EPS eLibrary: EULER-LAGRANGE NUMERICAL MODELLING FOR THE ASSESSMENT OF THE SUITABILITY OF INJECTION MOULDS FOR RECYCLED PLASTICS USED IN STRUCTURAL ELEMENTS

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Title: EULER-LAGRANGE NUMERICAL MODELLING FOR THE ASSESSMENT OF THE SUITABILITY OF INJECTION MOULDS FOR RECYCLED PLASTICS USED IN STRUCTURAL ELEMENTS

Year

2025

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257

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Title

EULER-LAGRANGE NUMERICAL MODELLING FOR THE ASSESSMENT OF THE SUITABILITY OF INJECTION MOULDS FOR RECYCLED PLASTICS USED IN STRUCTURAL ELEMENTS

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Authors

Adrian-Alexandru Savu; Andrei-Dan Sabau

DOI

10.5593/sgem2025/6.1/s26.48

DOI Issue

10.5593/sgem2025/6.1

ISSN

1314-2704

ISBN

978-619-7603-87-3

Language

English

Volume

Issue

6.1

Editor

• Prof. Dr. hab. oec. Baiba Rivza, LATVIA• Prof. DSc. Ildiko Tulbure, GERMANY• Prof. DSc. Oleksandr Trofymchuk, UKRAINE

Scientific Area

Green Design, Sustainable Cities and Architecture

Abstract/ Foreword

To increase the adoption of recycled plastics in the construction industry and to make this material economically viable, it is of outmost importance to develop technological processes that can make contaminated or dirty plastics useful. This study applies an Euler-Lagrange numerical approach to evaluate the suitability of injection moulds for optimized structural elements made from contaminated recycled polyethylene and to check if the mould shapes are compatible with a normal injection technological process. The viscosity of the material is strongly related to the injection temperature, and as such, a temperature dependent formulation was considered in the numerical model.
Furthermore, by simulating the injection moulding process with varying levels of contamination and temperature gradients, researchers can eventually establish a database of material properties and predict the structural performance of the final products using machine-learning methods. This data-driven approach is crucial for establishing quality control measures and building confidence in the use of recycled polyethylene for load-bearing applications.
This type of modelling will enable designers to account for structural defects in the material due to the injection process and the nature of the contaminates present in the recycled polyethylene. Also, modelling the process in this manner may allow for developing new topological optimization rules and objective functions aimed at enhancing the performance of recycled polyethylene components, ultimately driving more sustainable practices in the construction industry.

References (click to open)

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Acknowledgements (click to open)

N/A

Type

conference

Url

https://doi.org/10.5593/sgem2025/6.1/s26.48

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EULER-LAGRANGE NUMERICAL MODELLING FOR THE ASSESSMENT OF THE SUITABILITY OF INJECTION MOULDS FOR RECYCLED PLASTICS USED IN STRUCTURAL ELEMENTS

Proceedings Тitle

Proceedings of 25th International Multidisciplinary Scientific GeoConference SGEM 2025, Volume 25, Issue 6.1

Note

25th International Multidisciplinary Scientific GeoConference SGEM 2025, Volume 25, Issue 6.1, 29 June - 6 July, 2025

Type

Proceedings Paper

Publisher

STEF92 Technology

Series

International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM

Organization

SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.

Pages

343-350

Date

29 June - 6 July, 2025

Online Source Type

website

Digital Source Type

10242

Keywords

Euler-Lagrange, recycled plastics, contaminated plastics, structural elements, injection moulding