Finite Element Analysis of Vertical Stress's Effect on Seismic Performance of Autoclaved Aerated Concrete Block Masonry Walls

2011 ◽  
Vol 368-373 ◽  
pp. 1010-1013
Author(s):  
Hui Ge Wu ◽  
Jun Zhao ◽  
Jie Gu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Seismic Performance ◽  
Load Capacity ◽  
Concrete Block ◽  
Vertical Stress ◽  
Element Analysis ◽  
Finite Element Software ◽  
Autoclaved Aerated Concrete ◽  
Aerated Concrete

Non-linear analysis of autoclaved aerated concrete (AAC) block masonry composite wall with reinforced concrete (RC) core columns has been conducted using finite element software ABAQUS. First, the numerical results from finite element analysis were verified with laboratory results of full-scale AAC masonry wall specimens. Effects of vertical stress on seismic performance were investigated. The analysis indicates that lateral load capacity of the wall is affected by the openings greatly and increased with the increase of vertical stress. The effect of vertical stress on the wall without openings is more obvious than that with openings.

Influence of the Opening’s Position on Seismic Performance of Autoclaved Aerated Concrete Composite Wall with Core Columns

2012 ◽  
Vol 446-449 ◽  
pp. 767-770
Author(s):  
Hui Ge Wu ◽  
Ji Hua Chen ◽  
Jie Gu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Seismic Performance ◽  
Load Capacity ◽  
Ultimate Load Capacity ◽  
Element Analysis ◽  
Finite Element Software ◽  
Autoclaved Aerated Concrete ◽  
Composite Wall ◽  
Aerated Concrete

To study the seismic performance of autoclaved aerated concrete (AAC) block masonry composite wall with reinforced concrete (RC) columns, a non-linear finite element analysis has been carried out for the walls with openings using the finite element software ABAQUS. First results of finite element analysis were verified with experiment results of full-scale specimen. And then the effect of the opening’s position on seismic performance was studied with finite element analysis. The result indicates that the ultimate load capacity and ultimate displacement are both increased with the upward and outward movement of the openings.

Finite Element Analysis of Horizontal Reinforcement Ratio's Effect on Seismic Performance of Autoclaved Aerated Concrete Block Masonry

2011 ◽  
Vol 413 ◽  
pp. 326-330
Author(s):  
Hui Ge Wu ◽  
Hui Lai Luo ◽  
Jie Gu
Keyword(s):  
Finite Element ◽  
Bearing Capacity ◽  
Seismic Performance ◽  
Concrete Block ◽  
Reinforcement Ratio ◽  
Element Analysis ◽  
Finite Element Software ◽  
Autoclaved Aerated Concrete ◽  
Shearing Strength ◽  
Aerated Concrete

Non-linear analysis of autoclaved aerated concrete (AAC) block masonry composite wall with column has been conducted using finite element software ABAQUS. First, the finite element results were verified with laboratory results of full-scale specimens. Effects of horizontal reinforcement ratio on seismic performance were investigated. The analysis indicates that shearing strength of the wall is affected by the openings greatly. Seismic performance is improved with the increase of horizontal reinforcement ratio. The effect of vertical stress on wall without openings is more than that on wall with openings. Bearing capacity of walls without openings has a linear relationship with the horizontal reinforcement ratio. And bearing capacity of walls with openings is related to the place where the reinforcements are installed as well as the horizontal reinforcement ratio.

Effect of Door Opening’s Size and Position on Seismic Performance of Autoclaved Aerated Concrete Block Composite Walls

2012 ◽  
Vol 531 ◽  
pp. 539-542
Author(s):  
Xiu Ling Cao ◽  
Hui Ge Wu ◽  
Xi Zhen Wang ◽  
Yan Zhao
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Seismic Performance ◽  
Concrete Block ◽  
Element Analysis ◽  
Autoclaved Aerated Concrete ◽  
Composite Wall ◽  
Aerated Concrete ◽  
Composite Walls ◽  
Good Agreement

Finite element analysis has been performed with software ABAQUS in order to study the effect of door opening’s size and position on seismic performance of autoclaved aerated concrete block composite walls. On the basis of good agreement between finite element results and experimental results, the effect of door opening’s size and position on seismic performance of autoclaved aerated concrete block composite walls has been studied using finite element analysis. This study indicates that with the increase in the door width, the decrease in the wall’s bearing capacity is proportional to the decrease in the wall’s net area; and the change of door’s position has less effect on seismic performance of the composite wall.

Effect of Vertical Stress on Seismic Performance of Autoclaved Aerated Concrete Block Composite Walls with a Door Opening

2012 ◽  
Vol 531 ◽  
pp. 634-637
Author(s):  
Hui Ge Wu ◽  
Xiu Ling Cao ◽  
Jie Gu ◽  
Yan Zhao
Keyword(s):  
Finite Element ◽  
Seismic Performance ◽  
Ultimate Load ◽  
Vertical Stress ◽  
Element Analysis ◽  
Door Opening ◽  
Finite Element Software ◽  
Autoclaved Aerated Concrete ◽  
Aerated Concrete ◽  
Composite Walls

Non-linear analysis of autoclaved aerated concrete (AAC) block masonry composite walls with a door opening was conducted with finite element software ABAQUS in order to study its seismic performance. The finite element results were firstly verified with laboratory results and then the effects of vertical stress on seismic performance of the wall was investigated using finite element analysis. This study indicates that seismic performance can be improved with the increase of vertical stress; however, the effect of vertical stress on ultimate load is less than that on the displacement under ultimate load.

Finite Element Analysis of Main Stand of Ф140 Pipe Rolling Mill and Split Casting

2013 ◽  
Vol 690-693 ◽  
pp. 2327-2330
Author(s):  
Ming Bo Han ◽  
Li Fei Sun
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Rolling Mill ◽  
Analysis Model ◽  
Element Analysis ◽  
Pipe Rolling ◽  
Full Load ◽  
Finite Element Software ◽  
Theoretical Position ◽  
Technical Requirements

By using finite element software, the paper establishes the main stand analysis model of the Ф140 pipe rolling mill and provides the model analysis of main stand in cases of full load. Verify the design of main stand fully comply with the technical requirements .In this paper, it provides the theoretical position of split casting and welding method using electric slag welding.

Estimation of Spring-Back of Single Torus Inner Vessel Sector by Finite Element Analysis

2016 ◽  
Vol 852 ◽  
pp. 588-594
Author(s):  
Gagan Gupta ◽  
V. Balasubramaniyan
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Technology Development ◽  
Cold Pool ◽  
Spring Back ◽  
Element Analysis ◽  
Finite Element Software ◽  
Reactor Assembly ◽  
Design Requirements ◽  
Inner Vessel

Inner vessel in reactor assembly of sodium cooled fast reactor separates hot and cold pool sodium. The shape of inner vessel is optimized with reduced upper & lower shell diameters and toroidal redan for future Fast Breeder Reactor (FBR). This results in higher buckling strength and reduced thickness and hence reduced weight. To achieve the intricate toroidal shape with specified dimensional tolerances, a comprehensive technology development exercise was carried out successfully for the manufacture of inner vessel 30° sector. The achieved profile of the redan meets the specified dimensions and other design requirements. Spring-back observed in the sector was small. To verify the developmental exercise results, a finite element analysis (FEA) of forming of inner vessel sector was performed on finite element software ABAQUS. In this paper, FEA results and spring back are discussed. Spring back assessed is maximum at the center and relatively lower towards the edges for the redan with the chosen radius of 5980 mm.

Stochastic Methods Applied to Structural Mechanics

2018 ◽  
pp. 199-220
Author(s):  
Siham Ouhimmou
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Global Optimization ◽  
Transformation Method ◽  
Stochastic Methods ◽  
Element Analysis ◽  
Local Method ◽  
Structural Problem ◽  
Finite Element Software ◽  
The Finite Element Analysis

Uncertainty modelling with random variables motivates the adoption of advanced PTM for reliability analysis to solve problems of mechanical systems. Probabilistic transformation method (PTM) is readily applicable when the function between the input and the output of the system is explicit. When these functions are implicit, a technique is proposed that combines finite element analysis (FEA) and probabilistic transformation method (PTM) that is based on the numerical simulations of the finite element analysis (FEA) and the probabilistic transformation method (PTM) using an interface between finite element software and Matlab. Structure problems are treated with the proposed technique, and the obtained results are compared to those obtained by the reference Monte Carlo method. A second aim of this work is to develop an algorithm of global optimization using the local method SQP. The proposed approach MSQP is tested on test functions comparing with other methods, and it is used to resolve a structural problem under reliability constraints.

Investigation of stiffness of small wind turbine blade based on vibration analysis technique

2019 ◽  
Vol 44 (1) ◽  
pp. 49-59
Author(s):  
Nilesh Chandgude ◽  
Nitin Gadhave ◽  
Ganesh Taware ◽  
Nitin Patil
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Wind Turbine ◽  
Natural Frequency ◽  
Vibration Analysis ◽  
Natural Frequencies ◽  
Mode Shapes ◽  
Element Analysis ◽  
Finite Element Software ◽  
Small Wind Turbine

In this article, three small wind turbine blades of different materials were manufactured. Finite element analysis was carried out using finite element software ANSYS 14.5 on modeled blades of National Advisory Committee for Aeronautics 4412 airfoil profile. From finite element analysis, first, two flap-wise natural frequencies and mode shapes of three different blades are obtained. Experimental vibration analysis of manufactured blades was carried out using fast Fourier transform analyzer to find the first two flap-wise natural frequencies. Finally, the results obtained from the finite element analysis and experimental test of three blades are compared. Based on vibration analysis, we found that the natural frequency of glass fiber reinforced plastic blade reinforced with aluminum sheet metal (small) strips increases compared with the remaining blades. An increase in the natural frequency indicates an increase in the stiffness of blade.

Finite Element Analysis of the Shell of GIS Busbar Tube

2014 ◽  
Vol 889-890 ◽  
pp. 1406-1409 ◽  
Author(s):  
Ming Jian Jian ◽  
Guang Cheng Zhang ◽  
Du Qing Zhang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Concentration ◽  
Internal Pressure ◽  
Gas Pressure ◽  
Thickness Direction ◽  
Element Analysis ◽  
Finite Element Software ◽  
Concentration Degree ◽  
Inside Out

By finite element software ANSYS a model of GIS busbar tube was established for investigating the effect of the gas pressure on the shell. The results shows that the stress concentration degree is higher on the shoulder between the main tube and the branch pipes under the internal pressure and the gravity, and the highest value is 44.92MPa which is far lower than the admissible stress. Stress changed along the thickness direction, and its value decreased gradually from the inside out. The distributions of the strain and deformation are similar to that of the stress.

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