Volume 15 (2022)
Volume 14 (2021)
Volume 13 (2020)
Volume 12 (2019)
Volume 11 (2018)
Volume 10 (2017)
Volume 9 (2016)
Volume 8 (2015)
Volume 7 (2014)
Volume 6 (2013)
Volume 5 (2011-2012)
Volume 3 (2009-2010)
Volume 2 (2008-2009)
Volume 1 (2007-2008)
1. Calculation of Elastic Modulus of Reinforced Nanocomposites by Carbon Nanotubes using Finite Element Method, Averaging Approach and Micromechanics Relations

Mahmood Mehrdad Shokrieh; Saeed Niakan

Volume 4, Issue 1 , December 2010

  Carbon nanotube (CNT), due to extraordinary mechanical properties, is an effective Stiffener as reinforcement in resin for fabricating of nanocomposites. It is demonstrated by adding a small amount of CNT to the matrix, the elastic modulus of matrix increases remarkably. In this paper, the elastic modulus ...  Read More

2. Prediction of the Subsurface Crack Growth Lifetime in Railroad Wheel of the Iranian Railway System

Rahmatollah Ghajar; Javad Alizadeh

Volume 4, Issue 1 , December 2010

  In the last decade, decrease of the wear rate, increase in the axel load, and the velocity of the trains have changed the main damage mechanism of railway wheels from wear to rolling contact fatigue (RCF). RCF may lead to surface and subsurface cracks. The interaction between wear and RCF, removes the ...  Read More

3. Control and Guidance of an Underwater Robot via Fuzzy Control Method

Mehdi Ghanavati; Afshin Ghanbarzadeh

Volume 4, Issue 1 , December 2010

  In this project guidance and control of underwater robot, including three engines and propeller attached to it, by Fuzzy control has been investigated. Fuzzy control is done based on human experience and requiered laws. The robot can also be controlled and guided by the user. This robot may be used in ...  Read More

4. Taylor-Couette Flow Instabilities in Journal Bearings

Ahmad Sedaghat; Saeed Jafari; Iman Rouholamin

Volume 4, Issue 1 , December 2010

  In industry, flow instabilities are important in journal bearings at high rotational speeds. For inviscid flows between two rotating coaxial cylinders, an instability criterion was introduced by Taylor-Couette. However, viscosity may play as stabilizer or destabilize in such flows. In this work, stability ...  Read More

5. Study of Metallurgical Properties Effects and Effective Parameters on Fracture Bio-Medical Stainless Steel 316L of Human's Body

MohamadHosein Mirghasemi; MohamadReza Salmani

Volume 4, Issue 1 , December 2010

  In recent years, more attention is paid to stainless Steel 316L as fracture plate and fixation in human's body. Present studies are focused on surface and metallurgical properties of this material. Biocompatibelity of this material and its superior mechanical properties has made it the most demanded ...  Read More

6. Investigation into the Importance of Pre-Design Procedure in Vibration Absorbers Installations

Rouhollah Hoseini; Hamzeh Salehipour

Volume 4, Issue 1 , December 2010

  In this work an improved method for designing a linear vibrational absorber, excited by random vibrations is presented and analyzed. First, analytical expressions, for non-stationary white noise accelerations, are derived. The criterion is different from the conventional criteria, used for structural ...  Read More

7. Investigation of Surface Roughness on Aerodynamic Characteristics of Missiles

Saeed Daneshmand

Volume 4, Issue 1 , December 2010

  Nowadays, we live in a world which quality, speed, accuracy and cost are the most important parameters in parts' design and manufacturing. Due to the complexity of part manufacturing, traditional and nontraditional manufacturing techniques are used. Aerodynamic tests usually requires one or several models ...  Read More