Imperial College London
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ProfessorMariaCharalambides

Faculty of Engineering, Department of Mechanical Engineering

Professor of the Mechanics of Materials
 
 
 
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Contact

 

+44 (0)20 7594 7246m.charalambides Website

 
 
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Location

 

516City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Skamniotis:2020:10.1016/j.eml.2020.100964,
author = {Skamniotis, CG and Charalambides, MN},
doi = {10.1016/j.eml.2020.100964},
journal = {Extreme Mechanics Letters},
pages = {1--17},
title = {Development of computational design tools for characterising and modelling cutting in ultra soft solids},
url = {http://dx.doi.org/10.1016/j.eml.2020.100964},
volume = {40},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Computational modelling of the in vivo mechanical response of various biological materials within the human organism, such as brain tissue, bone, arteries, ingested food, is an increasingly cost-effective design tool for bio-medical, bio-engineering and surgical applications. This study addresses the knowledge gap in simulating deformation-fracture during cutting in continua that lie in the transition between a soft solid and a complex fluid state. Hydrated food is one such system produced naturally after swallowing. We show that a viscoplastic-damage constitutive law calibrated through compression tests on hydrated biscuit particles, can be utilised in Eulerian Finite Element (FE) analysis to predict complex localised deformation-fracture material behaviour during cutting at two length scales with high fidelity. We demonstrate that in such materials a fracture term is not always necessary to predict ultimate separation and that the Eulerian FE analysis is a versatile approach based on which largely different material cutting behaviours can be modelled. Our study provides a platform for understanding and optimising processes involving ultra-soft materials which flow excessively and exhibit weak or strong cutting resistance.
AU  - Skamniotis,CG
AU  - Charalambides,MN
DO  - 10.1016/j.eml.2020.100964
EP  - 17
PY  - 2020///
SN  - 2352-4316
SP  - 1
TI  - Development of computational design tools for characterising and modelling cutting in ultra soft solids
T2  - Extreme Mechanics Letters
UR  - http://dx.doi.org/10.1016/j.eml.2020.100964
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000577470700052&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://www.sciencedirect.com/science/article/pii/S2352431620302042?via%3Dihub
UR  - http://hdl.handle.net/10044/1/85426
VL  - 40
ER  -
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