Comparison study of different numerical methods on 3-D human thorax finite element models

1992 ◽  
Author(s):  
B. Guan ◽  
D. R. Haynor ◽  
D. E. Blilie ◽  
C. H. Chan ◽  
Y. Kim
Keyword(s):  
Finite Element ◽  
Numerical Methods ◽  
Finite Element Models ◽  
Comparison Study ◽  
Human Thorax

scholarly journals COMPARATIVE ANALYSIS OF THE PARAMETERS OF FINITE-ELEMENT MODELS OF SOILS OBTAINED BY NUMERICAL METHODS

2017 ◽  
pp. 23-31
Author(s):  
Vladimir Ivanovich Matselya ◽  
Igor Nikolaevich Seelev ◽  
Alexey Valentinovich Lekontsev ◽  
Robert Rafaelevich Khafizov ◽  
Pavel Viktorovich Yakovlev ◽  
...  
Keyword(s):  
Finite Element ◽  
Comparative Analysis ◽  
Numerical Methods ◽  
Small Deformation ◽  
Finite Element Models ◽  
Linear Elastic ◽  
Industrial Buildings ◽  
Test Models ◽  
Weak Points ◽  
Plaxis 3D

The popularity of numerical methods for modeling soil bases determines the increased demand for the accuracy of calculations. The choice of a model that meets the requirements of accuracy of calculations and minimization of costs is determined by comparative analysis of common soil models described in scientific literature and used in calculations of sediments and dynamic effects of buildings (finite element linear elastic, elastic, ideal-plastic, Mora - Coulomb with strengthening, elasto-plastic with strengthening at small deformation). The results have been obtained on test models using finite element method in the environment of PLAXIS 3D and SCAD Office programs. In order to compare results obtained, subject to requirements of the current regulatory documents, a comparative analysis of soils was carried out according to the model of Body of rules 22.13330.2011 "Foundations of buildings and structures". The analysis results were used for choosing an optimal model of soil bases of industrial buildings estimated in earthquake-proof design. It should be noted that the strong and weak points identified for each model justify the choice of the best model for each particular case.

scholarly journals Comparison between finite element analysis and rheological models for chip formation

2020 ◽  
Vol 23 (2) ◽  
pp. 255-268
Author(s):  
Olga Liivapuu ◽  
Jüri Olt ◽  
Tanel Tärgla
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Numerical Methods ◽  
Chip Formation ◽  
Cutting Parameters ◽  
Finite Element Models ◽  
Empirical Methods ◽  
Element Analysis ◽  
Rheological Models ◽  
Selection Of

In the process of cutting, often the selection of cutting parameters is done considering empirical methods. This approach is more expensive and does not usually lead to the best solutions. Numerical methods for simulating the chip formation have been under development over the last thirty years. The aim of the present research is to compare models based on rheological properties of metals with 2D Finite Element Models of chip formation process.

scholarly journals Up-to-date mathematical models lines of development of information technologies in the field of numerical methods of structures strength calculations

2018 ◽  
Vol 44 ◽  
pp. 00060
Author(s):  
Vladimir Meleshko
Keyword(s):  
Finite Element ◽  
Numerical Methods ◽  
Mathematical Models ◽  
Information Technologies ◽  
Structural Mechanics ◽  
High Dimensionality ◽  
Finite Element Models ◽  
Systems Of Equations ◽  
Distinctive Features ◽  
Complex Program

In order to carry out reliable calculations of structures adequate to reality, in particular, for taking into account plastic resource, it is necessary to use complex program systems and build finite element models of high dimensionality. This work provides a comparison of different mathematical models, which can be used for numerical analysis. Consideration was given to basic variation principles and methods of calculating structural mechanics. Distinctive features of forming systems of equations of classical methods of structural mechanics and known numerical methods were demonstrated. Possible advantages of methods with respect to accuracy and rate of calculations were revealed. Consideration was given to possible improvements of existing mathematical models in elastoplastic domain. Possible directions of development in the field of engineering methods for calculating strength were proposed.

scholarly journals A Comparison Study of Four Cervical Disk Arthroplasty Devices Using Finite Element Models

2020 ◽  
Author(s):  
Yuvaraj Purushothaman ◽  
Hoon Choi ◽  
Narayan Yoganandan ◽  
Davidson Jebaseelan ◽  
Jamie Baisden ◽  
...  
Keyword(s):  
Finite Element ◽  
Finite Element Models ◽  
Comparison Study ◽  
Cervical Disk
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