Voxel Models as Input for Heat Transfer Simulations Based on X-ray Microtomography Images of Random Fiber Reinforced Composites

2018 ◽  
Vol 1 (1) ◽  
pp. 114-119
Author(s):  
Steven K. Latré ◽  
Ilya Straumit ◽  
Frederik Desplentere ◽  
Stepan V. Lomov
Keyword(s):  
Finite Element ◽  
Three Dimensional ◽  
Element Model ◽  
Simulation Software ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fibrous Materials ◽  
Fiber Reinforced ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element

This paper proposes a method for the creation of a three-dimensional finite element model representing fiber reinforced insulation materials for the simulation software Siemens NX. VoxTex software, a tool for quantification of µCT images of fibrous materials, is used for the transformation of microtomography images of random fiber reinforced composites into finite element models. The paper describes the numerical tools used for the image quantification and the conversion and illustrates them on several thermal simulations of fiber reinforced insulation blankets filled with low thermal conductive fillers. The experimental measurements validate the prediction of the thermal conductivity.

scholarly journals Modeling Procedures for Estimation of Extensional Stiffness of Knitted Fabric Reinforced Composites

1997 ◽  
Author(s):  
S. Ramakrishna ◽  
S. K. Lim ◽  
S. H. Teoh
Keyword(s):  
Finite Element ◽  
Three Dimensional ◽  
Element Model ◽  
Knitted Fabric ◽  
Reinforced Composites ◽  
Element Analysis ◽  
Shell Elements ◽  
Dimensional Finite Element ◽  
Experimental Values ◽  
Three Dimensional Finite Element

This paper presents effective extensional stiffness of plain-weft knitted fabric reinforced composites obtained from finite element analysis and analytical calculations. For micro-mechanical analyses, a unit cell, enclosing the characteristic periodic repeat pattern in the knitted fabric, is isolated and modeled. Psuedo three-dimensional finite element model is constructed using laminated shell elements. Composite extensional stiffness is estimated for plane-stress and plane-strain conditions. Further, stiffness and compliance averaging methods have been used to determine the upper and lower limits of composite stiffness. The models are explicitly based on the properties of fiber and matrix materials and orientation of yarns. Results obtained from the models are compared with experimental values.

Finite Element Simulation of Titanium Alloy Turning Process

2013 ◽  
Vol 391 ◽  
pp. 14-17 ◽  
Author(s):  
Cheng Jun Yin ◽  
Qing Chun Zheng ◽  
Ya Hui Hu
Keyword(s):  
Finite Element ◽  
Titanium Alloy ◽  
Three Dimensional ◽  
Cutting Temperature ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Element Model ◽  
Simulation Software ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element

In this paper, three-dimensional finite element model of titanium alloy TC4 was established by using three-dimensional finite simulation software-Deform.Change rule of cutting force and cutting temperature can be obtained in different cutting parameters including cutting speed, feed rate and cutting depth.

Finite Element Analysis of Nonuniformity of Tires with Imperfections5

2007 ◽  
Vol 35 (3) ◽  
pp. 226-238 ◽  
Author(s):  
K. M. Jeong ◽  
K. W. Kim ◽  
H. G. Beom ◽  
J. U. Park
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Three Dimensional ◽  
Element Model ◽  
Radial Force ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Dimensional Finite Element ◽  
Force Variation ◽  
Three Dimensional Finite Element

Abstract The effects of variations in stiffness and geometry on the nonuniformity of tires are investigated by using the finite element analysis. In order to evaluate tire uniformity, a three-dimensional finite element model of the tire with imperfections is developed. This paper considers how imperfections, such as variations in stiffness or geometry and run-out, contribute to detrimental effects on tire nonuniformity. It is found that the radial force variation of a tire with imperfections depends strongly on the geometrical variations of the tire.

Mechanical Simulation of Knee Movement in Basketball Shooting

2013 ◽  
Vol 336-338 ◽  
pp. 760-763
Author(s):  
Hui Yue
Keyword(s):  
Finite Element ◽  
Cruciate Ligament ◽  
Three Dimensional ◽  
Element Model ◽  
Basketball Player ◽  
Knee Movement ◽  
Dimensional Finite Element ◽  
Anterior Cruciate ◽  
Three Dimensional Finite Element

A short explanation of the finite element method as a powerful tool for mathematical modeling is provided, and an application using constitutive modeling of the behavior of ligaments is introduced. Few possible explanations of the role of water in ligament function are extracted from two dimensional finite element models of a classical ligament. The modeling is extended to a three dimensional finite element model for the human anterior cruciate ligament. Simulation of ligament force in pitching motion of basketball player is studied in this paper.

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