Title
Torsional progressive damage mechanisms in 3-D braided carbon fiber/ epoxy resin composite tubes
Author
XUN, L. (TU Delft Structural Integrity & Composites; Donghua University)
Mosleh, Yasmine (TU Delft Bio-based Structures & Materials) 
Sun, Baozhong (Donghua University)
Pascoe, J.A. (TU Delft Group Pascoe)
Gu, Bohong (Donghua University)
Date
2024
Abstract
3-D braided composites are a promising material for manufacturing tubular structures. However, a thorough understanding of their damage mechanisms under torsion is required to maximize their potential applications. The present work constructed a multiscale equivalent model, integrating mesoscopic and homogeneous structures to reveal torsional behavior of 3-D braided carbon fiber/epoxy resin composite tubes. The cumulative failure process, spatial stress distribution and interface damage were calculated to illustrate stress transfer and damage initiation and propagation. It is found that stress varies on the surface and internally within the representative unit cell (RUC). The yarns experience both axial tension parallel to the direction of torsion and axial compression perpendicular to the direction of torsion. The stress difference between them leads to damage initiation and propagation. Interfacial cracking as main damage mode hinders the stress transfer between resin and fiber bundles. The results show that the braided yarn path, axial stress dispersion in two directions and localization of damage effectively impede the torsional damage propagation.
Subject
Polymer-matrix composites (PMCs)
Fracture
Finite element analysis (FEA)
Braiding
Fractional diffusion
3D braided
Carbon fibre epoxy
Tubular structure
FRP composite
To reference this document use:
http://resolver.tudelft.nl/uuid:80d6a81b-f28b-4adf-8750-105e15b948e3
DOI
https://doi.org/10.1016/j.compscitech.2024.110615
Embargo date
2024-10-18
ISSN
0266-3538
Source
Composites Science and Technology, 252
Bibliographical note
Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
Part of collection
Institutional Repository
Document type
journal article
Rights
© 2024 L. XUN, Yasmine Mosleh, Baozhong Sun, J.A. Pascoe, Bohong Gu