Imperial College London
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Pedro M. Baiz V.

Faculty of Engineering, Department of Computing

Honorary Senior Research Fellow
 
 
 
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Contact

 

+44 (0)7916 253 021p.m.baiz

 
 
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Location

 

ACE ExtensionSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Chen:2014:10.1016/j.engfracmech.2014.05.018,
author = {Chen, BY and Pinho, ST and De, Carvalho NV and Baiz, PM and Tay, TE},
doi = {10.1016/j.engfracmech.2014.05.018},
journal = {Engineering Fracture Mechanics},
pages = {104--134},
title = {A floating node method for the modelling of discontinuities in composites},
url = {http://dx.doi.org/10.1016/j.engfracmech.2014.05.018},
volume = {127},
year = {2014}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - This paper presents a new method suitable for modelling multiple discontinuities within a finite element. The architecture of the proposed method is similar to that of the phantom node method (which is equivalent to XFEM with Heaviside enrichment), and the solution of it is equivalent to local remeshing within the cracked element. The new method shows several advantages over the phantom node method, such as avoiding errors in the mapping of the crack geometry from the physical to the natural space and avoiding performing integrations over only part of an element. Compared to remeshing, the proposed method enables the representation of discontinuities through relatively closed FE codes (such as user-defined elements) without modifying the initial mesh and geometry, thus making it computationally more efficient. Additionally, the proposed method is particularly suited for modelling weak and cohesive discontinuities and for the representation of complex crack networks; it can model multiple plies and interfaces of a composite laminate, and both matrix crack and delamination, within a user-defined element; the information is shared between the plies and interfaces within such an element, allowing the direct implementation of interactive mechanisms. Verification examples show that the floating node method can predict stress intensity factors and crack propagation accurately. An application example shows that the proposed method can predict well the transition from matrix cracking to delamination and the subsequent saturation of matrix crack density in a cross-ply laminate.
AU  - Chen,BY
AU  - Pinho,ST
AU  - De,Carvalho NV
AU  - Baiz,PM
AU  - Tay,TE
DO  - 10.1016/j.engfracmech.2014.05.018
EP  - 134
PY  - 2014///
SN  - 0013-7944
SP  - 104
TI  - A floating node method for the modelling of discontinuities in composites
T2  - Engineering Fracture Mechanics
UR  - http://dx.doi.org/10.1016/j.engfracmech.2014.05.018
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000341551700010&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://www.sciencedirect.com/science/article/pii/S0013794414001829?via%3Dihub
VL  - 127
ER  -
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