Volume 15 (2022)
Volume 14 (2021)
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 4 (2010-2011)
Volume 3 (2009-2010)
Volume 2 (2008-2009)
Volume 1 (2007-2008)
1. A New Optimal Method for Calculating the Null Space of a Robot using NOC Algorithm; Application on Parallel 3PRS Robot

Hami Tourajizadeh; oveas gholami

Volume 13, Issue 1 , March 2020, Pages 1-15

  In this paper, a new optimal method for modelling of a 3PRS robot is proposed according to NOC algorithm. An optimal method of selecting the generalized coordinate is presented and a new algorithm of extracting the null space of over and under constrained robots is proposed through which a lower amount ...  Read More

2. High-Velocity Compaction of Aluminum Powder by Gas Detonation Forming Technique

Tohid Mirzababaie Mostofi; Mostafa Sayah Badkhor; Hashem Babaei

Volume 13, Issue 1 , March 2020, Pages 17-29

  In this paper, a large-scale experimental study has been conducted in order to evaluate the high-velocity compaction of aluminum powder using Gas Detonation Forming (GDF) processing technique. In this series of experiments, the effect of the distribution of grain particle size, initial powder mass, and ...  Read More

3. Theoretical Predictions on Mechanical Properties of Functionally Graded Epoxy/Clay Nanocomposites

Mahdi Karami Khorramabadi

Volume 13, Issue 1 , March 2020, Pages 31-37

  In this paper, the theoretical predictions of mechanical properties of functionally graded and uniform distributions Epoxy/clay nanocomposites are presented. The specimens were prepared for uniformly distribution of nanoclay with different nano particles weight percent (pure, 3 wt%, 5 wt% and 7 wt%) ...  Read More

4. Numerical Study of Non-Gray Radiative Heat Transfer in a T-shaped Furnace

Amin Al Taha; MohamadMehdi Keshtkar

Volume 13, Issue 1 , March 2020, Pages 39-49

  Radiative heat transfer has an important role in many industrial equipment; i.e. furnaces, boilers and high temperature heat exchangers. In this paper, combination of Weighted Sum of Gray Gas Method (WSSGM) and Discrete Ordinate Method (DOM) are used together in order to numerically study the radiative ...  Read More

5. Micro-Finite Element Model to Investigate the Mechanical Stimuli in Scaffolds Fabricated via Space Holder Technique for Cancellous Bone

Sayed Alireza Hashemi; Saeid Esmaeili; Mazyar Ghadirinejad; Saeed Saber-Samandari; Erfan Sheikhbahaei; Alireza Kordjamshidi; Amirsalar Khandan

Volume 13, Issue 1 , March 2020, Pages 51-58

  In Osteoporosis, bone mechanical strength decreases and as a result, the risk of bone fracture increases. Osteoporosis is also referred as a "silent illness" since it usually develops asymptomatic until it breaks a long bone, like the femur. In recent years, porous scaffolds have been utilized to repair ...  Read More

6. Numerical Study of Microbeam with Geometric Discontinuity Under Electrostatic Load using Strain Gradient Theory

Hadi Hamidizadeh; Mahmoud Mousavi Mashhadi; Younes Mohammadi

Volume 13, Issue 1 , March 2020, Pages 59-68

  In this work, the pull in analysis of microbeam with geometric discontinuity for two different boundary conditions has been investigated. Boundary conditions are considered as Clamped-Free (CF) and Clamped-Clamped (CC). The governing equations are transformed into non-dimensional form and then solved ...  Read More

7. Optimal Process Parameters in ECMAP of Al−3% Mg Alloy Strips

Peyman Mashhadi Keshtiban

Volume 13, Issue 1 , March 2020, Pages 69-81

  Equal channel angular pressing (ECAP) is one of the most appealing severe plastic deformation (SPD) methods. The proposed equal channel multi angular pressing (ECMAP) process enhances the efficiency of traditional ECAP technique with decreasing the process time. In this study, a complete investigation ...  Read More

8. Thermal Loads and Surface Quality Evaluation in Machining of Hardened Die Steel under Dry and Cryogenic Machining

Farshid Jafarian; Emad Mohseni

Volume 13, Issue 1 , March 2020, Pages 83-90

  AISI H13 die steel is widely used in different industries because of its especial properties. During the machining of hard materials, some of the mechanical properties of the material are changed due to the generation of intensive thermo-mechanical loads and plastic deformation into the workpiece. Controlling ...  Read More