ACSR Strands Stress Numerical Simulation

2012 ◽  
Vol 256-259 ◽  
pp. 710-713
Author(s):  
Li Qin ◽  
Jun Kuo Li ◽  
Qiang Fu
Keyword(s):  
Mechanical Properties ◽  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Principal Part ◽  
Concentration Level ◽  
Structural Characteristics ◽  
Stress And Strain ◽  
Electricity Power ◽  
Distribution Of Stress

As an important carrier of electricity power, ACSR is a principal part of power system and is directly related to the transmission line reliability and safety. ACSR strands stress analysis is the foundation of studying ACSR mechanical properties. In this paper, finite element method is used to analysis the Acsr strands stress. The structural characteristics of Acsr is considered and the complete Acsr model is created by ansys to simulate the distribution of stress and strain under appropriate boundary conditions. The Conclusions are drawn that both the state of strands stress and the stress concentration level are related with its structural properties. The strands of out layers bears more stress and firstly comes into plastic strain. The results of the research is helpful to the further study of ACSR strength and conductor fatigue life.

Study on the Mechanical Properties of Sapphire by Numerical Simulation and Nanoindentation Technology

2009 ◽  
Vol 69-70 ◽  
pp. 103-107 ◽  
Author(s):  
Ke Hua Zhang ◽  
Dong Hui Wen ◽  
Tao Hong ◽  
Ju Long Yuan
Keyword(s):  
Mechanical Properties ◽  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Plastic Region ◽  
Nanoindentation Test ◽  
Fe Modeling ◽  
The Finite Element Method ◽  
Simulation And Experiment ◽  
Abrasive Process

This paper presents a finite element (FE) modeling of the nanoindentation test of sapphire, in which the finite element method was employed to study the mechanical characteristic of sapphire under the nanoindentation process. The results demonstrated that the nanoindentation FE models were able to simulate the indentation loading-unloading curves of the sapphire. The load and unload displacement curves of the simulation and experiment results can match with each other well, and then the properties used in the simulation should be the actual properties of the sapphire. The Mises stress field distribution of the sapphire sample was calculated to reveal the alteration from elastic region to plastic region, which are useful for indentifying the ductile to brittle change in the sapphire abrasive process.

Thermal Stress Performance Analysis for a New External Wall Insulation System

2011 ◽  
Vol 71-78 ◽  
pp. 1929-1932
Author(s):  
Jian Guang Li
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
The Other ◽  
Stress And Strain ◽  
Insulation System ◽  
Shear Key ◽  
Small Frame ◽  
Extreme High Temperature ◽  
System Temperature

In this paper, two models are taken as subjects, one being a small frame exterior composite insulation system with the shear key, the other being the system without the shear key. In extreme high temperature conditions in summer, the small frame exterior composite insulation system temperature stress and strain are analyzed with numerical simulation using finite element method. Results show that shear key can effectively reduce the stress concentration, weaken the stress peak by nearly 50% and reduce the deformation by nearly 50% as well, thus effectively reducing the probability of crack cracking, improving the durability and extending service life.

Analysis of Micro/Nanoscale Mechanical Properties of Monocrystalline Germanium Using Finite Element Method and Nanoindentation Experiment

2014 ◽  
Vol 574 ◽  
pp. 119-126
Author(s):  
Han Qing Gu ◽  
Xiao Jing Yang
Keyword(s):  
Mechanical Properties ◽  
Finite Element Method ◽  
Finite Element ◽  
Residual Deformation ◽  
Stress And Strain ◽  
Displacement Curve ◽  
Crystal Orientations ◽  
Nanoindentation Experiment ◽  
Monocrystalline Germanium ◽  
Element Method

The finite element method and nanoindentation experiment are used in this paper, to analysis mechanical properties of monocrystalline germanium on micro/nanoscale. The cloud charts of stress and strain distribution are obtained by finite element method. It is shown that the depth increment of the contact makes the value of stress and strain in the surface layer greater and the area of action larger in the process of nanoindentation of monocrystalline germanium. In the nanoindentation experiment, load and displacement curve is different with different crystal orientations. With the increase of load, contact depth has been increased. The residual deformation depth of three crystal orientations is also different. The results of FEM is is closed to the crystal orientation of [100].

Finite Element Simulation and Experimental Research on the Internal Rolling Connection for Titanium Alloy Tubes

2005 ◽  
Vol 475-479 ◽  
pp. 3287-3290 ◽  
Author(s):  
Yuan Song Zeng
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Material Flow ◽  
Rolling Process ◽  
Fe Analysis ◽  
Stress And Strain ◽  
The Finite Element Method ◽  
Mechanical Method ◽  
Element Simulation ◽  
Distribution Of Stress

In this paper, the internal rolling process is presented to connect the titanium tubes to the tube fitting with the mechanical method. The material flow, the distribution of stress and strain and the connecting mechanics are analyzed by using the finite element method(FEM) for two kinds of the tube fitting structures, the triangle grooves and the rectangle grooves. Rolling experiments and tests for pressure durability, gas-sealing ability, surface finish and contact percent are also introduced. Results show that the tube joints with the triangle grooves has very excellent connecting strength, and the FE analysis agrees well with the experiments.

Reinforcement of Structures with Composite Materials

2019 ◽  
Vol 974 ◽  
pp. 535-541
Author(s):  
Galina M. Kravchenko ◽  
Elena V. Trufanova ◽  
Artem S. Osadchiy ◽  
Alina Sazonova
Keyword(s):  
Mechanical Properties ◽  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Composite Materials ◽  
Dynamic Characteristics ◽  
Strain State ◽  
Physical And Mechanical Properties ◽  
The Finite Element Method ◽  
New Materials

The aim of the work is to study the ways to strengthen the elements of the parametric architecture object framework based on the use of the new materials. The problem of strengthening the elements of the building frame is particularly relevant in connection with the development of the parametric architecture. Unlike the traditional methods of regulation and amplification, composite materials allow to change the stress-strain state and improve the dynamic characteristics of the parametric architecture object without increasing its own structures weight. The studies were performed using numerical simulation by the finite element method. Recommendations are given on the use of the physical and mechanical properties of the composite materials when strengthening the building framework.

Numerical simulation of mechanical properties of nickel base casting superalloy with the mesoscale finite element method

2015 ◽  
Vol 19 (sup5) ◽  
pp. S5-794-S5-798
Author(s):  
Geng Haipeng ◽  
Ding CunHua ◽  
Lu Mingjian ◽  
Zhou Xifeng ◽  
Liu Xueyun ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Nickel Base ◽  
Element Method

The study of the elastic deformation of a flexible wheel by a cam wave generator

2020 ◽  
Vol 65 (1) ◽  
pp. 51-58
Author(s):  
Sava Ianici
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Elastic Deformation ◽  
Theoretical Study ◽  
Elastic Field ◽  
The Finite Element Method ◽  
Elastic Deformations ◽  
Wave Generator ◽  
Two Stages

The paper presents the results of research on the study of the elastic deformation of a flexible wheel from a double harmonic transmission, under the action of a cam wave generator. Knowing exactly how the flexible wheel is deformed is important in correctly establishing the geometric parameters of the wheels teeth, allowing a better understanding and appreciation of the specific conditions of harmonic gearings in the two stages of the transmission. The veracity of the results of this theoretical study on the calculation of elastic deformations and displacements of points located on the average fiber of the flexible wheel was subsequently verified and confirmed by numerical simulation of the flexible wheel, in the elastic field, using the finite element method from SolidWorks Simulation.

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