Open AccessNonlinear finite element analysis of lumbar spine under mechanical load
Author(s) -
V Poojara,
Reena Trivedi,
Bharat Modi,
Ritesh Kumar Patel
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2070/1/012216
Subject(s) - finite element method , truss , structural engineering , nonlinear system , displacement (psychology) , lumbar spine , stress (linguistics) , materials science , mechanics , anatomy , physics , engineering , surgery , medicine , psychology , linguistics , philosophy , quantum mechanics , psychotherapist
Nonlinear Finite Element Analysis of lumbar spine is carried out using the optimisation software, to determine the effect of accidents on the human spine under mechanical loading. The lower two lumbar section – L4 and L5 of spinal cord is focussed in the present study. A simplified model of the L4-L5 vertebra was prepared. Bone material was taken as nonlinear and disc centre was modelled as hyper elastic. The ligaments are modelled as 1D truss elements. 2 D triangular mesh was generated and converted to 3D tetrahedral mesh. The range of force of 500 N to 1600N and moment of 7500 Nm was given as an input. The relationship of displacement, stress and strain with force is studied. The analysis was carried out and the results obtained depicted that the force varies depending on the impact of accidents. Conclusions are drawn and the relationship at different values of force was obtained.