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Modelling And Stress Analysis Of Lumbar Spine

The lumbar spine modelling and analysis are crucial for prediction of the load impact and body movement in daily life activities. In this research, different load amount and moment are investigated. The analysis focuses on the high stress concentration since this area tends to get fractures. In ord...

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Main Author: Zulkifli, Siti Syazni
Format: Thesis
Language:English
Published: 2015
Subjects:
TJ1-1570 Mechanical engineering and machinery
Online Access:http://eprints.usm.my/41160/1/Siti_Syazni_Binti_Zulkifli_24_Pages.pdf
http://eprints.usm.my/41160/
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spelling my.usm.eprints.41160 http://eprints.usm.my/41160/ Modelling And Stress Analysis Of Lumbar Spine Zulkifli, Siti Syazni TJ1-1570 Mechanical engineering and machinery The lumbar spine modelling and analysis are crucial for prediction of the load impact and body movement in daily life activities. In this research, different load amount and moment are investigated. The analysis focuses on the high stress concentration since this area tends to get fractures. In order to predict the biomechanical response of lumbar vertebra, the three-dimensional finite element model of L1 to L5 included intervertebral disc was constructed by extracting the computed tomography scan data from Malaysian female. Analysis was performed under various loadings such as axial load, flexion, extension, lateral and torsion to determine the stress distribution and deformation on the model. The result shows that Maximum Von Mises Stress is lowest at vertebra L5, which is 1.37 MPa compared to vertebra L1 which is 4.29 MPa. Meanwhile, for the maximum displacement, vertebra L5 also lower compared to vertebra L1 which is 0.31 x 10-5 mm and 1.51 x 10-5mm respectively. The pedicle region is the areas that are subjected to the greatest stresses and which are more likely to be susceptible to degenerative diseases and injuries are identified. The analysis also was performed on the whole lumbar vertebra and the result shows that the Von Mises stress was highest under lateral moment and lowest under torsion moment. Based on the degree of rotation, it shows that the lumbar spine most flexible under flexion moment and less flexible under torsion moment. 2015 Thesis NonPeerReviewed application/pdf en http://eprints.usm.my/41160/1/Siti_Syazni_Binti_Zulkifli_24_Pages.pdf Zulkifli, Siti Syazni (2015) Modelling And Stress Analysis Of Lumbar Spine. Masters thesis, Universiti Sains Malaysia.
institution Universiti Sains Malaysia
building Hamzah Sendut Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Sains Malaysia
content_source USM Institutional Repository
url_provider http://eprints.usm.my/
language English
topic TJ1-1570 Mechanical engineering and machinery
spellingShingle TJ1-1570 Mechanical engineering and machinery
Zulkifli, Siti Syazni
Modelling And Stress Analysis Of Lumbar Spine
description The lumbar spine modelling and analysis are crucial for prediction of the load impact and body movement in daily life activities. In this research, different load amount and moment are investigated. The analysis focuses on the high stress concentration since this area tends to get fractures. In order to predict the biomechanical response of lumbar vertebra, the three-dimensional finite element model of L1 to L5 included intervertebral disc was constructed by extracting the computed tomography scan data from Malaysian female. Analysis was performed under various loadings such as axial load, flexion, extension, lateral and torsion to determine the stress distribution and deformation on the model. The result shows that Maximum Von Mises Stress is lowest at vertebra L5, which is 1.37 MPa compared to vertebra L1 which is 4.29 MPa. Meanwhile, for the maximum displacement, vertebra L5 also lower compared to vertebra L1 which is 0.31 x 10-5 mm and 1.51 x 10-5mm respectively. The pedicle region is the areas that are subjected to the greatest stresses and which are more likely to be susceptible to degenerative diseases and injuries are identified. The analysis also was performed on the whole lumbar vertebra and the result shows that the Von Mises stress was highest under lateral moment and lowest under torsion moment. Based on the degree of rotation, it shows that the lumbar spine most flexible under flexion moment and less flexible under torsion moment.
format Thesis
author Zulkifli, Siti Syazni
author_facet Zulkifli, Siti Syazni
author_sort Zulkifli, Siti Syazni
title Modelling And Stress Analysis Of Lumbar Spine
title_short Modelling And Stress Analysis Of Lumbar Spine
title_full Modelling And Stress Analysis Of Lumbar Spine
title_fullStr Modelling And Stress Analysis Of Lumbar Spine
title_full_unstemmed Modelling And Stress Analysis Of Lumbar Spine
title_sort modelling and stress analysis of lumbar spine
publishDate 2015
url http://eprints.usm.my/41160/1/Siti_Syazni_Binti_Zulkifli_24_Pages.pdf
http://eprints.usm.my/41160/
_version_ 1643710145049395200
score 13.211869

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