An over-nonlocal implicit gradient-enhanced damage-plastic model for trabecular bone under large compressive strains
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F15%3A00230623" target="_blank" >RIV/68407700:21110/15:00230623 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1002/cnm.2728" target="_blank" >http://dx.doi.org/10.1002/cnm.2728</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/cnm.2728" target="_blank" >10.1002/cnm.2728</a>
Alternative languages
Result language
angličtina
Original language name
An over-nonlocal implicit gradient-enhanced damage-plastic model for trabecular bone under large compressive strains
Original language description
Purpose: Investigation of trabecular bone strength and compaction is important for fracture risk prediction. At 1?2% compressive strain, trabecular bone undergoes strain softening, which may lead to numerical instabilities and mesh dependency in classical local damage-plastic models. The aim of this work is to improve our continuum damage-plastic model of bone by reducing the influence of finite element mesh size under large compression. Methodology: This spurious numerical phenomenon may be circumvented by incorporating the nonlocal effect of cumulated plastic strain into the constitutive law. To this end, an over-nonlocal implicit gradient model of bone is developed and implemented into the finite element software ABAQUS using a user element subroutine. The ability of the model to detect the regions of bone failure is tested against experimental stepwise loading data of 16 human trabecular bone biopsies. Findings: The numerical outcomes of the nonlocal model revealed reduction of fin
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JJ - Other materials
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GAP108%2F11%2F1243" target="_blank" >GAP108/11/1243: Large-Strain Anisotropic Model for Failure of Trabecular Bone</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International Journal for Numerical Methods in Biomedical Engineering
ISSN
2040-7939
e-ISSN
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Volume of the periodical
31
Issue of the periodical within the volume
November
Country of publishing house
US - UNITED STATES
Number of pages
32
Pages from-to
1-32
UT code for WoS article
000363583800001
EID of the result in the Scopus database
2-s2.0-84946480444