scholarly journals Large-area damage prediction system based on finite element method for risk assessment of seismic slope failure in mountains area

2008 ◽  
Vol 45 (3) ◽  
pp. 207-218 ◽  
Author(s):  
Akihiko WAKAI ◽  
Norihiro TANAKA ◽  
Shinro ABE ◽  
Hiroyuki YOSHIMATSU ◽  
Kousei YAMABE ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Risk Assessment ◽  
Finite Element ◽  
Slope Failure ◽  
Prediction System ◽  
Large Area ◽  
Damage Prediction ◽  
Element Method

scholarly journals Stability Charts for Pseudostatic Stability Analysis of 3D Homogeneous Soil Slopes Using Strength Reduction Finite Element Method

2019 ◽  
Vol 2019 ◽  
pp. 1-18 ◽  
Author(s):  
Chaowei Sun ◽  
Junrui Chai ◽  
Bin Ma ◽  
Tao Luo ◽  
Ying Gao ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Stability Analysis ◽  
Slope Failure ◽  
Strength Reduction ◽  
Seismic Load ◽  
Wide Range ◽  
Soil Slopes ◽  
Homogeneous Soil ◽  
Element Method

This paper uses the modified strength reduction finite element method to propose stability charts for pseudostatic stability analysis of three-dimensional (3D) homogeneous soil slopes subjected to seismic excitation. These charts are developed in a wide range of input parameters for purely cohesive slopes and cohesive-frictional slopes, respectively. Effect of the horizontal seismic load is approximately considered using the quasistatic approach. The stability charts allow to determine the factor of safety without any iterative procedure and identify the corresponding critical slope failure mechanism. A slope example is employed to illustrate the application and reliability of these stability charts.

Analysis of slope failure by an explicit nonlinear finite element method

2003 ◽  
Vol 2003.56 (0) ◽  
pp. 277-278
Author(s):  
Taiyou TAKUMA ◽  
Hiroshi OKADA ◽  
Yasuyoshi FUKUI ◽  
Noriyoshi KUMAZAWA
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Slope Failure ◽  
Nonlinear Finite Element ◽  
Nonlinear Finite Element Method ◽  
Element Method

Auxiliary Random Finite Element Method for Risk Assessment of 3-D Slope

Geo-Risk 2017 ◽  
2017 ◽  
Author(s):  
Te Xiao ◽  
Dian-Qing Li ◽  
Zi-Jun Cao ◽  
Siu-Kui Au ◽  
Xiao-Song Tang
Keyword(s):  
Finite Element Method ◽  
Risk Assessment ◽  
Finite Element ◽  
Random Finite Element Method ◽  
Random Finite Element ◽  
Element Method

scholarly journals The LQR Control Active of Smart Plate Based on the Finite Element Method

2017 ◽  
Vol 61 (2) ◽  
pp. 115
Author(s):  
Mohamed Latrache ◽  
Mohamed Nadir Amrane
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Numerical Study ◽  
Piezoelectric Materials ◽  
Fem Analysis ◽  
Piezoelectric Sensor ◽  
Smart Structure ◽  
Large Area ◽  
Area Of Interest ◽  
Element Method

This paper presents a numerical study pertaining to on the active vibration control (AVC) of the 3-D rectangle simply supported plate bonded of the piezoelectric sensor/ actuator pairs. AVC is a large area of interest either in all sections of industry or in research. One way to control the vibration of dynamic systems is by using piezoelectric materials. A finite element method (FEM) analysis is used to model the dynamic behavior of the system. The frequencies of the isotropic pate and a smart structure are verified by the comparison between the analytical calculations and simulation. A LQR controller is designed based on the independent mode space control techniques to stifle the vibration of the system. The change in the sizes of the patches was a clear impact on the control results, and also in the values of the voltage in actuator. The results were established by simulating in ANSYS and MATLAB.

The Effect of Substrate Deformation in UV-Nanoimprint Lithography Using a Large Area Stamp

2007 ◽  
Vol 121-123 ◽  
pp. 649-652
Author(s):  
Ki Don Kim ◽  
Young Suk Sim ◽  
Jun Ho Jeong ◽  
Hyun Kee Sohn ◽  
Eung Sug Lee ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Layer Thickness ◽  
Nanoimprint Lithography ◽  
Residual Layer ◽  
Simplified Model ◽  
Large Area ◽  
Severe Deformation ◽  
Element Method

We investigated the non-uniformity of the residual layer thickness caused by wafer deformation in an experiment that examined different wafer thicknesses using UV-NIL with an element-wise patterned stamp (EPS). Experiments using the EPS were performed on an EVG®620-NIL. Severe deformation of the wafer served as an obstacle to the spread of resin drops, which caused non-uniformity of the residual layer thickness. We also simulated the imprint process using a simplified model and finite element method to analyze the non-uniformity.

Research of Reinforce Plan for No. Zero Frame of TB200 Aircraft and Secondary Damage Prediction

2010 ◽  
Vol 26-28 ◽  
pp. 303-309
Author(s):  
Feng Liu ◽  
Zhong Bo Zhang ◽  
Wen Feng Qin
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Stress State ◽  
Frame Structure ◽  
Original Structure ◽  
Analysis Model ◽  
Element Analysis ◽  
Damage Prediction ◽  
Secondary Damage ◽  
Element Method

The original structure stress state of No. zero frame of TB200 aircraft is analyzed by finite element method. The stress and the reasons of the crack on the frame are determined. The numerical analysis results fit well with the actual damage of the frame, and the finite element analysis model is verified to be reliable. The stress state of the damaged frame structure is analyzed, which shows that the undamaged frame structure must be reinforced. The reinforce plan for the undamaged frame structure is given. The reinforced frame structure is analyzed by finite element method. The stress state and the residual strength of the reinforced frame structure are given. It is showed that the reinforce plan causes an obvious descent of the frame stress. The load is mainly distributed on the reinforcement of the No. zero frame. The residual static strength of the reinforced structure is higher than the original structure. The possible secondary damage position and mode of the reinforced structure are predicted.

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