Numerical elastoplastic analysis of trabeculae in lumbar vertebral body

• Autorzy: Maknickas A. , Alekna V. , Ardatov O. , Kizilova N. , Tamulaitiene M. , Kacianauskas R.
• Języki publikacji: PL EN

Abstrakty

EN

This paper presents a numerical modelling of lumbar vertebrae L1 by employing the finite element method. The three-dimensional model of vertebral body is derived by processing CT data and DICOM format files. The model includes cortical shell, trabecular bone and posterior elements. The formation of trabecular structure was performed by script-controlled ellipsoidal cut-outs. In order to define the nonlinear relationship between the stress and the strain, the Ramberg-Osgood equation was applied. Therefore, the von Mises stress was assumed to characterise the stressed state of bone tissue due to 1 and 7 MPa compression load. According to specific difficulties for “in vitro” and “in vivo” investigation methods, this “in silico” technique may provide new insight for further understanding of the trabecular bone behaviour in terms of plastic deformation.

Słowa kluczowe

EN

lumbar vertebra; finite element method; elastoplasticity; trabeculae

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Engineering Transactions
• Rocznik: 2017
• Tom: Vol. 65, iss. 1
• Strony: 83--88
• Opis fizyczny: Bibliogr. 14 poz., rys., tab., wykr.

Twórcy

autor

Maknickas A.

• Institute of Mechanics, Faculty of Mechanics, Vilnius Gediminas Technical University J. Basanaviˇciaus str. 28, 03224 Vilnius, Lithuania

autor

Alekna V.

• Faculty of Medicine, Vilnius University M. K. Ciurlionio str. 21, Vilnius 03101, Lithuania

autor

Ardatov O.

• Department of Biomechanics, Faculty of Mechanics Vilnius Gediminas Technical University J. Basanaviˇciaus str. 28, 03224 Vilnius, Lithuania

autor

Kizilova N.

• Institute of Mechanics, Faculty of Mechanics, Vilnius Gediminas Technical University J. Basanaviˇciaus str. 28, 03224 Vilnius, Lithuania e-mail: [e-mail]
• Institute of Aeronautics and Applied Mechanics, Warsaw University of Technology Nowowiejska 24, 00-665 Warsaw, Poland

autor

Tamulaitiene M.

• Faculty of Medicine, Vilnius University M. K. Ciurlionio str. 21, Vilnius 03101, Lithuania

autor

Kacianauskas R.

• Institute of Mechanics, Faculty of Mechanics, Vilnius Gediminas Technical University J. Basanaviˇciaus str. 28, 03224 Vilnius, Lithuania

Bibliografia

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).