Imperial College London
Portrait Picture

Dr Andrew Phillips

Faculty of Engineering, Department of Civil and Environmental Engineering

Reader in Structural Biomechanics
 
 
 
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Contact

 

+44 (0)20 7594 6081andrew.phillips Website

 
 
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Assistant

 

Ms Ruth Bello +44 (0)20 7594 6040

 
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Location

 

433Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Zaharie:2019:10.3390/app9163320,
author = {Zaharie, D and Phillips, A},
doi = {10.3390/app9163320},
journal = {Applied Sciences},
pages = {1--18},
title = {A comparative study of continuum and structural modelling approaches to simulate bone adaptation in the pelvic construct},
url = {http://dx.doi.org/10.3390/app9163320},
volume = {9},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - This study presents the development of a number of finite element (FE) models of the pelvis using different continuum and structural modelling approaches. Four FE models were developed using different modelling approaches: continuum isotropic, continuum orthotropic, hybrid isotropic and hybrid orthotropic. The models were subjected to an iterative adaptation process based on the Mechanostat principle. Each model was adapted to a number of common daily living activities (walking, stair ascent, stair descent, sit-to-stand and stand-to-sit) by applying onto it joint and muscle loads derived using a musculoskeletal modelling framework. The resulting models, along with a structural model previously developed by the authors, were compared visually in terms of bone architecture, and their response to a single load case was compared to a continuum FE model derived from computed tomography (CT) imaging data. The main findings of this study were that the continuum orthotropic model was the closest to the CT derived model in terms of load response albeit having less total bone volume, suggesting that the role of material directionality in influencing the maximum orthotropic Young’s modulus should be included in continuum bone adaptation models. In addition, the hybrid models, where trabecular and cortical bone were distinguished, had similar outcomes, suggesting that the approach to modelling trabecular bone is less influential when the cortex is modelled separately.
AU  - Zaharie,D
AU  - Phillips,A
DO  - 10.3390/app9163320
EP  - 18
PY  - 2019///
SN  - 2076-3417
SP  - 1
TI  - A comparative study of continuum and structural modelling approaches to simulate bone adaptation in the pelvic construct
T2  - Applied Sciences
UR  - http://dx.doi.org/10.3390/app9163320
UR  - https://doi.org/10.3390/app9163320
UR  - https://www.mdpi.com/2076-3417/9/16/3320
UR  - http://hdl.handle.net/10044/1/72788
VL  - 9
ER  -
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