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This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
© 2024 The Authors. Engineering Reports published by John Wiley & Sons Ltd.In contrast to single-phase materials the manufacturing process of composites creates multiscale interfaces among constituent materials and between laminar multilayers. Targeting the interfaces in these composite structures, this paper presents a perspective study on the impact safety of potential future composite rail vehicles. The aim is to conceptually explore the key role of interfacial discontinuities of composite material structures as they are a critical issue affecting the impact performance of future composite rail vehicles. Following a theoretical description, the issues are addressed in two parts. First, composite materials are characteristically analyzed from the perspective of their interfacial discontinuities within the materials and between the laminate multilayers to identify their influence. Second, the structural conditions required for crashworthiness are determined in relation to the dual requirements of global stability and local deformability for efficient energy absorption. The key findings are: (1) The interfacial discontinuities of the material phases and the designed structural assemblies need to be tailored for crashworthiness performance and (2) Global stability and locally deformability are the key dual requirements for the energy absorbing progressive deformations that are essential for application of composite for crashworthiness of rail vehicles. The research conceptually explores a key issue of the impact mechanics of composite structures from the perspective of impact safety of composite rail vehicles.
Author(s): Xue X, Robinson M, Zhang W
Publication type: Article
Publication status: Published
Journal: Engineering Reports
Year: 2024
Volume: 6
Issue: 10
Print publication date: 01/10/2024
Online publication date: 21/02/2024
Acceptance date: 06/02/2024
Date deposited: 08/11/2024
ISSN (electronic): 2577-8196
Publisher: John Wiley and Sons Inc
URL: https://doi.org/10.1002/eng2.12868
DOI: 10.1002/eng2.12868
Data Access Statement: Data will be made available on request.
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