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Article

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Title

Experimental Characterization of Aluminium/Polymer/Aluminium Sandwich Structures under VArious Loading Rates and Temperatures: Establishing a Constitutive Relationship for LDPE

Authors

[ 1 ] Instytut Analizy Konstrukcji, Wydział Inżynierii Lądowej i Transportu, Politechnika Poznańska | [ 2 ] Instytut Napędów i Lotnictwa, Wydział Inżynierii Lądowej i Transportu, Politechnika Poznańska | [ P ] employee

Scientific discipline (Law 2.0)

[2.7] Civil engineering, geodesy and transport

Year of publication

2025

Published in

Composite Structures

Journal year: 2025 | Journal volume: vol. 351

Article type

scientific article

Publication language

english

Keywords
EN
  • Alucobond
  • Composite sandwich structures
  • strain rate sensitivity
  • temperature sensitivity
  • mechanical behavior
  • LPDE (Low-Daensity Polyethylene)
Abstract

EN Composite sandwich structures, for example Alucobond, have appeared as auspicious materials in a diversity of engineering applications due to their lightweight, high strength to weight ratio and thermal insulation properties. Analyzing their mechanical behavior in different loading rates is critical to optimizing their performance. This study inspects the mechanical response of Alucobond sandwich composite structures under dynamic and quasi-static compression loadings. Dynamic compression tests, carried out at high strain rates, and quasi-static compression tests, carried out at lower strain rates and temperatures, were used to predict the behavior of the material under different loading conditions. In addition, the mechanical properties of the low-density polyethylene (LDPE) core layer were characterized under dynamic and quasi-static loading conditions, with varying strain rates and temperatures, leading to the establishment of a constitutive relationship for the LDPE material. The comparative study of Alucobond and LDPE highlights the influence of material composition and loading conditions on the mechanical behavior of the composite sandwich structures.

Date of online publication

01.01.2025

Pages (from - to)

118616-1 - 118616-12

DOI

10.1016/j.compstruct.2024.118616

URL

https://www.sciencedirect.com/science/article/pii/S026382232400744X

Comments

Article Number: 118616

License type

CC BY (attribution alone)

Open Access Mode

czasopismo hybrydowe

Open Access Text Version

final published version

Date of Open Access to the publication

in press

Ministry points / journal

140

Impact Factor

6,3 [List 2023]

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