Research Paper Heat and Mass Transfer
Free convective heat and mass transfer of magnetic bio-convective flow caused by a rotating cone and plate in the presence of nonlinear thermal radiation and cross diffusion

M. Gnaneswara Reddy; Sandeep N

Volume 7, Issue 1 , August 2017, Pages 1-21

  This article explores the heat and mass transfer behaviour of magnetohydrodynamic free convective flow past a permeable vertical rotating cone and a plate filled with gyrotactic microorganisms in the presence of nonlinear thermal radiation, thermo diffusion and diffusion thermo effects. We presented ...  Read More

Research Paper Control
Optimizing control motion of a human arm With PSO-PID controller

Mohammad Hossein Bayati Chaleshtari; Elahe Norouzi; Habib Ahmadi

Volume 7, Issue 1 , August 2017, Pages 23-34

  Functional electrical stimulation (FES) is the most commonly used system for restoring function after spinal cord injury (SCI). In this study, we used a model consists of a joint, two links with one degree of freedom, and two muscles as flexor and extensor of the joint, which simulated in MATLAB using ...  Read More

Research Paper Heat and Mass Transfer
Unsteady MHD nonlinear radiative squeezing slip-flow of Casson fluid between parallel disks

Sathish Kumar M; Sandeep N; Rushi Kumar B

Volume 7, Issue 1 , August 2017, Pages 35-45

  Effect of nonlinear thermal radiation on the unsteady magnetohydrodynamic slip flow of Casson fluid between parallel disks in the presence of thermophoresis and Brownian motion effects are investigated numerically. A similarity transformation is employed to reduce the governing partial differential equations ...  Read More

Research Paper Fluid Mechanics
Investigation of fluid flow and heat transfer in tube hot metal gas forming process

Javad Shahbazi Karami; GH. Payganeh

Volume 7, Issue 1 , August 2017, Pages 47-56

  In this study, hot metal gas forming process of AA6063aluminumtubeis studied with a focus on heat transfer of both fluid and solid phases numerically. An experimental study is simultaneously conducted to validate the numerical method. Some of the most important outputs of the present study, are velocity ...  Read More

Research Paper Vibration
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

Research Paper Forming
An Experimental Study on the process parameters of Incremental Forming of Explosively-Welded Al/Cu Bimetal

Mohammad Honarpisheh; Ahmad Gheysarian

Volume 7, Issue 1 , August 2017, Pages 73-83

  Single point incremental sheet metal forming is a sheet metal forming process that forms products without the complex dies and tools with low cost. In this study, the incremental sheet metal forming process has been experimentally investigated on the explosively-welded Al/Cu bimetal sheets. Also, the ...  Read More

Research Paper Vibration
LQG vibration control of sandwich beams with transversely flexible core equipped with piezoelectric patches

Nima Nadirian; Hasan Biglari; Mohammad Ali Hamed

Volume 7, Issue 1 , August 2017, Pages 85-97

  The purpose of this paper is control of simply supported flexible core sandwich beam's linear vibration equipped with piezoelectric patches under different loads. The effects of external forces imposed on sandwich beam can be reached to a minimum value by designing an appropriate controller and control ...  Read More

Research Paper Composite Materials
On the flexural properties of multiscale nanosilica/E-glass/epoxy anisogrid-stiffened composite panels

Reza Eslami-Farsani; Hamed Khosravi

Volume 7, Issue 1 , August 2017, Pages 99-108

  In the present study, multiscale nanosilica/E-glass/epoxy anisogrid composite panels were investigated for flexural properties as a function of nanosilica loading in the matrix (0, 1, 3 and 5 wt.%). The surface of the silica nanoparticles was firstly modified with 3-glycidoxypropyltrimethoxysilane (3-GPTS). ...  Read More

Research Paper Micro and Nano Systems
The effect of small scale and intermolecular forces on the nonlinear Pull-in instability behavior of nano-switches using differential quadrature method

Yaghoub Tadi Beni; Seyyed Mohammad Fatemi

Volume 7, Issue 1 , August 2017, Pages 109-125

  Using differential quadrature method (DQM), this study investigated pull-in instability of beam-type nano-switches under the effects of small-scale and intermolecular forces including the van der Waals (vdW) and the Casimir forces. In these nano-switches, electrostatic forces served as the driving force, ...  Read More

Research Paper Nonlinear Solution
An efficient analytical solution for nonlinear vibrations of a parametrically excited beam

saeed mahmoudkhani

Volume 7, Issue 1 , August 2017, Pages 127-136

  An efficient and accurate analytical solution is provided using the homotopy-Pade technique for the nonlinear vibration of parametrically excited cantilever beams. The model is based on the Euler-Bernoulli assumption and includes third order nonlinear terms arisen from the inertial and curvature nonlinearities. ...  Read More