Computational modal analysis of a composite pelvic bone: convergence and validation studies

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24410%2F19%3A00007241" target="_blank" >RIV/46747885:24410/19:00007241 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.tandfonline.com/doi/pdf/10.1080/10255842.2019.1604949?needAccess=true" target="_blank" >https://www.tandfonline.com/doi/pdf/10.1080/10255842.2019.1604949?needAccess=true</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/10255842.2019.1604949" target="_blank" >10.1080/10255842.2019.1604949</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Computational modal analysis of a composite pelvic bone: convergence and validation studies

Popis výsledku v původním jazyce

The purpose of the present study was to describe the structural density and geometry of the bone, as well as its sensitivity to the resolution of finite element discretisation. The study introduces a novel way to validate biomechanical model of the bone by experimental modal analysis. The structural density and geometry of the model was obtained from a composite bone. A detailed investigation of the weight dependence of the bone on the mesh resolution was performed to obtain the best match with the real weight of the tested bone. The computational model was compared with the experimental results obtained from the modal analysis. The overall changes of the modal properties and bone weight in the model caused by different mesh resolutions and order of approximation were below 10%, despite the bone was modelled with simple isotropic material properties. The experimental modal analysis shows a great potential to be a robust verification tool of computational biomechanical models because it provides boundary conditions–free results. The sensitivity analysis revealed that the linear approximation of the density field is not suitable for the modelling of the modal response of composite bone.

Název v anglickém jazyce

Computational modal analysis of a composite pelvic bone: convergence and validation studies

Popis výsledku anglicky

The purpose of the present study was to describe the structural density and geometry of the bone, as well as its sensitivity to the resolution of finite element discretisation. The study introduces a novel way to validate biomechanical model of the bone by experimental modal analysis. The structural density and geometry of the model was obtained from a composite bone. A detailed investigation of the weight dependence of the bone on the mesh resolution was performed to obtain the best match with the real weight of the tested bone. The computational model was compared with the experimental results obtained from the modal analysis. The overall changes of the modal properties and bone weight in the model caused by different mesh resolutions and order of approximation were below 10%, despite the bone was modelled with simple isotropic material properties. The experimental modal analysis shows a great potential to be a robust verification tool of computational biomechanical models because it provides boundary conditions–free results. The sensitivity analysis revealed that the linear approximation of the density field is not suitable for the modelling of the modal response of composite bone.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

30404 - Biomaterials (as related to medical implants, devices, sensors)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Computer Methods in Biomechanics and Biomedical Engineering

ISSN

1025-5842

e-ISSN

—

Svazek periodika

22

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

916-924

Kód UT WoS článku

000465854600001

EID výsledku v databázi Scopus

2-s2.0-85064643776