Volume 12 (2022)
Volume 11 (2021)
Volume 10 (2020)
Volume 9 (2019)
Volume 8 (2018)
Volume 7 (2017)
Volume 6 (2016)
Volume 5 (2015)
Volume 4 (2014)
Volume 3 (2013)
Volume 2 (2012)
Volume 1 (2011)

Evaluation of combined hardening model in ratcheting behavior of pressurized piping elbows subjected to in-plane moments

Seyed javid Zakavi; Behzad Shiralivand; Mohammad nourbakhsh

Volume 7, Issue 1 , August 2017, , Pages 57-71


  In this paper the ratcheting behavior of carbon steel(ASTM A106B) and stainless steel(304L) elbows is studied under steady internal pressure and in-plane external moments at frequencies typical of seismic excitations. The finite element analysis with the nonlinear isotropic/kinematic (combined) hardening ...  Read More

Non destructive damage severity estimation in beam using change in extended cross modal strain energy

Mellel Nacim; Ouali Mohammed; Dougdag Mourad; Mohammedi Brahim

Volume 11, Issue 1 , September 2021, , Pages 57-65


  This paper presents an extended cross modal strain energy change method to estimate the severity of damage associated with limited modal data in beam-like structures. This method takes in account the correlation between the analytical modal data and the measured incomplete modal data. A procedure ...  Read More

Nonlinear Solution
Construction of solitary solution and compacton-like solution by the variational iteration method using He's polynomials

M. Matinfar; M. Ghasemi

Volume 2, Issue 2 , June 2013, , Pages 59-68


  Variational Iteration method using He's polynomials can be used to construct solitary solution and  compacton-like solution for nonlinear dispersive equatioons. The chosen initial solution can be determined in compacton-like form or in solitary form with some compacton-like or solitary forms with ...  Read More

Thermodynamics and Cumbustion
Internal combustion engines in cylinder flow simulation improvement using nonlinear k-ε turbulence models

A. A. Mirmohammadi; F. Ommi

Volume 5, Issue 1 , December 2015, , Pages 61-69


  The purpose of this paper is to studying nonlinear k-ε turbulence models and its advantages in internal combustion engines, since the standard k-ε model is incapable of representing the anisotropy of turbulence intensities and fails to express the Reynolds stresses adequately in rotating ...  Read More

Effects of Different Turbulence Models in Simulation of Unsteady Tip Leakage Flow in Axial Compressor Rotor Blades Row

Sarallah Abbasi; Marhamat zienali

Volume 8, Issue 1 , September 2018, , Pages 61-74


  Characteristics of rotor blade tip clearance flow in axial compressors can significantly affect their performance and stable operation. It may also increase blade vibrations and cause detrimental noises. Therefore, this paper is contributed to investigate tip leakage flow in a low speed isolated axial ...  Read More

Heat and Mass Transfer
Free convection in a 3D chamber with local cooling and heating

M. Nasiri; B. Ghasemi

Volume 3, Issue 1 , December 2013, , Pages 63-74


  This paper modeled heating air of a room through examining free convection in a 3D chamber. The chamber had cold and hot sources with Tc and Th temperatures, respectively. Its other walls were adiabatic. This study aimed at predicting effect of temperature difference, displacement of hot and cold sources ...  Read More

Modeling of dynamic cutting forces and cutting characteristics based on the analyzed results of average force-feed rate relationship in milling process

Nhu-Tung Nguyen; Dong Van Pham; Dung Tien Hoang; Cuong Duc Pham

Volume 12, Issue 1 , August 2022, , Pages 63-75


  Cutting force coefficients (CFCs) are the most important factors in the prediction of CFs (CFs) and other machining characteristics (MCs). This study was conducted to model the CFs and MCs in the milling process based on the calculated values of CFCs. From the relationship of average values of CFs and ...  Read More

Dynamic response of a shaft of a Pelton turbine due to impact of water jet

Mahesh Luintel; Tri Ratna Bajracharya

Volume 10, Issue 1 , September 2020, , Pages 73-84


  Performance and reliability of any rotating machine can be studied by proper dynamic analysis of the machine. In this regard, this paper presents the method to study the dynamic response of the shaft of a Pelton turbine due to the impact of water jet. Equations of motion for the bending vibration of ...  Read More

Computational Fluid Dynamics (CFD)
Influence of insertion of holes in the middle of obstacles on the flow around a surface-mounted cube

brahim Rostane; ALIANE KHALED; said Abboudi

Volume 9, Issue 1 , September 2019, , Pages 77-87


  The aim of our study is to analyze the impact of insertion holes in the middle of obstacles on the flow around a surface-mounted cube, In order to do this; we studied four configurations of obstacles in a channel with a Reynods number based on obstacle height ReH = 40000. The hexahedral structured meshes ...  Read More

Dissimilar friction stir lap welding of Al-Mg to CuZn34: Application of grey relational analysis for optimizing process parameters

Saman Khalilpourazary; Reza Abdi Behnagh; Ramezanali Mahdavinejad; Nasib Payam

Volume 4, Issue 1 , December 2014, , Pages 81-88


  This study focused on the optimization of Al—Mg to CuZn34 friction stir lap welding (FSLW) process for optimal combination of rotational and traverse speeds in order to yield favorable fracture load using Grey relational analysis (GRA). First, the degree of freedom was calculated for the system. ...  Read More

Dynamic Response
Effects of asymmetric stiffness on parametric instabilities of rotor

Chandan Kumar; Vikas Rastogi Rastogi

Volume 1, Issue 2 , June 2012, , Pages 119-128


  This work deals with effects of asymmetric stiffness on the dynamic behaviour of the rotor system. The analysis is presented through an extended Lagrangian Hamiltonian mechanics on the asymmetric rotor system, where symmetries are broken in terms of the rotor stiffness. The complete dynamics of asymmetries ...  Read More

Manufacturing Processes
Optimizing turning operation of St37 steel using grey relational analysis

S. Khalilpourazary; P. M. Kashtiban; N. Payam

Volume 3, Issue 2 , June 2014, , Pages 135-144


  Nowadays, in order to reach minimum production cost in machining operations, various optimization methods have been proposed. Since turning operation has different parameters affecting the workpiece quality, it was selected as a complicated manufacturing method in this paper. To reach sufficient quality, ...  Read More

Meshless Numerical Methods
Incompressible laminar flow computations by an upwind least-squares meshless method

M. Y. Hashemi

Volume 5, Issue 2 , June 2016, , Pages 147-160


  In this paper, the laminar incompressible flow equations are solved by an upwind least-squares meshless method. Due to the difficulties in generating quality meshes, particularly in complex geometries, a meshless method is increasingly used as a new numerical tool. The meshless methods only use clouds ...  Read More

Composite Materials
Elastoplastic torsion of hollow FGM circular shaft

Y. Bayat; H. Ekhteraei Toussi

Volume 4, Issue 2 , June 2015, , Pages 165-180


  In many cases, a torsional shaft may be a thick-walled radially inhomogeneous cylindrical object. The hollow shafts made of functionally graded materials (FGMs) are such kind of compositions which were studied in this paper. Cylindrical FG shafts are composed of ceramic and metallic parts with power ...  Read More

Fluid Mechanics
Numerical investigation of vertical and horizontal baffle effects on liquid sloshing in a rectangular tank using an improved incompressible smoothed particle hydrodynamics method

Rahim Shamsoddini

Volume 8, Issue 2 , February 2019, , Pages 175-186


  Liquid sloshing is a common phenomenon in the transporting of liquid tanks. Liquid waves lead to fluctuating forces on the tank wall. If these fluctuations are not predicted or controlled, they can lead to large forces and momentum. Baffles can control liquid sloshing fluctuations. One numerical method, ...  Read More

Effect of six non-Newtonian viscosity models on hemodynamic parameters of pulsatile blood flow in stenosed artery

Mehdi Jahangiri; Mohsen Saghafian; Mahmood Reza Sadeghi

Volume 7, Issue 2 , March 2018, , Pages 199-207


  A numerical study of hemodynamic parameters of pulsatile blood flow is presented in a stenotic artery with A numerical study of hemodynamic parameters of pulsatile blood flow is presented in a stenotic artery with non-Newtonian models using ADINA. Blood flow was considered laminar, and the arterial ...  Read More

Micro and Nano Systems
Thermo-elastic damping and anchor loss in the operational modes of a hemispherical shell resonator

Aylar Khooshehmehri; Abdollah Eslami Majd; Elham Arabsheybani

Volume 12, Issue 2 , February 2023, , Pages 211-224


  The hemispherical resonator gyro (HRG) is a type of precision inertial sensor that has the advantages of direct angle measurement and unlimited dynamic range. The overall accuracy of the HRG is due to the quality of its resonator shell, and improving the performance of resonators requires a proper understanding ...  Read More

Composite Materials
High-velocity impact properties of multi-walled carbon nanotubes/E-glass fiber/epoxy anisogrid composite panels

Hamed Khosravi; Reza Eslami-Farsani

Volume 9, Issue 2 , February 2020, , Pages 235-243


  This work reports the high-velocity impact response of multiscale anisogrid composite (AGC) panels. The aim of the present study is to evaluate the influence of surface-modified multi-walled carbon nanotubes (S-MWCNTs) at different S-MWCNTs contents (0-0.5 wt.% at an interval of 0.1 wt.%) on the high-velocity ...  Read More

Computational Fluid Dynamics (CFD)
Numerical analysis of microchannel based bio-inspired heat sinks with multiple inlet-outlet pairs for cooling square shaped circuits

Kandassamy K; Prabu Balakrishnan

Volume 10, Issue 2 , April 2021, , Pages 345-359


  Heat dissipation in electronic circuits is important to maintain their reliability and functionality. In this work, microchannel based bio-inspired flow field models are proposed and numerically analyzed. The proposed flow fields have single to four inlet-outlet pairs. COMSOL is used to do the numerical ...  Read More

Robust adaptive projection-based control of a constrained quadrotor with two manipulators

Mohammad Mohammadi; Reza Dehghani; Ali Reza Ahmadi

Volume 11, Issue 2 , March 2022, , Pages 351-364


  In this paper, a quadrotor with two manipulators constrained on a straight path is modeled and a robust adaptive controller is proposed for it. Adding two manipulators to quadrotor increases its capabilities and applications in industry. Here, these two manipulators are used to place the robot on a constraint ...  Read More

Hydraulic and Pneumatic Systems
Effect of valve plate silencing grooves on flow and pressure fluctuation in fixed displacement radial piston pump

Lokesh Kumar; Nimai Pada Mandal

Articles in Press, Accepted Manuscript, Available Online from 19 February 2023


  This study focused on the flow and pressure fluctuations of a fixed displacement radial piston pump with a valve plate with silencing grooves, and the effect of the number of pistons (5, 6, and 7) has been investigated. Over the manifolds of the pump, valve plate silencing grooves are regarded as Top ...  Read More

Assessment of different methods for fatigue life prediction of steel in rotating bending and axial loading

J. Amirian; H. Safari; M. Shirani; M. Moradi; S. Shabani

Volume 6, Issue 2 , June 2017, , Pages 57-68


  Generally, fatigue failure in an element happens at the notch on a surface where the stress level rises because of the stress concentration effect. The present paper investigates the effect of a notch on the fatigue life of the HSLA100 (­high strength low alloy) steel which is widely applicable in ...  Read More

Plates and Shells
Effect of boundary conditions on localized instability of the semi-infinite orthotropic plate
Volume 1, Issue 1 , December 2011, , Pages 59-68


  This paper is concerned with an investigation into the localized instability of a thin elastic orthotropic semi-infinite plate. In this study, a semi-infinite plate, simply supported on two edges and under different boundary conditions of clamped, hinged, sliding contact and free on the other edge, is ...  Read More

Composite Materials
Production method of rubber and sulfur FG composites

S. Mohammadi*; F. Abdi

Volume 2, Issue 1 , December 2012, , Pages 63-69


  In the presented work, sulfur concrete and rubber were used for producing functionally graded materials (FGM). The physical and mechanical properties of sulfur concrete and rubber were changed continuously across the thickness. On one side, there was just rubber and, on the other, there was pure sulfur; ...  Read More

Resonant frequency of bimorph triangular V-shaped piezoelectric cantilever energy harvester

Rouhollah Hosseini; Mohsen Hamedi

Volume 6, Issue 1 , December 2016, , Pages 65-73


  The concept of “energy harvesting” is to design smart systems to capture the ambient energy and to convert it to usable electrical power for supplying small electronics devices and sensors. The goal is to develop autonomous and self-powered devices that do not need any replacement of traditional ...  Read More