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Quantifying the effects of geometric parameters on the bending stiffness of multilayer graphene platelet films

Qi, Penghao ORCID: https://orcid.org/0000-0003-2901-1443, Chen, Xindong, Zhu, Hanxing ORCID: https://orcid.org/0000-0002-3209-6831, Lyu, Yongtao and Peng, Qing 2025. Quantifying the effects of geometric parameters on the bending stiffness of multilayer graphene platelet films. Carbon , 121023. 10.1016/j.carbon.2025.121023

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Abstract

Multilayer graphene platelet films (MGPFs) are widely used in many different applications like flexible electronics and bendable devices, however, the bending stiffness of MGPFs could significantly affect the functions and reliability of such products. Although some 2D models have been developed to investigate the effects of geometric parameters and component material properties on the bending stiffness of graphene films, these 2D models can’t correctly capture the actual 3D geometric characteristics of MGPFs and thus may not be able to accurately predict the bending stiffness of MGPFs. In this work, thousands of realistic multiscale 3D geometric models are constructed to perform finite element simulations and quantify the effects of geometric parameters and component material properties on the bending stiffness of MGPFs, the obtained results are normalized by those of the perfect large-sized graphene films and compared with those available in literature. The developed models and the obtained results apply not only to MGPFs, but also to other types of multilayer laminate composites such as MXene, graphene oxide films and nacre-like materials. The results provide guidelines for the optimal design of MGPFs and other laminate composites, enabling their potential in diverse applications.

Item Type: Article
Date Type: Published Online
Status: In Press
Schools: Schools > Engineering
Publisher: Elsevier
ISSN: 0008-6223
Date of First Compliant Deposit: 2 November 2025
Date of Acceptance: 1 November 2025
Last Modified: 04 Nov 2025 16:30
URI: https://orca.cardiff.ac.uk/id/eprint/182037

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