Numerical Simulation for Stress Field Due to Corrosion of Rebar in Concrete Structure

2011 ◽  
Vol 255-260 ◽  
pp. 137-141
Author(s):  
Zhen Xiao ◽  
Jin Wu
Keyword(s):  
Numerical Simulation ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Concrete Structure ◽  
Volume Expansion ◽  
Theory Of Elasticity ◽  
Concrete Cover ◽  
Analysis Software ◽  
Element Analysis ◽  
Distribution Of Stress

Due to the volume expansion of corroded rebar products, the cracking of the concrete cover would occur, and has a serious impact on the durability of the concrete structure. In this paper, a numerical model was established for the simulation of the corrosion of rebar in concrete structures with the aid of finite element analysis software. The distribution of stress in concrete around rebar, that due to the expansion of these corroded rebar products, was obtained. The theory of elasticity method is used to validate the distribution of stress in concrete around rebar. The location of cracks would be predicted by the distribution of stress in concrete around the rebar.

260t Ladle Stress and Deformation Finite Element Analysis

2014 ◽  
Vol 936 ◽  
pp. 1886-1889
Author(s):  
Yan Ping Sun ◽  
De Chen Zhang ◽  
Ming Yang ◽  
Yuan Li
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Working Conditions ◽  
Structural Deformation ◽  
Analysis Software ◽  
Element Analysis ◽  
Strength And Stiffness ◽  
Stress And Deformation ◽  
Distribution Of Stress ◽  
Optimal Designing

In this paper, iron ladle stress and deformation has been accurately calculated using finite element analysis software ANSYS based on 260t iron ladle in standing, lifting, tipping working conditions. Distribution of stress field was obtained. The stiffness and strength of the iron ladle has been evaluated. The results show that the iron ladle in the standing, lifting and tipping working conditions, structural deformation is small, the strength and stiffness meet the requirements. This research extends the working life of 260t iron ladle. It provides theoretical basis for producing and using of the iron ladle and further optimal designing.

Stress Field Numerical Simulation of the Inclusions in Large Rudder Arm Steel Casting

2011 ◽  
Vol 311-313 ◽  
pp. 906-909 ◽  
Author(s):  
Jing Pei Xie ◽  
Ai Qin Wang ◽  
Wen Yan Wang ◽  
Ji Wen Li ◽  
Di Xin Yang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Field ◽  
Deformation Behavior ◽  
Analysis Software ◽  
Element Analysis ◽  
Metallic Inclusions ◽  
The Matrix ◽  
Steel Castings

The influences of non-metallic inclusions on the quality and properties of the steel not only depended on the quantity of inclusions, but also on the type、shape、size、deformation behavior and distribution condition. By means of ANSYS finite element analysis software, the stress field distribution in the inclusions and the matrix around the inclusions are analyzed under the condition of different kinds of types、shapes、distributions with changeable load in heavy rudder arm steel castings, then micromechanics behavior of inclusions is investigated from angle of macro mechanics.

Numerical Simulation of Liner Curvature Radius on Formation of LEFP

2014 ◽  
Vol 941-944 ◽  
pp. 2305-2308 ◽  
Author(s):  
Rui Jun Gou
Keyword(s):  
Numerical Simulation ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Small Radius ◽  
Curvature Radius ◽  
Arbitrary Lagrangian Eulerian ◽  
Analysis Software ◽  
Forming Process ◽  
Element Analysis ◽  
Charge Structure

In order to obtain a linear explosively formed projectile (LEFP) with a good flying form under large stand-off, the LS-Dyna finite element analysis software and arbitrary Lagrangian - Eulerian (ALE) algorithm were used to simulate the forming process of LEFP with a 30mm charge structure diameter. On the basis of that, the only changed factor was the curvature radius of the liner which was selected as 0.65D, 0.75D, 0.85D, 1.0D and 1.1D for the simulation of LEFP forming progress. The warhead speed-time curves and fracture surfaces of the LEFP are analyzed, with liner radius decreasing, the projectiles become more slender, and instead, the larger radius liner forms flat and wide LEFP. Slender LEFP is conductive to penetration, however the over small radius which cause the reduction of weight and kinetic energy makes fracture easily, oversize radius influence either end of LEFP that warps upward seriously , what means speed grads of both ends differ greatly .The suitable radius ranges from 0.75D to 1.0D.

Numerical Simulation of Single Metal Progressive Cavity Pump

2013 ◽  
Vol 655-657 ◽  
pp. 372-375
Author(s):  
Xian Jun Zhou ◽  
Zhao Sheng Feng
Keyword(s):  
Numerical Simulation ◽  
Finite Element Analysis ◽  
Finite Element ◽  
High Temperature ◽  
Distribution Characteristics ◽  
Motion Simulation ◽  
Analysis Software ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Reasonable Range

The motion law of single metal progressive cavity pump was studied through motion simulation. Then, the finite element analysis software ANSYS was used to analyze the distribution characteristics and the influencing factors of the contact pressure. It was pointed out that the single metal progressive cavity pump has the ability to withstand high temperature and the differential pressure mainly influences the wear. At last the reasonable range of the clearance was given.

Simulation Analysis and Process Control of an Arch Bridge for Replacement of Tie Bars

2011 ◽  
Vol 90-93 ◽  
pp. 1720-1725
Author(s):  
Si Tian Chen ◽  
Ting Ting Yang ◽  
Li Qun Wu
Keyword(s):  
Numerical Simulation ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Simulation Analysis ◽  
Steel Tube ◽  
Nonlinear Finite Element ◽  
Bridge Structure ◽  
Control Parameters ◽  
Analysis Software ◽  
Element Analysis

The numerical simulation analysis, by using senior nonlinear finite element analysis software MSC.Marc, was achieved in this paper for the tie-replacing procedures of a steel tube tied-arch filled with concrete. Through this analysis, the control parameters were accurately determined for the installing of new ties and the removing of old ties. Results of numerical analysis ensured the bridge structure stable during the replacement, made the construction of safe and convenient, and played a guiding role in the maintenance and reinforcement. The successful experience could be referenced by other similar projects.

Influence of Cross Beam on the Stress of Joints in A-Type Pier of a Bridge

2012 ◽  
Vol 446-449 ◽  
pp. 1329-1332
Author(s):  
Chun Ping Tang ◽  
Liang Liang Zhang
Keyword(s):  
Numerical Simulation ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Distribution ◽  
Maximum Stress ◽  
Analysis Software ◽  
Element Analysis ◽  
Beam Depth ◽  
Layer Analysis ◽  
High Pier

Non-linear numerical simulation is done on A-type super high pier by using finite element analysis software ANSYS, obtaining the node stress distribution under load in the node area taken in the sequential layer analysis of overall mode. The conclusion is mainly as follows: the change of width and thickness of cross beam exerts slight impact on the maximum stress of the node while the change of cross beam depth impacts the node stress much. From the computation, it can be concluded that proper reduction of cross beam depth is beneficial to the node stress.

Optimization of Refrigerator Door Structure Based on ABAQUS

2012 ◽  
Vol 226-228 ◽  
pp. 807-811
Author(s):  
Hou Yao Zhu ◽  
Chun Liang Zhang ◽  
Wu Xin Wang
Keyword(s):  
Numerical Simulation ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Impact Test ◽  
Simplified Model ◽  
Small Scale ◽  
Analysis Software ◽  
Element Analysis ◽  
Temperature Impact ◽  
Structure Scheme

The refrigerator door cover deformation or cracking is a major flaw in the BCD268 refrigerator. In this paper we create a simplified model of the refrigerator door. Based on the standard modules of ABAQUS finite element analysis software, this paper analyzed the deformation mechanism of the refrigerator door, and determined the parts of the deformation. Aiming at the deformation and cracking, the numerical simulation of BCD 268 door cover was conducted, and two kinds of different options to strengthen the ribs were proposed, then the two programs were carried out through finite element analysis, and prototypes were fabricated high and low temperature impact test for validation. Optimal structure scheme was verified by contrast. The designed lower-door covers were produced in small scale, and it proved to be consistent with the numerical results of finite element.

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