Effect of Modeling Assumptions in the Plantar Pressure Distribution of the Diabetic Foot Using the p-Version of the Finite Element Method

2004 ◽  
Author(s):  
Ricardo L. Actis ◽  
Liliana B. Ventura ◽  
Barna A. Szabo ◽  
Kirk E. Smith ◽  
Paul K. Commean ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Pressure Distribution ◽  
Research Group ◽  
Diabetic Foot ◽  
Plantar Pressure ◽  
The Finite Element Method ◽  
Human Foot ◽  
Plantar Pressure Distribution ◽  
Element Method

This paper summarizes the modeling work performed by our research group in the last year utilizing the p-version of the finite element method for the simulation of the mechanical behavior of the human foot in regard to the plantar pressure distribution during push-off.

scholarly journals Analysis of pressure distribution in the foot using finite elements

2020 ◽  
Vol 14 (2) ◽  
pp. 197-200
Author(s):  
Carlos Alberto Costa ◽  
Vinicius Victorazzi Lain ◽  
Alexandre Leme Godoy-Santos ◽  
Victor Gonçalvez de Antoni ◽  
Paulo Roberto Linzmaier ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Pressure Distribution ◽  
The Finite Element Method ◽  
Level Of Evidence ◽  
Healthy Human ◽  
Element Analysis ◽  
Human Foot ◽  
Biomechanical Behavior ◽  
Element Method

The objective of this study is to evaluate the applicability of the finite element method to analyze pressure distribution in the healthy human foot. Images of a foot were captured using computed tomography and converted into a three-dimensional model, which was adjusted with the aid of CAD software. The model was imported into Abaqus software for finite element analysis, considering the different regions of the foot. Observations of displacement, stresses, and pressure distribution demonstrated a biomechanical behavior of the foot consistent with that reported in the existing literature, regarding the regions of peak plantar pressure. These findings demonstrate the feasibility of evaluating the physical and mechanical behavior of the human foot using the finite element method, and can serve as a reference for the study and manufacture of orthotic appliances, prosthetic devices, and insoles. Level of Evidence V; Prognostic Studies; Expert Opinion.

Characteristics Research of Aqueduct under FSI Dynamic Response

2013 ◽  
Vol 864-867 ◽  
pp. 2367-2370
Author(s):  
Feng Zhu ◽  
Ai Wu Cao ◽  
Geng Ying
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Dynamic Response ◽  
Pressure Distribution ◽  
Hydrodynamic Pressure ◽  
The Finite Element Method ◽  
Height Range ◽  
The Difference ◽  
Pressure Changes ◽  
Element Method

Maximum distribution of hydrodynamic pressure on the flume sidewall were studied in this paper based on the finite element method. It contains the difference comparison of theoretical and numerical formulas, rules of maximum hydrodynamic pressure distribution under regular and irregular incentives, and hydrodynamic pressure changes with different height of bracket below the aqueduct. Studies show that: In the 30m height range, with the rise of bracket, the hydrodynamic pressure grows linearly.

A Study on the Pressure Distribution along the Powder-Die Interfaces in Powdered Metal Compaction Process

2007 ◽  
Vol 340-341 ◽  
pp. 655-658 ◽  
Author(s):  
H.S. Koo ◽  
V.R. Jayasekera ◽  
K.H. Min ◽  
Jung Min Seo ◽  
Dong Hwan Jang ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Pressure Distribution ◽  
The Finite Element Method ◽  
Geometrical Condition ◽  
Powdered Metal ◽  
Asymmetric Behavior ◽  
Copper Powders ◽  
Moving Punch ◽  
Element Method

This paper is concerned with the pressure distribution along the die-powder interface in long parts. The pressure exerted on the interface at various points on the moving and stationary punch, and also on the sidewall of container was investigated by the finite element method. A plasticity theory describing asymmetric behavior of powdered metals in tension and compression was briefly summarized. The yield criterion applied to the sintered powdered metals had been modified for describing this asymmetric behavior. The material properties of copper powders under compaction were also briefly described for the completeness of the paper. The copper powders were selected as a model material in the present study. The main purpose of this study is to investigate the pressure distribution along the interface of tooling quantitatively by the finite element method so that the results could be applied usefully to the design of tooling, especially container design for powdered metal compaction. Geometrical condition for analysis was confined to the Class II components which is very long parts without steps. It was concluded from the simulation results that the pressure exerted on the moving punch increases sharply near the outer circumference of punch and the pressure on the sidewall decreases at a distance from moving punch to fixed punch. It was also seen from the simulation that the pressure on the stationary punch is not significantly built up and decreases toward outer periphery. These trends were seen amplified with severe frictional conditions imposed on the tooling and powder interface.

scholarly journals Finite element method usage in determining pressure distribution of periodontal tissues on maxillary canine as result of orthodontic force

2011 ◽  
Vol 23 (2) ◽  
Author(s):  
E. Elih ◽  
Tono S. Hambali ◽  
Jono Salim ◽  
Endah Mardiati
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Pressure Distribution ◽  
Maximum Pressure ◽  
The Finite Element Method ◽  
Maxillary Canine ◽  
Cross Sectional ◽  
Orthodontic Force ◽  
Periodontal Tissues ◽  
Element Method

The purpose of this study is to obtain data of pressure distribution on canine periodontal tissues due to the orthodontic force generated by various types of motion using the Finite Element Method. The development of digital technology creates a numerical analysis for orthodontic treatment that can be done by performing 3-D reconstruction by scanning the maxillary canine teeth with a CT scan so that 255 cross-sectional images is obtained. 3 D model is then processed using the Finite Element Method to obtain the pressure distribution on the periodontal tissues caused by tipping movements, bodily, torque, roots, rotation, and extrusion. The analysis used was the analysis of qualitative and quantitative analysis. The results showed that the maximum pressure that occurs in the periodontal tissues caused by a variety of movements ranging from 3.3 x 10-3MPa to 2.9 x 10-2 MPa. This indicates that the force exerted on each movement produces maximum pressure that exceeds capillary pressure was 2 x 10-3 MPa.

Simulation of tuning graphene plasmonic behaviors by ferroelectric domains for self-driven infrared photodetector applications

Nanoscale ◽  
2019 ◽  
Vol 11 (43) ◽  
pp. 20868-20875 ◽  
Author(s):  
Junxiong Guo ◽  
Yu Liu ◽  
Yuan Lin ◽  
Yu Tian ◽  
Jinxing Zhang ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Interfacial Effect ◽  
Infrared Photodetector ◽  
The Finite Element Method ◽  
Ferroelectric Domains ◽  
Element Method

We propose a graphene plasmonic infrared photodetector tuned by ferroelectric domains and investigate the interfacial effect using the finite element method.

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