scholarly journals Numerical Analysis of Eccentrically Loaded Cold-Formed Plain Channel Columns

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
A. P. Nivethitha ◽  
G. Vani ◽  
P. Jayabalan
Keyword(s):  
Finite Element ◽  
Parametric Study ◽  
Ultimate Load ◽  
Element Model ◽  
Free Edge ◽  
General Purpose ◽  
Element Analysis ◽  
Finite Element Software ◽  
Axially Loaded ◽  
The Finite Element Model

Finite element analysis of pinned cold-formed plain channel columns of different width-to-thickness ratios is presented in this paper. The study is focused not only on axially loaded columns, but also on eccentrically loaded columns. The general purpose finite element software ABAQUS 6.12 was used, and the force controlled loading was adopted. Geometric and material nonlinearities were incorporated in the finite element model. The ultimate loads are compared with the direct strength method (DSM) for axially loaded columns. Also, a parametric study is done by varying the length of the column and width of the unstiffened element. It is observed that the results correlate better with the DSM values for columns having unstiffened elements of lower bf/t ratios. The change in ultimate load is studied only in ABAQUS, as the position of load moves towards the free edge and the supported edge of the unstiffened element. A parametric study is done by varying the nonuniform compression factor for the columns. It is observed that the ultimate load increases as the position of load moves towards the supported edge and it is influenced by the bf/t ratio of the unstiffened element.

Finite Element Analysis of Frame of Dump Truck

2015 ◽  
Vol 733 ◽  
pp. 591-594
Author(s):  
Yong Zhen Zhu ◽  
Kuo Yang ◽  
Qi Yang ◽  
Yun De Zhao
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
3D Model ◽  
Element Model ◽  
Dump Truck ◽  
Stress Distributions ◽  
Improved Method ◽  
Element Analysis ◽  
Finite Element Software ◽  
The Finite Element Model

The CAD software was used to establish 3D model of frame of dump truck, and the finite element model was established through Hyper Mesh. The stress distributions of the frame in vertical accelerating, turning, twisting and climbing conditions were computed through finite element software when the dump truck was loaded 80t. The result is consistent with the actual situation of the frame, which proved that the approach of finite element analysis is feasible. And we proposed the improved method of the frame according to finite element results.

scholarly journals NotePrediction of early age curling in thin concrete topping over wood floor systems

2002 ◽  
Vol 29 (4) ◽  
pp. 622-626
Author(s):  
Peter Lee ◽  
Ying H Chui ◽  
Ian Smith ◽  
Noel Mailvaganam ◽  
Gerry Pernica
Keyword(s):  
Finite Element ◽  
Parametric Study ◽  
Element Model ◽  
Moisture Distribution ◽  
Element Analysis ◽  
Wood Floor ◽  
Relative Moisture ◽  
Floor Systems ◽  
Floor System ◽  
The Finite Element Model

This paper presents finite element simulations of curling of unreinforced concrete topping laid over wood floor systems. The finite analysis consists of two parts. The first part calculates the relative moisture distribution with respect to the age of the concrete, while the second determines the topping curling deformation based on modulus of elasticity, density, and shrinkage of the concrete. With the finite element model the curling profile at any point in time can be predicted. Predictions agree reasonably well with measurements from a full-sized wood floor with a thin concrete topping. A model-based parametric study was performed. For the floor size investigated the results of the parametric study indicate that curling is greatly influenced by topping thickness and relative humidity of the surrounding air. Although the modelling as discussed is a preliminary approach, it provides a basis for further enhancements that will address factors such as creep and relaxation of concrete and deformation of the underlying floor system. Key words: finite element analysis, concrete topping, wood floor, curling, shrinkage.

Finite Element Analysis to Vibratory Drum - Soil Model of Vibratory Roller

2011 ◽  
Vol 94-96 ◽  
pp. 2005-2008 ◽  
Author(s):  
Yuan Wen Cao ◽  
Xue Jiao Huang ◽  
Li Ying Ma ◽  
Sheng Qiu ◽  
Shao Xiong Gui
Keyword(s):  
Finite Element ◽  
Longitudinal Vibration ◽  
Soil Surface ◽  
Element Model ◽  
Element Analysis ◽  
Soil System ◽  
Linear Character ◽  
Finite Element Software ◽  
Vibration Compaction ◽  
The Finite Element Model

In this paper a dynamical equation about vibratory drum - soil system was set based on the non-linear character of vibration compaction of vibratory roller. The finite element model of vibratory drum - soil system was established by the finite element software ABAQUS, with which the vibration compaction process of vibratory drum is simulated. According to the analysis of the vibration propagation on the soil surface, the longitudinal vibration propagation of soil, the stress and strain of the soil under the vibratory drum, results have proved that it is valid to simulate the interaction between vibratory drum and soil by the nonlinear finite element method, which offered a new way to research the interaction between vibratory drum and soil.

A Study of the Partially Prestressed Tendons RPC Concrete Pole Connection Design

2012 ◽  
Vol 166-169 ◽  
pp. 534-537
Author(s):  
Yan Zhong Ju ◽  
Dong Xu Yu ◽  
Wang Dehong
Keyword(s):  
Finite Element ◽  
Ultimate Load ◽  
Design Method ◽  
Element Model ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Practical Design ◽  
Connection Design ◽  
The Finite Element Model ◽  
Abaqus Software

In order to study and solve the problem of connection on the part of the prestressed tendons RPC concrete pole engineering. Design connecting flange suitable for the existing part of the prestressed tendons RPC concrete pole developed by our group used the connection flange in Steel tower as the prototype.Through the ABAQUS software to establish the finite element model between the connection flange and part of the prestressed tendons RPC concrete pole, and carry out finite element analysis.Through the finite element analysis to get results whether the design of connecting flange can meet the strength requirements when the prestressed tendons RPC concrete pole is under ultimate load, so to get the practical design method of the 500kv part prestressed RPC concrete pole connecting flange.

Finite Element Analysis of Anti-Reflective Crack for Geosynthetic in Asphalt Overlay of Airport Runway

2012 ◽  
Vol 503-504 ◽  
pp. 847-850
Author(s):  
Zhi Gang Luo ◽  
Yan Liu ◽  
Sui Yuan Wang ◽  
Bo Diao
Keyword(s):  
Finite Element ◽  
Surface Deformation ◽  
Element Model ◽  
General Purpose ◽  
Main Role ◽  
Element Analysis ◽  
Finite Element Software ◽  
Asphalt Overlay ◽  
Calculation Results ◽  
Airport Runway

To make clear the work mechanism of geosynthetic in asphalt overlay under the aircraft wheel loads, one 3D dimension finite element model was constructed on the basis of the general purpose finite element software ABAQUS. Numerical calculation results with different geosynthetic modulus are presented in this paper, and show that it is very limited for geosynthetic to reduce bottom stress and surface deformation of asphalt overlay, and asphalt overlay bottom is in compression state, thus, geosynthetic can not exert it’s film tension function, namely the main role of geosynthetic is not to bear loads together with asphalt overlay, but to improve stress state of asphalt overlay for preventing cracks appearance or delaying cracks expansion.

Finite Element Analysis of Tensile Modulus of X-Cor Sandwich

2011 ◽  
Vol 403-408 ◽  
pp. 3647-3651
Author(s):  
Xu Dan Dang ◽  
Shao Jie Shi ◽  
Jun Xiao
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Finite Element Model ◽  
Tensile Modulus ◽  
Element Model ◽  
Element Analysis ◽  
Finite Element Software ◽  
Basic Hypothesis ◽  
Micro Structures ◽  
The Finite Element Model

Through the analysis of micro-structures of Z-pin ends the basic hypothesis of elliptic configuration of the resin regions around Z-pin ends were proposed. The finite element model of the tensile modulus of X-cor sandwich was established and the finite element software ANSYS was used in the computation. The effects of Z-pin angle, diameter and density on the tensile modulus of X-cor sandwich were analyzed. Via the analysis of finite element model, the influencing trends of parameters of X-cor sandwich on the tensile modulus are achieved and the error range is ±10%. So the rationality of the proposed finite element model is verified and the finite element model can be used to forecast the tensile modulus of X-cor sandwich.

Finite Element Analysis of X-Cor Sandwich’s Shear Modulus

2011 ◽  
Vol 328-330 ◽  
pp. 1113-1117
Author(s):  
Xu Dan Dang ◽  
Shao Jie Shi ◽  
Jin San Jiang ◽  
Jun Xiao
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Shear Modulus ◽  
Finite Element Model ◽  
Geometric Analysis ◽  
Element Model ◽  
Analysis Model ◽  
Element Analysis ◽  
Finite Element Software ◽  
The Finite Element Model

Through the observation of photomicrographs of resin regions around Z-pin ends, the basic hypothesis of the elliptic configuration of resin regions in the X-cor sandwich were proposed. The parametric equations for describing the microscopic structures of resin regions were given. Then the geometric analysis model of X-cor sandwich was established. The finite element software ANSYS was used to establish the finite element model of the shear modulus and the shear modulus was calculated. The error range of finite element analysis is between ±10%. So the rationality of finite element model is verified and the finite element model can be used to forecast the shear modulus.

Finite Element Analysis of Track Rollers of the Crawler Excavator Based on ANSYS

2011 ◽  
Vol 467-469 ◽  
pp. 1803-1807
Author(s):  
Lan Zhou ◽  
Qing Wen Qu ◽  
Cheng Jun Wang ◽  
Hao Qian Zhang
Keyword(s):  
Finite Element ◽  
Friction And Wear ◽  
Element Model ◽  
Wear Properties ◽  
Element Analysis ◽  
Finite Element Software ◽  
Maximum Value ◽  
Friction And Wear Properties ◽  
Improvement Scheme ◽  
The Finite Element Model

The finite element model of track roller assembly of the Pc200-7 hydraulic excavator were established by the finite element software ANSYS. According to the actual working conditions of excavators, two working status of track roller assembly were summarized. Then, the structure linear static analysis to the different operating models was respectively carried on. The stress distribution situation and maximum value stress of the track roller assembly were obtained. At the same time, from the friction and wear properties, the effect of wearing on service life of the track roller was analyzed. And the improvement scheme to the easy wear parts is also proposed in the paper. The valuable reference dates is provided to the design and optimize problems and their internal friction and wear behaviors about track roller assembly of the crawler-type.

Redrawing Operation a Star Shape from Cylindrical Shape Using Experimental and FE Analysis

2020 ◽  
Vol 38 (1A) ◽  
pp. 25-32
Author(s):  
Waleed Kh. Jawad ◽  
Ali T. Ikal
Keyword(s):  
Finite Element ◽  
Effective Strain ◽  
Element Model ◽  
Cylindrical Shape ◽  
Element Analysis ◽  
Punch Force ◽  
Maximum Value ◽  
Element Simulation ◽  
Blank Sheet ◽  
The Finite Element Model

The aim of this paper is to design and fabricate a star die and a cylindrical die to produce a star shape by redrawing the cylindrical shape and comparing it to the conventional method of producing a star cup drawn from the circular blank sheet using experimental (EXP) and finite element simulation (FES). The redrawing and drawing process was done to produce a star cup with the dimension of (41.5 × 34.69mm), and (30 mm). The finite element model is performed via mechanical APDL ANSYS18.0 to modulate the redrawing and drawing operation. The results of finite element analysis were compared with the experimental results and it is found that the maximum punch force (39.12KN) recorded with the production of a star shape drawn from the circular blank sheet when comparing the punch force (32.33 KN) recorded when redrawing the cylindrical shape into a star shape. This is due to the exposure of the cup produced drawn from the blank to the highest tensile stress. The highest value of the effective stress (709MPa) and effective strain (0.751) recorded with the star shape drawn from a circular blank sheet. The maximum value of lamination (8.707%) is recorded at the cup curling (the concave area) with the first method compared to the maximum value of lamination (5.822%) recorded at the cup curling (the concave area) with the second method because of this exposure to the highest concentration of stresses. The best distribution of thickness, strains, and stresses when producing a star shape by

Analysis of Hydroelectric Unit’s Upper Bracket Based on Test and FEM

2014 ◽  
Vol 721 ◽  
pp. 131-134
Author(s):  
Mi Mi Xia ◽  
Yong Gang Li
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Element Model ◽  
The Finite Element Method ◽  
Ansys Software ◽  
Element Analysis ◽  
Hydroelectric Unit ◽  
The Finite Element Analysis ◽  
Strain Rosette ◽  
The Finite Element Model

To research the load upper bracket of Francis hydroelectric unit, then established the finite-element model, and analyzed the structure stress of 7 operating condition points with the ANSYS software. By the strain rosette test, acquired the data of stress-strain in the area of stress concentration of the upper bracket. The inaccuracy was considered below 5% by analyzing the contradistinction between the finite-element analysis and the test, and match the engineering precision and the test was reliable. The finite-element method could be used to judge the stress of the upper bracket, and it could provide reference for the Structural optimization and improvement too.

Sign in / Sign up

Export Citation Format

Share Document