Article (Scientific journals)
Per-phase spatial correlated damage models of UD fibre reinforced composites using mean-field homogenisation; applications to notched laminate failure and yarn failure
Wu, Ling; Zhang, Tianyu; Maillard, Etienne et al.
2021In Computers and Structures, 257, p. 106650
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NOTICE: this is the author’s version of a work that was accepted for publication in Computers & Structures. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Computers & Structures 257 (2021), 106650. DOI: 10.1016/j.compstruc.2021.106650


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Keywords :
Mean-field homogenisation; Phase-field; Fibre bundle failure; Matrix cracking; Woven composites; UD laminates
Abstract :
[en] micro-mechanical model for fibre bundle failure is formulated following a phase-field approach and is embedded in a semi-analytical homogenisation scheme. In particular mesh-independence and consistency of energy release rate for fibre bundles embedded in a matrix phase are ensured for fibre dominated failure. Besides, the matrix cracking and fibre-matrix interface debonding are modelled through the evolution of the matrix damage variable framed in an implicit non-local form. Considering the material parameters of both fibre and epoxy matrix phases identified from manufacturer data sheets, it is shown that the failure strength of a ply loaded along the longitudinal direction is in agreement with the reported values. Finally, the multi-damage homogenisation framework is applied to model, on the one hand, the failure of a notched laminate, in which case the failure modes are observed to be in good agreement with experiments, and, on the other hand, the failure of yarns in a plain woven composite unit-cell under uni-axial tension
Research center :
A&M - Aérospatiale et Mécanique - ULiège
Disciplines :
Materials science & engineering
Aerospace & aeronautics engineering
Mechanical engineering
Author, co-author :
Wu, Ling ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Computational & Multiscale Mechanics of Materials (CM3)
Zhang, Tianyu ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Computational & Multiscale Mechanics of Materials (CM3)
Maillard, Etienne;  SONACA SA
Adam, Laurent;  MSC Software Belgium SA
Martiny, Philippe;  MSC Software Belgium SA
Noels, Ludovic  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Computational & Multiscale Mechanics of Materials (CM3)
Language :
English
Title :
Per-phase spatial correlated damage models of UD fibre reinforced composites using mean-field homogenisation; applications to notched laminate failure and yarn failure
Publication date :
December 2021
Journal title :
Computers and Structures
ISSN :
0045-7949
Publisher :
Elsevier, United Kingdom
Volume :
257
Pages :
106650
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
The research has been funded by the Walloon Region under the agreement no.7911-VISCOS in the context of the 21st SKYWIN call.
Funders :
SPW - Service Public de Wallonie [BE]
Available on ORBi :
since 06 August 2021

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