WSEAS Transactions on Environment and Development

Print ISSN: 1790-5079
E-ISSN: 2224-3496

Volume 14, 2018

Notice: As of 2014 and for the forthcoming years, the publication frequency/periodicity of WSEAS Journals is adapted to the 'continuously updated' model. What this means is that instead of being separated into issues, new papers will be added on a continuous basis, allowing a more regular flow and shorter publication times. The papers will appear in reverse order, therefore the most recent one will be on top.

Volume 14, 2018

Influence of Fall Height Setting on Drop Weight Tested Polypropylene and its Crack Growing

AUTHORS: Lenka Hylova, Ales Mizera, Miroslav Manas, David Manas, Stanislav Sehnalek, Milena Kubisova

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ABSTRACT: This study deals with polypropylene (PP) which was subjected the drop-weight test. PP is a semicrystalline thermoplastic polymer which is commonly used in many indoor applications and also in the automotive industry in the car interiors. Injection moulded PP samples were subjected the penetration test at different fall heights and the results were subsequently evaluated and discussed. It was found out that the potential energy from 100 to 230 J are suitable for PP penetration; however, as the optimal 100 J can be considered. Higher heights are not needed because of increasing power consumption of the test device. With regard to deformation and crack growing thus PP is a tough material which is firstly plastically deformed and then on one side there is stress concentration, after that the crack spread around the penetrator. This material can be considered as a suitable material for impact applications from point of view of multiaxial impact load

KEYWORDS: polypropylene, drop-weight tester, sample penetration, impact resistance, impact energy, fall height


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WSEAS Transactions on Environment and Development, ISSN / E-ISSN: 1790-5079 / 2224-3496, Volume 14, 2018, Art. #25, pp. 243-250

Copyright © 2018 Author(s) retain the copyright of this article. This article is published under the terms of the Creative Commons Attribution License 4.0

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