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.

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.

3D Finite Element Analysis of Concrete Face Rockfill Dam

2012 ◽  
Vol 238 ◽  
pp. 264-267 ◽  
Author(s):  
Jian Wei Zhang ◽  
Sheng Zhao Cheng ◽  
Shu Fang Yuan ◽  
Yu Zhao
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Nonlinear Finite Element ◽  
Elastic Model ◽  
Analysis Software ◽  
Element Analysis ◽  
Rockfill Dam ◽  
Nonlinear Elastic ◽  
Concrete Face ◽  
Concrete Face Rockfill Dam

Concrete face rockfill dam has the certain superiority in the construction of dam. Duncan-Chang nonlinear elastic model is selected as the dam materials in ABAQUS, which is an nonlinear finite element analysis software. Stresses and deformations of the concrete face rockfill dam are analyzed during its completion, operation and water level drawdown periods. Study shows that all results meet the requirements of the project, and have referenced value for other similar engineering.

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.

Finite Element Analysis on Dynamic Behavior of Gangue Concrete-Filled Circular Steel Tube Beam

2010 ◽  
Vol 163-167 ◽  
pp. 2162-2166
Author(s):  
Guo Chang Li ◽  
Qi Feng Jiang ◽  
Ji Bai ◽  
Jie Jiang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Dynamic Behavior ◽  
Steel Tube ◽  
Experimental Results ◽  
Hysteresis Curve ◽  
Analysis Software ◽  
Element Analysis ◽  
Circular Steel Tube ◽  
Reversed Loading

The dynamic behavior of gangue concrete filled circular steel tube beam with different steel ratio under the cyclic loads are analyzed and studied based on finite element analysis software ABAQUS. Through reasonable modeling established, parameter set, an effective grid meshed, the hysteresis curve of gangue concrete filled circular steel tube beam under low-cycle reversed loading is given, and verified compared with the experimental results. The comparison shows that the simulated hysteretic curve gives results in close agreement with the experimental results. The simulated curve shows that there has the characteristic of spindle-shaped and no significant decline in stiffness of the hysteresis curve. And the fatness of hysteresis loop is better.

Finite Element Analysis on the Directly Buried Heating Bent Pipeline with Many Break Angles

2013 ◽  
Vol 842 ◽  
pp. 415-419
Author(s):  
Bao Xian Qian ◽  
Fei Wang ◽  
Guo Wei Wang
Keyword(s):  
Numerical Simulation ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Simulation Analysis ◽  
Design Method ◽  
Engineering Practice ◽  
Analysis Method ◽  
Element Analysis ◽  
Current Design ◽  
Practical Engineering

In order to get the optimal design scheme of a directly buried heating bent pipeline with many fold angles in a certain practical engineering, this paper simulated the pipeline by the ANSYS finite element analysis software.Through applying different boundary conditions to the model, the stress was analyzed, the destroy forms of the pipeline and the positions of stress danger points were determined,and the fatigue life was checked according to BS EN. Compared with the current design method,adopting numerical simulation analysis method has greatly reduced the number of the usage of compensators and fixed piers, broke through the restrictions for larger fold angle in the standard,and at the same time, it has reduced the construction difficulties and the engineering investment,improved the reliability of the network,this paper has guiding significance to the engineering practice.

Design and Simulation Analysis for Power Plant Coal Storage Bunker Girder Structure

2013 ◽  
Vol 706-708 ◽  
pp. 488-491
Author(s):  
Hong Mei Fan ◽  
Yun Xu Shi
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Power Plant ◽  
Simulation Analysis ◽  
Secondary Beam ◽  
Analysis Software ◽  
Element Analysis ◽  
Main Structure ◽  
Design Requirements

The structure of the closed square storage bunker main, secondary beam are designed in detail, and has carried on the simulation using finite element analysis software ANSYS, results show that the main structure of the design to meet the design requirements.

Mechanical Behavior of Concrete-Filled Double Steel Tubular Columns under Axial Compression Load

2012 ◽  
Vol 166-169 ◽  
pp. 3184-3188 ◽  
Author(s):  
Xin Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Axial Compression ◽  
Fe Simulation ◽  
Steel Tube ◽  
Reliable Data ◽  
Analysis Software ◽  
Element Analysis ◽  
Compression Load ◽  
Tubular Columns

This article analyzes five concrete-filled double steel tubular column models based on the large finite element analysis software ABAQUS. An axial compression test was carried out on specimens with different diameter-thickness ratio of internal steel tube in order to get the whole longitudinal load-displacement curves and the whole load- strain curves for internal and external steel tube and concrete. We get the ultimate bearing capacity for five specimens, the result of simulation agree well with the theoretical calculation data, that provide reliable data for concrete-filled double steel tubular column in respect of finite element (FE) simulation.

Research on ultra-precision polisher for the internal surface of the elbow

2020 ◽  
pp. 002072092094058
Author(s):  
Ping-Ping Qu ◽  
Wei-Na Liu
Keyword(s):  
Finite Element Analysis ◽  
Surface Roughness ◽  
Finite Element ◽  
Simulation Analysis ◽  
Internal Surface ◽  
Work Piece ◽  
Analysis Software ◽  
Polishing Process ◽  
Element Analysis ◽  
Ultra Precision

Aiming at the problem of ultra-precision polishing of the bore surface of the elbow, a new ultra-precision polishing instrument is designed, which is suitable for the inner hole finishing and finishing of the elbow, and is placed in the cavity of the work piece, the flexible line connecting spherically spraying ultra-precision polishing instrument. And the simulation analysis of the polishing process in the elbow is carried out by ANSYS 11.0 finite element analysis software. It is verified that the polishing instrument can finish the ultra-precision polishing of the internal surface of the elbow, and achieve the purpose of the internal surface roughness reduction.

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