A Logarithmic Strain Decomposition for Modeling of Trabecular Bone Subjected to Large Compressive Strains

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F12%3A00200406" target="_blank" >RIV/68407700:21110/12:00200406 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

A Logarithmic Strain Decomposition for Modeling of Trabecular Bone Subjected to Large Compressive Strains

Popis výsledku v původním jazyce

The geometrical nonlinearities may play an important role in the modeling of osteoporotic trabecular bone. The magnitude of geometrically nonlinear effects depends on the bone volume fraction and becomes more important for low-density bone. Development of a fully nonlinear model of trabecular bone (including material as well as geometrical nonlinearity) can be useful for description and exploration of the fracture properties of low-density trabecular bone. In this contribution we will explore an extension of the small-strain model for trabecular bone combining anisotropic elasticity and anisotropic plasticity with isotropic damage, to the large strain range. The extension to the large-strain range is based on the additive decomposition of the logarithmic strain into elastic and plastic parts. An efficient implementation into an object-oriented finite element platform will be presented, the algorithmic aspects will be discussed and application of the model will be illustrated by an exam

Název v anglickém jazyce

A Logarithmic Strain Decomposition for Modeling of Trabecular Bone Subjected to Large Compressive Strains

Popis výsledku anglicky

The geometrical nonlinearities may play an important role in the modeling of osteoporotic trabecular bone. The magnitude of geometrically nonlinear effects depends on the bone volume fraction and becomes more important for low-density bone. Development of a fully nonlinear model of trabecular bone (including material as well as geometrical nonlinearity) can be useful for description and exploration of the fracture properties of low-density trabecular bone. In this contribution we will explore an extension of the small-strain model for trabecular bone combining anisotropic elasticity and anisotropic plasticity with isotropic damage, to the large strain range. The extension to the large-strain range is based on the additive decomposition of the logarithmic strain into elastic and plastic parts. An efficient implementation into an object-oriented finite element platform will be presented, the algorithmic aspects will be discussed and application of the model will be illustrated by an exam

Druh

D - Stať ve sborníku

CEP obor

JJ - Ostatní materiály

OECD FORD obor

—

Projekt

<a href="/cs/project/GAP108%2F11%2F1243" target="_blank" >GAP108/11/1243: Model pro porušení spongiózní kosti s uvážením velkých deformací a anizotropie</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název statě ve sborníku

ECCOMAS 2012 - European Congress on Computational Methods in Applied Sciences and Engineering, e-Book Full Papers

ISBN

978-3-9503537-0-9

ISSN

—

e-ISSN

—

Počet stran výsledku

13

Strana od-do

9197-9209

Název nakladatele

Vienna University of Technology

Místo vydání

Vienna

Místo konání akce

Vienna

Datum konání akce

10. 9. 2012

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—