بی مایند
Effect of exponentially variable viscosity and permeability on Blasius flow of Carreu nanofluid ...
◷ تاریخ انتشار: 1397/9/19 | ساعت: 13:09
The present investigation brings attention regarding the effect of exponential variable viscosity modeled by Vogel and variable permeability on stagnation point flow of Carreu nanofluid over an electr
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On The Use of Acoustic Emission and Digital Image Correlation for Welded Joints Damage ...
◷ تاریخ انتشار: 1397/9/19 | ساعت: 13:09
A series of tests has been conducted to investigate fatigue damage characterisation in corroded welded steel plates using structural health monitoring (SHM) techniques. AE is a non-destructive testing (NDT) technique with potential applications for locating and monitoring fatigue cracks in service. ...
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A New Quasi-3D Model for Functionally Graded Plates
◷ تاریخ انتشار: 1397/9/19 | ساعت: 13:09
This article investigates the static behaviour of functionally graded plate under mechanical loads using a new quasi 3D model. The theory is designated as fifth-order shear and normal deformation theo
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Bending and free vibration analysis of functionally graded plates via optimized non-polynomial ...
◷ تاریخ انتشار: 1397/9/19 | ساعت: 13:09
Optimization concept in the context of shear deformation theories was bo for the development of accurate models to study the bending problem of structures. The present paper seeks to extend such app
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Thermoelastic vibration of temperature-dependent nanobeams due to rectified sine wave ...
◷ تاریخ انتشار: 1397/9/19 | ساعت: 13:09
In this paper, the second type of Green and Naghdi's thermoelasticity theory is applied to present the vibration of a nanobeam subjected to rectified sine wave heating based upon the nonlocal thermoelasticity theory. Both Young's modulus and thermal conductivity are considered to be linear functions...
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Experimental Study on the surface modification by Electrical Discharge Process
◷ تاریخ انتشار: 1397/9/19 | ساعت: 13:09
The creation of modified layer on metals surfaces by the use of new methods is one of the methods in surface engineering which can improve the surface mechanical properties. Electrical discharge proce
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Accuracy Assessment of Ultrasonic C-scan and X-ray radiography Methods for Impact Damage ...
◷ تاریخ انتشار: 1397/9/19 | ساعت: 13:09
The present study introduces two quantitative parameters for comparing the accuracy of ultrasonic C-scan testing and X-ray radiography methods in damaged area detection under low-velocity impact in po
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Fractional thermoelasticity model of a 2D problem of mode-I crack in a fibre-reinforced thermal ...
◷ تاریخ انتشار: 1397/9/19 | ساعت: 13:09
A model of fractional-order of thermoelasticity is applied to study a 2D problem of mode-I crack in a fibre-reinforced thermal environment. The crack is under prescribed distributions of heat and pressure. Normal mode analysis is applied to deduce exact formulae for displacements, stresses, and temp...
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Analysis of fluid dynamics and heat transfer in a rectangular duct with staggered baffles
◷ تاریخ انتشار: 1397/9/19 | ساعت: 13:09
This computational fluid dynamic analysis attempts to simulate the incompressible steady fluid flow and heat transfer in a solar air cha el with wall-mounted baffles. Two ꞌSꞌ-shaped baffles, having d
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NURBS-BASED ISOGEOMETRIC ANALYSIS METHOD APPLICATION TO MIXED-MODE COMPUTATIONAL FRACTURE MECHANICS
◷ تاریخ انتشار: 1397/9/19 | ساعت: 13:09
An interaction integral method for evaluating mixed-mode stress intensity factors (SIFs) for two dimensional crack problems using NURBS-based isogeometric analysis method is investigated. The interact
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Effect of thermal conductivity and emissivity of solid walls on time-dependent turbulent ...
◷ تاریخ انتشار: 1397/9/19 | ساعت: 13:09
Conjugate turbulent free convection with thermal surface radiation in a rectangular enclosure bounded by walls with different thermophysical characteristics in the presence of a local heater has been
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Experimental study of the residual stresses in girth weld of natural gas transmission pipeline
◷ تاریخ انتشار: 1397/9/19 | ساعت: 13:09
In order to achieve integrated condition in the girth welding of high pressure natural gas transmission pipelines, the weld zones and its surrounding area should have homogeneous mechanical properties
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A novel approach for Korteweg-de Vries equation of fractional order
◷ تاریخ انتشار: 1397/9/19 | ساعت: 13:09
In this paper, we utilize local fractional variational iteration method (LFVIM) and local fractional series expansion method (LFSEM) to obtain approximate solutions for Korteweg-de Vries equation (KdVE) within local fractional derivative operators (LFDOs). The efficiency of the considered methods is...
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Numerical investigation of the effect of bubble-bubble interaction on the power of propagated ...
◷ تاریخ انتشار: 1397/9/19 | ساعت: 13:09
The study of bubble dynamics, especially the interaction of bubbles has drawn considerable attention due to its various applications in engineering and science. Meanwhile, the study of the oscillation
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Elastic-Plastic Analysis of Bending Moment – Axial Force Interaction in Metallic Beam of T-Section
◷ تاریخ انتشار: 1397/9/19 | ساعت: 13:09
This paper derives kinematic admissible bending moment – axial force (M-P) interaction relations for mild steel by considering elastic-plastic idealisations. The interaction relations can predict strains, which is not possible in a rigid, perfectly plastic idealization. The relations are obtained fo...
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Magnetohydrodynamic Free Convection Flows with Thermal Memory over a Moving Vertical Plate in ...
◷ تاریخ انتشار: 1397/9/19 | ساعت: 13:09
The unsteady hydro-magnetic free convection flow with heat transfer of a linearly viscous, incompressible, electrically conducting fluid near a moving vertical plate with constant heat is investigated
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Generalized 2-unknown’s HSDT to study isotropic and orthotropic composite plates
◷ تاریخ انتشار: 1397/9/19 | ساعت: 13:09
This paper introduces a generalized 2-unknown’s higher order shear deformation theory (HSDT) for isotropic and orthotropic plates. The well-known Shimpi’s two-unknown's HSDT is reproduced
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Buckling and postbuckling of concentrically stiffened piezo-composite plates on elastic foundations
◷ تاریخ انتشار: 1397/9/19 | ساعت: 13:09
This paper presents the modeling and analysis for the buckling and postbuckling behavior of sandwich plates subjected to thermal and mechanical loads. The lay-up configurations of plates are laminated
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Topology Optimization of the Thickness Profile of Bimorph Piezoelectric Energy Harvesting Devices
◷ تاریخ انتشار: 1397/9/19 | ساعت: 13:09
Due to developments in Additive Manufacturing, the production of piezoelectric materials with complex geometries is becoming viable, enabling the manufacturing of thicker harvesters. Thus, in this article a piezoelectric harvesting device is modelled as a bimorph cantilever beam with series co ectio...
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On the buckling response of axially pressurized nanotubes based on a novel nonlocal beam theory
◷ تاریخ انتشار: 1397/9/19 | ساعت: 13:09
In the current study, buckling analysis of single-walled carbon nanotubes (SWCNT) on the basis of a new refined beam theory has been analyzed. The SWCNT is modeled as an elastic beam subjected to unidirectional compressive loads. To achieve this aim, the new proposed beam theory has only one unknown...
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