scholarly journals Multiscale smeared finite element model for mass transport in biological tissue: From blood vessels to cells and cellular organelles

2018 ◽  
Vol 99 ◽  
pp. 7-23 ◽  
Author(s):  
M. Kojic ◽  
M. Milosevic ◽  
V. Simic ◽  
E.J. Koay ◽  
N. Kojic ◽  
...  
Keyword(s):  
Finite Element ◽  
Mass Transport ◽  
Finite Element Model ◽  
Blood Vessels ◽  
Biological Tissue ◽  
Element Model ◽  
Cellular Organelles

A Finite Element Model for Oven Aged Tires

2005 ◽  
Vol 33 (2) ◽  
pp. 103-119 ◽  
Author(s):  
K. R. J. Ellwood ◽  
J. Baldwin ◽  
D. R. Bauer
Keyword(s):  
Finite Element ◽  
Kinetic Model ◽  
Mass Transport ◽  
Finite Element Model ◽  
Transport Properties ◽  
Oxygen Content ◽  
Crosslink Density ◽  
Accelerated Aging ◽  
Element Model ◽  
Derived Data

Abstract A finite element kinetic model has been developed to interpret issues related to accelerated aging of tires. The model is based on the Basic Autoxidation Scheme and incorporates mass transport limitations related to diffusion of oxygen into the layered elastomer system. The effect of aging on transport properties, such as diffusivity, due to changes in crosslink density is also considered in the model. The extent of oxidation is calculated at different locations within the tire as a function of time, temperature, and inflation media. The extent of oxidation predicted by the model is compared to experimentally derived data such as oxygen content, crosslink density, elongation-to-break, and modulus variation.

Finite Element Simulation of Tire-Rim Interface

1989 ◽  
Vol 17 (4) ◽  
pp. 305-325 ◽  
Author(s):  
N. T. Tseng ◽  
R. G. Pelle ◽  
J. P. Chang
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Finite Element Simulation ◽  
Contact Pressure ◽  
Element Model ◽  
Experimental Measurements ◽  
Inflation Pressure ◽  
Interference Fit ◽  
Element Simulation ◽  
Rubber Composite

Abstract A finite element model was developed to simulate the tire-rim interface. Elastomers were modeled by nonlinear incompressible elements, whereas plies were simulated by cord-rubber composite elements. Gap elements were used to simulate the opening between tire and rim at zero inflation pressure. This opening closed when the inflation pressure was increased gradually. The predicted distribution of contact pressure at the tire-rim interface agreed very well with the available experimental measurements. Several variations of the tire-rim interference fit were analyzed.

Torsional Analysis of a Steel Cord-Rubber Tire Belt Structure

1996 ◽  
Vol 24 (4) ◽  
pp. 339-348 ◽  
Author(s):  
R. M. V. Pidaparti
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Composite Structures ◽  
Three Dimensional ◽  
Element Model ◽  
Torsional Stiffness ◽  
Element Analysis ◽  
Rubber Belt ◽  
Steel Cord ◽  
Torsional Analysis

Abstract A three-dimensional (3D) beam finite element model was developed to investigate the torsional stiffness of a twisted steel-reinforced cord-rubber belt structure. The present 3D beam element takes into account the coupled extension, bending, and twisting deformations characteristic of the complex behavior of cord-rubber composite structures. The extension-twisting coupling due to the twisted nature of the cords was also considered in the finite element model. The results of torsional stiffness obtained from the finite element analysis for twisted cords and the two-ply steel cord-rubber belt structure are compared to the experimental data and other alternate solutions available in the literature. The effects of cord orientation, anisotropy, and rubber core surrounding the twisted cords on the torsional stiffness properties are presented and discussed.

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