Imperial College London
Alternate

Dr Soraia Pimenta

Faculty of Engineering, Department of Mechanical Engineering

Reader in Mechanics of Materials and Structures
 
 
 
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Contact

 

+44 (0)20 7594 3784soraia.pimenta Website

 
 
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Location

 

521City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Li:2019:10.1016/j.compstruct.2018.05.128,
author = {Li, Y and Pimenta, S},
doi = {10.1016/j.compstruct.2018.05.128},
journal = {Composite Structures},
pages = {1005--1021},
title = {Development and assessment of modelling strategies to predict failure in tow-based discontinuous composites},
url = {http://dx.doi.org/10.1016/j.compstruct.2018.05.128},
volume = {209},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Tow-based discontinuous composites (TBDCs) are a growing class of materials that combine manufacturability, light-weight, and high performance. This study proposes multi-scale modelling approaches to predict the tensile strength and failure envelopes of tow-based discontinuous composites, by representing the actual composite (with randomly-oriented tows) as an equivalent ply-by-ply laminate. Several modelling approaches are considered for the different scales, including (i) a stochastic bi-linear shear-lag formulation accounting for the random location of tow-ends and matrix cracking, (ii) a novel failure criterion for a discontinuous uni-directional ply accounting for the interaction between tow pull-out and transverse failure, and (iii) a ply-discount method or a maximum strain energy criterion for the final failure of the composite. The model computes full failure envelopes for ply-by-ply laminates equivalent to TBDCs within minutes, and the results show good agreement with experimental data.
AU  - Li,Y
AU  - Pimenta,S
DO  - 10.1016/j.compstruct.2018.05.128
EP  - 1021
PY  - 2019///
SN  - 0263-8223
SP  - 1005
TI  - Development and assessment of modelling strategies to predict failure in tow-based discontinuous composites
T2  - Composite Structures
UR  - http://dx.doi.org/10.1016/j.compstruct.2018.05.128
UR  - https://www.sciencedirect.com/science/article/pii/S0263822317342514?via%3Dihub
UR  - http://hdl.handle.net/10044/1/61379
VL  - 209
ER  -
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