Effects of Erodibility on Rill Erosion Processes: A Model Study with Finite Element Method

2007 ◽  
Author(s):  
L J ◽  
Yan ◽  
T W Lei ◽  
Q W Zhang ◽  
L Q Qu
2015 ◽  
Vol 3 (1) ◽  
pp. 28-41 ◽  
Author(s):  
Lijuan Yan ◽  
Tingwu Lei ◽  
Jing Zhang ◽  
Qingwen Zhang ◽  
Liqin Qu

2012 ◽  
Vol 193-194 ◽  
pp. 569-572
Author(s):  
Wei Xu ◽  
Shan Qiang Li ◽  
Xuan Cang Wang ◽  
Rui Min Han

This paper introduce the innovative application of finite element method in bridge-deck pavement on curved slope. Based upon Xi’an-Hanzhong Expressway in Qinling Mountains, the developed combination of FE models, including the overall and sub-model, study loading response of bridge-deck pavement on curved slope, and relate the mechanical analysis to structural parameters.


2021 ◽  
Vol 1 (2) ◽  
pp. 1-9
Author(s):  
Mohd. Imran Khan ◽  
◽  
Dr. Ahmad Ali Khan ◽  
Dr. Shalini Yadav ◽  
◽  
...  

In the present work, analysis of concrete pavements using ANSYS software has been attempted. ANSYS is a finite element method-based software. The concrete slab has been modeled with solid 45 brick element and spring elements for soil. Analysis was carried out for a wide range of load and slab soil combination. The soil as “Winkler type” represented by elastic springs and their stiffness was derived from modulus of sub-grade reaction. The influence of any particular base or sub base on edge stresses was not studied here. The model will be then subjected to number of varying input parameters like the change in the thickness of pavement slab, sub-grade material to winkler foundation, modulus of elasticity by adding metal chips in different percentage like 10%, 20%, 30% and also intensity of loads. It is aimed to compare the stresses of the model study with classical approach of Westergaards and IRC 58- 2002 method. Westergaards equation under estimate edge wheel load stresses when compared with those obtained from ANSYS. For generating the charts, edge loading condition was considered which is critical case for wheel load stresses. Also, it was aimed to compare the results with those given by IRC 58 – 2002 design charts. Design charts were developed in thesis work yield the same value of pavement thickness as that of IRC 58 – 2002 method.


Author(s):  
Mohd. Imran Khan ◽  
◽  
Dr. Ahmad Ali Khan ◽  

In the present work, analysis of concrete pavements using ANSYS software has been attempted. ANSYS is a finite element method-based software. The concrete slab has been modeled with solid 45 brick element and spring elements for soil. Analysis was carried out for a wide range of load and slab soil combination. The soil as “Winkler type” represented by elastic springs and their stiffness was derived from modulus of sub-grade reaction. The influence of any particular base or sub base on edge stresses was not studied here. The model will be then subjected to number of varying input parameters like the change in the thickness of pavement slab, sub-grade material to winkler foundation, modulus of elasticity by adding metal chips in different percentage like 10%, 20%, 30% and also intensity of loads. It is aimed to compare the stresses of the model study with classical approach of Westergaards and IRC 58- 2002 method. Westergaards equation under estimate edge wheel load stresses when compared with those obtained from ANSYS. For generating the charts, edge loading condition was considered which is critical case for wheel load stresses. Also, it was aimed to compare the results with those given by IRC 58 – 2002 design charts. Design charts were developed in thesis work yield the same value of pavement thickness as that of IRC 58 – 2002 method.


Nanoscale ◽  
2019 ◽  
Vol 11 (43) ◽  
pp. 20868-20875 ◽  
Author(s):  
Junxiong Guo ◽  
Yu Liu ◽  
Yuan Lin ◽  
Yu Tian ◽  
Jinxing Zhang ◽  
...  

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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