Experimental Study and Finite Element Analysis of Concrete Simple Supported Beams Strengthened with Externally Prestressed CFRP Tendons

2013 ◽  
Vol 405-408 ◽  
pp. 1017-1021
Author(s):  
Feng Xu ◽  
Le Huang
Keyword(s):  
Finite Element Analysis ◽  
Experimental Study ◽  
Finite Element ◽  
Engineering Application ◽  
Finite Element Calculation ◽  
Test Results ◽  
Element Calculation ◽  
Flexural Capacity ◽  
Element Analysis ◽  
Stress Changes

The concrete simple supported beams were strengthened by an innovative device mainly includes oblique screws and linear CFRP tendons. A static experimental study and finite element analysis were conducted to research the flexural capacity and stress changes of CFRP tendons of strengthened beams, and the contrastive analysis was explored between finite element calculation results and test results. The results indicate that the strengthen system can significantly improve the flexural capacity of concrete beams, there is basically a linear relationship between the stress increment of CFRP tendon and the deflection of midspan section, and the finite element calculation value is in agreement with the test results. Based on this, the stress of concrete near holes was analysed using finite element method (FEM), which can provide a reference for practical engineering application.

Finite Element Analysis of Tianerya Trench-Buried Inverted Siphon

2013 ◽  
Vol 804 ◽  
pp. 320-324
Author(s):  
Xiang Zan Xie
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Finite Element Calculation ◽  
Construction Process ◽  
Element Calculation ◽  
Element Analysis ◽  
Operational Process ◽  
Inverted Siphon ◽  
Calculation Results ◽  
Calculation Software

This paper adopts universal finite element calculation software to carry out finite element analysis for Tianerya trench-buried inverted siphon. Researching variation law of the inverted siphons stress and displacement in construction process and operational process. The calculation results further shown design schemes rationality and safety. The analysis results provide a certain reference for design of trench-buried inverted siphon structure.

Finite Element Analysis of the Effect of Particle Shape on the Thermal Conductivity in Diamond/Cu Composites

2014 ◽  
Vol 788 ◽  
pp. 689-692
Author(s):  
Hong Guo ◽  
Yuan Yuan Han ◽  
Xi Min Zhang ◽  
Fa Zhang Yin ◽  
Ye Ming Fan ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Finite Element Method ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Thermal Resistance ◽  
Particle Shape ◽  
Finite Element Calculation ◽  
Element Calculation ◽  
Element Analysis ◽  
Result Show

The effect of diamond shape on the thermal conductivity of diamond/Cu composites was studied by combine finite element method with the tests. The finite element result show that the thermal conductivity of the hexoctahedron diamond/Cu composites and the square diamond/Cu composites is 819 W/m·K and 1013 W/m·K respectively. And the testing results indicate that the thermal conductivity of the single hexoctahedron diamond/Cu composites and the hexoctahedron mixed with the square diamond/Cu composites is 659W/m·K and 720 W/m·K respectively. The testing results consist with the finite element calculation. Under the same circumstances, more {100} faces can bring in less overall thermal resistance in the composites thus improve the thermal conductivity of the composites. The results show that using square diamond particles helps to improve the thermal conductivity of diamond/Cu composites.

The Study of ANSYS-Based Finite Element Calculation Model for Push-Back Rack

2013 ◽  
Vol 712-715 ◽  
pp. 1111-1115
Author(s):  
Bei Li ◽  
Zhuan Wang ◽  
Yi Li Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Calculation Model ◽  
Finite Element Calculation ◽  
Element Calculation ◽  
Element Analysis ◽  
Modeling And Analysis ◽  
The Finite Element Analysis ◽  
Load Characteristics ◽  
Calculating Model

A kind of calculating model was proposed according to the structure and load characteristics of push-back rack. On the basis of study on modeling and analysis technology using ANSYS, the finite element analysis of push-back rack was realized, which can provide reference to the design and calculation of push-back rack.

Research on Finite Element Analysis of Nanping Inverted Siphon Engineering

2013 ◽  
Vol 394 ◽  
pp. 353-356
Author(s):  
Dongy Yu Ji
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Finite Element Calculation ◽  
Construction Process ◽  
Element Calculation ◽  
Force Analysis ◽  
Element Analysis ◽  
Inverted Siphon ◽  
Calculation Results ◽  
Calculation Software

This paper adopts universal finite element calculation software to carry out force analysis for Nanping trench-buried inverted siphon,computer is applied in analysis of trench-buried inverted siphon. Deducing variation law of the inverted siphons stress and displacement in construction process and operational process. The calculation results further shown design schemes rationality and safety. which provide reliable reference of design and construction for the trench-buried inverted siphon.

The Experimental Study and Finite Element Analysis on Deflection of RC Two-Way Slabs Reinforced with CFRP

2011 ◽  
Vol 368-373 ◽  
pp. 2291-2294
Author(s):  
Wen Sheng Li ◽  
Xiao Wei Wang ◽  
Xiao Wu Deng
Keyword(s):  
Finite Element Analysis ◽  
Experimental Study ◽  
Finite Element ◽  
Reinforced Concrete ◽  
Flexural Stiffness ◽  
Test Results ◽  
Element Analysis ◽  
Finite Element Software ◽  
Ansys Analysis

The rule of stiffness and deflection change of reinforced concrete two-way slabs strengthened by CFRP was discussed after test research. The results were analyzed with ANSYS finite element software and compared with test results, and the ANSYS finite element analysis results agreed well with test results. It shows that CFRP can improve the flexural stiffness of reinforced concrete two-way slabs and effectively restrain deflection deformation of them. So ANSYS analysis results can provide reference for the test and engineering.

Finite Element Analysis of Woven Fabric Laminates Structural Strength

2013 ◽  
Vol 785-786 ◽  
pp. 199-203 ◽  
Author(s):  
Gang Tong ◽  
Tong Fei Liu
Keyword(s):  
Experimental Data ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Finite Element Model ◽  
Structural Strength ◽  
Element Model ◽  
Finite Element Calculation ◽  
Woven Fabric ◽  
Element Calculation ◽  
Element Analysis

The characteristics of the woven fabric laminates structure is described. The steps and method of building the woven fabric laminates structure finite element model in MSC Patran is provided. The accuracy of this method is verified by a group of finite element calculation and experimental data.

Finite Element Analysis of Reinforced Concrete Beams with Exterior FRP Shell

2011 ◽  
Vol 243-249 ◽  
pp. 1461-1465
Author(s):  
Chuan Min Zhang ◽  
Chao He Chen ◽  
Ye Fan Chen
Keyword(s):  
Mechanical Properties ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Reinforced Concrete ◽  
Concrete Beams ◽  
Reinforced Concrete Beams ◽  
Test Results ◽  
Contact Interface ◽  
Accurate Calculation ◽  
Element Analysis

The paper makes an analysis of the reinforced concrete beams with exterior FRP Shell in Finite Element, and compares it with the test results. The results show that, by means of this model, mechanical properties of reinforced concrete beams with exterior FRP shell can be predicted better. However, the larger the load, the larger deviation between calculated values and test values. Hence, if more accurate calculation is required, issues of contact interface between the reinforced concrete beams and the FRP shell should be taken into consideration.

Separation of Primary Stress in Finite Element Analysis of Pressure Vessel with the Principle of Superposition

2007 ◽  
Vol 353-358 ◽  
pp. 373-376 ◽  
Author(s):  
Bing Jun Gao ◽  
Xiao Ping Shi ◽  
Hong Yan Liu ◽  
Jin Hong Li
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Engineering Application ◽  
Total Stress ◽  
Principle Of Superposition ◽  
Element Analysis ◽  
Primary Stress ◽  
The Finite Element Analysis ◽  
Asme Code ◽  
Allowable Load

A key problem in engineering application of “design by analysis” approach is how to decompose a total stress field obtained by the finite element analysis into different stress categories defined in the ASME Code III and VIII-2. In this paper, we suggested an approach to separate primary stress with the principle of superposition, in which the structure does not need to be cut into primary structure but analyzed as a whole only with decomposed load. Taking pressurized cylindrical vessel with plate head as example, the approach is demonstrated and discussed in detail. The allowable load determined by the supposed method is a little conservative than that determined by limited load analysis.

Failure analysis of simple overlap bonding joints and numerical investigation of the adhered tip geometry effect on the joint strength

2021 ◽  
Vol 63 (11) ◽  
pp. 1007-1011
Author(s):  
İsmail Saraç
Keyword(s):  
Finite Element Analysis ◽  
Experimental Study ◽  
Finite Element ◽  
Reference Model ◽  
Lap Joints ◽  
Shear Stresses ◽  
Element Analysis ◽  
Single Lap Joints ◽  
Failure Loads ◽  
Previous Experimental Study

Abstract This study was carried out in two stages. In the first step, a numerical study was performed to verify the previous experimental study. In accordance with the previous experimental study data, single lap joints models were created using the ANSYS finite element analysis program. Then, nonlinear stress and failure analyses were performed by applying the failure loads obtained in the experimental study. The maximum stress theory was used to find finite element failure loads of the single lap joints models. As a result of the finite element analysis, an approximate 80 % agreement was found between experimental and numerical results. In the second step of the study, in order to increase the bond strength, different overlap end geometry models were produced and peel and shear stresses in the adhesive layer were compared according to the reference model. As a result of the analyses, significant strength increases were calculated according to the reference model. The strength increase in model 3 and model 5 was found to be 80 % and 67 %, respectively, relative to the reference model.

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