scholarly journals Stress Analysis for Cylinder Made of FGM and Subjected to Thermo-Mechanical Loadings

Metals ◽  
2018 ◽  
Vol 9 (1) ◽  
pp. 4 ◽  
Author(s):  
El-Sayed Habib ◽  
Medhat Awad El-Hadek ◽  
Abla El-Megharbel
Keyword(s):  
Finite Element Analysis ◽  
Stress Analysis ◽  
Radial Stress ◽  
Hoop Stress ◽  
Thermal Loading ◽  
Functionally Graded ◽  
Longitudinal Stress ◽  
Ansys Software ◽  
Element Analysis ◽  
Graded Materials

Functionally-graded materials (FGM) have recently been widely used. Furthermore, FGM are widely recommended in cylinder design. This study represents a mathematical analysis of the stresses and strains of an FGM cylinder. The paper is interested in introducing a stress analysis to an FGM cylinder where its properties vary exponentially in the r-direction. Firstly, a benchwork has been done and compared with recent works in the same field. The radial stress, the hoop stress, and the longitudinal stress on a cylinder under mechanical and thermal loading have been theoretically derived. In addition, a finite element analysis has been investigated through ANSYS software. Finally, the values of stresses obtained from the derived equations and the corresponding values of stresses obtained from ANSYS have been compared. The obtained results established the efficiency of the proposed stress distribution and the optimization model in this research, which would be helpful for understanding well the technical design of FGM vessels or related constructions.

Finite Element Analysis of Drum on the New Type Self-Driven Towing Machine for Cable

2011 ◽  
Vol 55-57 ◽  
pp. 664-669
Author(s):  
Jin Ning Nie ◽  
Hui Wang ◽  
De Feng Xie
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Analysis ◽  
Compressive Stress ◽  
Wire Rope ◽  
Ansys Software ◽  
Element Analysis ◽  
Structure Improvement ◽  
Improvement Measures ◽  
New Type

According to the situation that the dual-friction drums on the new type towing machine lack stress analysis when designed, the safety is difficult to test and verify. The pull of wire rope in various positions was derived and calculated, so both compressive stress and tangent friction force generated by the pull of wire rope were calculated. The result made by ANSYS software demonstrates the safety of the left drum which suffers from larger loads, structure improvement measures are put forward for the drum.

Study of the Process of Turbine Blade and Fixture Design Based on UG and ANSYS

2011 ◽  
Vol 421 ◽  
pp. 369-372
Author(s):  
Jie Shao Xin
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Analysis ◽  
Turbine Blade ◽  
Theoretical Basis ◽  
Three Dimensional ◽  
Processing Technology ◽  
Fixture Design ◽  
Ansys Software ◽  
Element Analysis

This paper made an analysis on the process of turbine blade, and completed the three-dimensional design of milling and cutting fixture used in the process on the UG software. After the stress analysis of the workpiece is completed, the author made a finite element analysis on both the blades and the main parts of the fixture with the help of ANSYS software, the results of the research provide theoretical basis for the development of reasonable processing technology and reliable workpiece assembly.

Longitudinal Stress Analysis of Local Compression on the Center of Plain Concrete Column

2014 ◽  
Vol 578-579 ◽  
pp. 71-74 ◽  
Author(s):  
Yan Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Analysis ◽  
Plain Concrete ◽  
Area Ratio ◽  
Concrete Column ◽  
Longitudinal Stress ◽  
Element Analysis ◽  
Compression Area

Taking local compression on the center of plain concrete square column as an example, by using finite element analysis found that longitudinal stressdistribution and size of local compression on the center of plain concrete square column related to local compression acting position and local compression area ratio.

scholarly journals Hygrothermal Fracture Analysis of Orthotropic Functionally Graded Materials UsingJk-Integral-Based Methods

2013 ◽  
Vol 2013 ◽  
pp. 1-11 ◽  
Author(s):  
Serra Topal ◽  
Serkan Dag
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Functionally Graded Materials ◽  
Fracture Analysis ◽  
Functionally Graded ◽  
Mixed Mode Fracture ◽  
Inclined Crack ◽  
Element Analysis ◽  
Moisture Concentration ◽  
Graded Materials

This paper puts forward two differentJk-integral-based methods, which can be used to perform mixed-mode fracture analysis of orthotropic functionally graded materials subjected to hygrothermal stresses. The first method requires the evaluation of both components ofJk-integral, whereas the second method employs the first componentJ1and the asymptotic crack tip displacement fields. Plane orthotropic hygrothermoelasticity is the basic theory behind theJk-integral formulation, which is carried out by assuming that all material properties are functions of the spatial coordinates. Developed procedures are implemented by means of the finite element method and integrated into a general purpose finite element analysis software. Temperature and specific moisture concentration fields needed in the fracture analyses are also computed through finite element analysis. Each of the developed methods is utilized in conjunction with the superposition technique to calculate the hygrothermal fracture parameters. An inclined crack located in a hygrothermally loaded orthotropic functionally graded layer is examined in parametric analyses. Comparisons of the results generated by the proposed methods do indicate that both methods lead to numerical results of high accuracy and that the developed form of theJk-integral is domain independent. Further results are presented so as to illustrate the influences of crack inclination angle, crack length, and crack location upon the modes I and II stress intensity factors.

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