rates for all tested polymers. Meanwhile, the yield strain and the thermal activation volume exhibit contrary trend to the increasing strain rates. Interestingly, the proposed constitutive models were almost agreed well with experimental results over a wide range of strain rate investigated. Of the three polymers, polypropylene shows the highest strain rate sensitivity at static and quasi-static region. On the other hand, at dynamic region, polycarbonate shows the highest strain rate sensitivity than that of polypropylene and polyethylene. Overall, both experimental and numerical models proved that the mechanical properties of polymer show significant sensitivity and dependency towards applied strain rates up to certain extent. 2011-10-27T05:15:17Z 2011-10-27T05:15:17Z 2011-09 Article Materials and Design, vol. 32 (8-9), 2011, pages 4207-4215 0261-3069 http://www.sciencedirect.com/science/article/pii/S0261306911003062 http://hdl.handle.net/123456789/15075 en Elsevier Ltd.
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Thermoplastic
Mechanical
Destructive testing
spellingShingle Thermoplastic
Mechanical
Destructive testing
Mohd Firdaus, Omar
Hazizan, Md Akil, Assoc. Prof. Dr.
Zainal Ariffin, Ahmad, Prof. Hj.
Measurement and prediction of compressive properties of polymers at high strain rate loading
description Link to publisher's homepage at http://www.elsevier.com/
format Article
author Mohd Firdaus, Omar
Hazizan, Md Akil, Assoc. Prof. Dr.
Zainal Ariffin, Ahmad, Prof. Hj.
author_facet Mohd Firdaus, Omar
Hazizan, Md Akil, Assoc. Prof. Dr.
Zainal Ariffin, Ahmad, Prof. Hj.
author_sort Mohd Firdaus, Omar
title Measurement and prediction of compressive properties of polymers at high strain rate loading
title_short Measurement and prediction of compressive properties of polymers at high strain rate loading
title_full Measurement and prediction of compressive properties of polymers at high strain rate loading
title_fullStr Measurement and prediction of compressive properties of polymers at high strain rate loading
title_full_unstemmed Measurement and prediction of compressive properties of polymers at high strain rate loading
title_sort measurement and prediction of compressive properties of polymers at high strain rate loading
publisher Elsevier Ltd.
publishDate 2011
url http://dspace.unimap.edu.my/xmlui/handle/123456789/15075
_version_ 1643790837716353024
score 13.214268

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