Geometry strongly influences the response of numerical models of the lumbar spine—A probabilistic finite element analysis

2012 ◽  
Vol 45 (8) ◽  
pp. 1414-1423 ◽  
Author(s):  
Frank Niemeyer ◽  
Hans-Joachim Wilke ◽  
Hendrik Schmidt
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Lumbar Spine ◽  
Numerical Models ◽  
Element Analysis

scholarly journals Biomechanical comparison of lumbar spine with or without spina bifida occulta. A finite element analysis

Spinal Cord ◽  
2005 ◽  
Vol 44 (7) ◽  
pp. 440-444 ◽  
Author(s):  
K Sairyo ◽  
V K Goel ◽  
S Vadapalli ◽  
S L Vishnubhotla ◽  
A Biyani ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Lumbar Spine ◽  
Spina Bifida ◽  
Spina Bifida Occulta ◽  
Element Analysis ◽  
Biomechanical Comparison

scholarly journals Finite element analysis of dovetail joint made with the use of CNC technology

2010 ◽  
Vol 58 (5) ◽  
pp. 321-328 ◽  
Author(s):  
Václav Sebera ◽  
Milan Šimek
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Numerical Models ◽  
Experimental Testing ◽  
Joint Stiffness ◽  
Bending Moment ◽  
Parametric Models ◽  
Cnc Machine ◽  
Element Analysis ◽  
Bending Load

The objective of the paper is the parametrization and the finite element analysis of mechanical pro­per­ties of a through dovetail joint made with the use of a specific procedure by a 3-axis CNC machine. This corner joint was used for the simulation of the bending load of the joint in the angle plane – by compression, i.e. by pressing the joint together. The deformation fields, the stress distribution, the stiffness and the bending moment of the joints were evaluated. The finite element system ANSYS was used to create two parametric numerical models of the joint. The first one represents an ideal­ly stiff joint – both joint parts have been glued together. The second model includes the contact between the joined parts. This numerical model was used to monitor the response of the joint stiffness to the change of the static friction coefficient. The results of both models were compared both with each other and with similar analyses conducted within the research into ready-to-assemble furniture joints. The results can be employed in the designing of more complex furniture products with higher demands concerning stiffness characteristics, such as furniture for sitting. However, this assumption depends on the correction of the created parametric models by experimental testing.

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