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Daneshmand, Saeed
- Effects of Geometric Factors and Material Properties on Stress Behavior in Rotating Disk
Abstract Views :443 |
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Authors
Vahid Monfared
1,
Mohammadhassan Hassan
2,
Saeed Daneshmand
3,
Farshad Taheran
4,
Reza Ghaffarivardavagh
4
Affiliations
1 Department of Mechanical Engineering, Zanjan Branch, Islamic Azad University, Zanjan, IR
2 Department of Mechanical Engineering, Sharif University of Technology, PO Box 11365-9567,Tehran, IR
3 Department of Mechanical Engineering, Majlesi Branch, Islamic Azad University, Isfahan, IR
4 School of Mechanical Engineering, Sharif University of Technology, Tehran, IR
1 Department of Mechanical Engineering, Zanjan Branch, Islamic Azad University, Zanjan, IR
2 Department of Mechanical Engineering, Sharif University of Technology, PO Box 11365-9567,Tehran, IR
3 Department of Mechanical Engineering, Majlesi Branch, Islamic Azad University, Isfahan, IR
4 School of Mechanical Engineering, Sharif University of Technology, Tehran, IR
Source
Indian Journal of Science and Technology, Vol 7, No 1 (2014), Pagination: 1-6Abstract
In this study, effects of geometric factors and material properties are investigated on stress behavior of circular rotating disk with constant rotation in various industrial mechanisms using equilibrium equations, geometric relations and stress functions. In this way, research on a thin uniform and homogeneous circular disk under constant rotation is considered. The rotating motion produces centrifugal acceleration on each element of the rotating disk, and this rotating motion becomes the source of external loading for the mentioned problem. Additional exterior loadings are not assumed in this problem. It is comfortable to handle the centrifugal force loading by relating it to a body force density via the disk in order to increase strength (maximum stress) of circular rotating disk. Eventually, stress behavior of rotating disk is analyzed with considering geometric factors and material properties analytically. Finally, it is concluded that the mentioned factors affect on increasing and decreasing stress values of circular rotating disk under constant rotation.Keywords
Centrifugal Acceleration, Equilibrium Equations, Rotating DiskFull Text
References
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- Available from: www.matweb.com
- Role of Exponential and Power Law formulations in Contact Stress
Abstract Views :410 |
PDF Views:0
Authors
Vahid Monfared
1,
Mohammadhassan Hassan
2,
Saeed Daneshmand
3,
Farshad Taheran
4,
Amirhossein Monfared
5
Affiliations
1 Department of Mechanical Engineering, Zanjan Branch, Islamic Azad University, Zanjan, IR
2 Department of Mechanical Engineering, Sharif University of Technology, PO Box 11365–9567, Tehran, IR
3 Department of Mechanical Engineering, Majlesi Branch, Islamic Azad University, Isfahan, IR
4 School of Mechanical Engineering, Sharif University of Technology, Tehran, IR
5 Department of Industrial Intelligence Research Group. ACECR, Zanjan Branch, IR
1 Department of Mechanical Engineering, Zanjan Branch, Islamic Azad University, Zanjan, IR
2 Department of Mechanical Engineering, Sharif University of Technology, PO Box 11365–9567, Tehran, IR
3 Department of Mechanical Engineering, Majlesi Branch, Islamic Azad University, Isfahan, IR
4 School of Mechanical Engineering, Sharif University of Technology, Tehran, IR
5 Department of Industrial Intelligence Research Group. ACECR, Zanjan Branch, IR
Source
Indian Journal of Science and Technology, Vol 7, No 1 (2014), Pagination: 7-13Abstract
Analyzing contact stress in rails and wheels are very important in mechanical and railway engineering. In this paper, new formulations of the contact stress are presented for two rolling bodies by exponential and power law forms semi- analytically. Innovative elastic wheel-rail contact models and FE Modeling are proposed. The present model assumes the collection of rail and wheel as elastic deformable bodies and needs numerical and novel analytical solutions. Results of this work are close to the Hertz Stress, previous published work and FEM results, in which good agreements are found among the results. So, we can rely on this method and their results. With this approach, suitable results will be achieved. Important novelty of this research is presentation of new analytical formulations in the Power Law (PL) and Exponential Forms (EF) for obtaining contact stress in the rolling bodies.Keywords
Contact Stress, Exponential and Power Law Forms, Hertz’s Elliptic Rolling BodiesFull Text
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- Monfared V. Contact stress analysis in rolling bodies by Finite Element Method (FEM) Statically. J. Mech. Eng. Aut. 2011; 2(2):12–16.
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- Wen Z, Wu L, Li W, Jin X, Zhu M. Three-dimensional elastic–plastic stress analysis of wheel–rail rolling contact. Wear. 2011; 271:426–436.
- Monfared V. A new analytical formulation for contact stress and prediction of crack propagation path in rolling bodies and comparing with finite element model (FEM) results statically. Int. J. Phys. Sci. 2011; 6(15): 3613–3618.
- Arslan MA, Kayabasi O. 3-D Rail–Wheel contact analysis using FEA. Adv. Eng. Softw. 2012; 45:325–331.
- Goodarzian H, Ghobadi M, Farahabadi MA, Mohammadnezhad H, Hejazi SS. An investigation of nonlinear KdV type equations using HPM and VIM. Indian Journal of Science and Technology. 2011; 4:952–956.
- Nikkhoo A, Amankhani M. Dynamic behavior of functionally graded beams traversed by a moving random load. Indian Journal of Science and Technology. 2012; 5(12):3727–3731.
- Haghighi AR, Ghejlo HH, Asghari N. Explicit and implicit methods for fractional diffusion equations with the riesz fractional derivative. Indian Journal of Science and Technology. 2013; 6(7):4881–4885.
- Srinivasan V. Analysis of static and dynamic load on hydrostatic bearing with variable viscosity and pressure. Indian Journal of Science and Technology. 2013; 6(6):4777–4782.
- Anbazhagan R, Satheesh B, Gopalakrishnan K. Mathematical modeling and simulation of modern cars in the role of stability analysis. Indian Journal of Science and Technology. 2013; 6(5):4633–4641.
- Loonker D, Banerji PK. Distributional dual series equations and fractional calculus. Indian Journal of Science and Technology. 2013; 6(1):3892–3897.
- El-Marouf SAA. On some generalizations of the Hilbert-Hardy type integral inequalities. Indian Journal of Science and Technology. 2013; 6(2):4098–4111.
- Simulation of Elasto-plastic Deformations in Composites by Flow Rules
Abstract Views :237 |
PDF Views:0
Authors
Affiliations
1 Department of Mechanical Engineering, Zanjan Branch, Islamic Azad University, Zanjan, IR
2 School of Mechanical Engineering, Sharif University of Technology, Tehran, IR
3 Department of Mechanical Engineering, Majlesi Branch, Islamic Azad University, Isfahan, IR
4 Faculty of Engineering, University of Zanjan, P.O. Box 45195-313, Zanjan, IR
1 Department of Mechanical Engineering, Zanjan Branch, Islamic Azad University, Zanjan, IR
2 School of Mechanical Engineering, Sharif University of Technology, Tehran, IR
3 Department of Mechanical Engineering, Majlesi Branch, Islamic Azad University, Isfahan, IR
4 Faculty of Engineering, University of Zanjan, P.O. Box 45195-313, Zanjan, IR
Source
Indian Journal of Science and Technology, Vol 7, No 2 (2014), Pagination: 180-184Abstract
In this paper, a novel model is proposed to predict stress behavior in the fibrous polymer composites under an applied tensile axial loading. Tangential stress is obtained by simulating between polymeric matrix flow (polyester) and fluid flow. In the other words, creep behavior of the petrochemical material or polymeric resin (matrix) is modeled using fluid flow theory. Furthermore, behavior of the shear stress is predicted by suitable mathematical functions. Finally, important relation is extracted by combining the solid and fluid mechanics formulations.Keywords
Composite, Creep, Fluid Mechanics, Solid MechanicsFull Text