Compression testing of EPP bead foams in a vacuum chamber : Experimental investigation on the influence of the cell gas

DOI zum Zitieren der Version auf EPub Bayreuth: https://doi.org/10.15495/EPub_UBT_00008347
URN to cite this document: urn:nbn:de:bvb:703-epub-8347-9

Title data

Meuchelböck, Johannes ; Koch, Ilja ; Grüber, Bernd ; Müller-Pabel, Michael ; Gude, Maik ; Ruckdäschel, Holger:
Compression testing of EPP bead foams in a vacuum chamber : Experimental investigation on the influence of the cell gas.
In: Polymer Testing. Vol. 132 (2024) . - 108388.
ISSN 1873-2348
DOI der Verlagsversion: https://doi.org/10.1016/j.polymertesting.2024.108388

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Project information

Project title:	Project's official title Project's id Open Access Publizieren No information
Project financing:	Deutsche Forschungsgemeinschaft

Abstract

In this study, we systematically investigate the compression behavior of Expanded Polypropylene (EPP) bead foams using precise experiments in a custom-designed vacuum chamber. The material’s response is examined under controlled pressure conditions, including compression tests at both ambient pressure and 4 mbar, at various strain rates. Considering that most foams consist of more than 90% air, our focus is on elucidating the influence of cell gas on mechanical properties, such as compression modulus, plateau stress, plateau slope, and energy absorption. The impact of cell gas on recovery behavior was analyzed by loading–unloading-steps in the vacuum chamber. Notably, the presence of cell gas shows a pronounced effect on the foam’s deformation behavior, particularly in the plateau region, significantly affecting its resistance to deformation and energy absorption. The findings offer valuable insights for the development of foam materials and structures/components made of foams, especially in applications where resilience and durability are paramount.

Further data

Item Type:	Article in a journal
Keywords:	Mechanical testing; Compression testing in vacuum; Bead foam; Polymer; Energy absorption; Cell gas
DDC Subjects:	600 Technology, medicine, applied sciences > 620 Engineering
Institutions of the University:	Faculties > Faculty of Engineering Science > Chair Polymer Materials > Chair Polymer Materials - Univ.-Prof. Dr.-Ing. Holger Ruckdäschel Faculties Faculties > Faculty of Engineering Science Faculties > Faculty of Engineering Science > Chair Polymer Materials
Language:	English
Originates at UBT:	Yes
URN:	urn:nbn:de:bvb:703-epub-8347-9
Date Deposited:	25 Mar 2025 09:01
Last Modified:	25 Mar 2025 09:02
URI:	https://epub.uni-bayreuth.de/id/eprint/8347

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