A Study of the Active Isolation of Traffic Vibrations using a Coupled and Infinite Element Model

2009 ◽  
Author(s):  
D.V. Jones ◽  
O. Laghrouche ◽  
D. Le Houedec
Keyword(s):  
Element Model ◽  
Infinite Element ◽  
Active Isolation

Finite-Infinite Element Dynamic Analysis of Pile-Soil-Structure System Considering the Change of Groundwater Level

2011 ◽  
Vol 250-253 ◽  
pp. 2291-2295
Author(s):  
Wei Hu ◽  
Guang Fan Li ◽  
Juan Du
Keyword(s):  
Dynamic Characteristics ◽  
Groundwater Level ◽  
Soil Structure ◽  
Horizontal Displacement ◽  
Element Model ◽  
Geological Condition ◽  
Shearing Stress ◽  
Structural Dynamic ◽  
Structure System ◽  
Infinite Element

The rise of groundwater level can reduce soil’s effective stress and destroy it’s structure. As a result, the dynamic characteristics of pile-soil-structure system will be changed remarkably. In this paper, a structural dynamic model was used for saturated loess, and the finite-infinite element model of pile-soil-structure system was established to study the groundwater level’s influence on the system’s dynamic characteristics, which included the distributions of pile section’s shearing stress, horizontal displacement and acceleration. The results indicated that, the height of groundwater level did not change the distribution shapes of shearing stress, horizontal acceleration, but had effect on their values. To the top section’s shearing stress and horizontal displacement, there almost had a same dividing groundwater level. When groundwater level was higher than that one, the shearing stress and horizontal displacement were increasing with the rising of groundwater level, but the regulations were just opposite when groundwater level under that height. The study also shown that, to a determinate geological condition and pile foundation, there has a dividing groundwater level, and which is also the most secure level to the pile-soil-structure system. The conclusion can give theoretic instruction for the safety evaluation of pile-soil-structure system around water area.

A Finite Element Model for the Design of Local Skin Flaps

1986 ◽  
Vol 19 (4) ◽  
pp. 807-824
Author(s):  
Wayne F. Larrabee ◽  
J.A. Galt
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Element Model ◽  
Skin Flaps ◽  
Local Skin

Mechanical properties of FeAlSi powders prepared by mechanical alloying from different initial feedstock materials

2019 ◽  
Vol 107 (2) ◽  
pp. 207 ◽  
Author(s):  
Jaroslav Čech ◽  
Petr Haušild ◽  
Miroslav Karlík ◽  
Veronika Kadlecová ◽  
Jiří Čapek ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Mechanical Alloying ◽  
Young’S Modulus ◽  
Milling Time ◽  
Young's Modulus ◽  
Element Model ◽  
X Ray Diffraction ◽  
X Ray ◽  
Powder Particles ◽  
Complete Homogenization

FeAl20Si20 (wt.%) powders prepared by mechanical alloying from different initial feedstock materials (Fe, Al, Si, FeAl27) were investigated in this study. Scanning electron microscopy, X-ray diffraction and nanoindentation techniques were used to analyze microstructure, phase composition and mechanical properties (hardness and Young’s modulus). Finite element model was developed to account for the decrease in measured values of mechanical properties of powder particles with increasing penetration depth caused by surrounding soft resin used for embedding powder particles. Progressive homogenization of the powders’ microstructure and an increase of hardness and Young’s modulus with milling time were observed and the time for complete homogenization was estimated.

New Finite Volume–Multiscale Finite-Element Model for Solving Solute Transport Problems in Porous Media

2021 ◽  
Vol 26 (3) ◽  
pp. 04021002
Author(s):  
Yifan Xie ◽  
Zhenze Xie ◽  
Jichun Wu ◽  
Yong Chang ◽  
Chunhong Xie ◽  
...  
Keyword(s):  
Finite Element ◽  
Porous Media ◽  
Finite Element Model ◽  
Solute Transport ◽  
Finite Volume ◽  
Element Model ◽  
Multiscale Finite Element ◽  
Transport Problems
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