Computations and Simulations in Mechanical Science
مرور بر اساس
ارسال های اخیر
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Investigating the Factors Affecting the Tube Hydroforming (THF) under Impact Loading
(Islamic Azad University, Bandar Anzali Branch, 2023-04-01)The hydroforming process is used to form pieces that are transformed into the internal shape of the designed mold under fluid pressure. Adopting the optimal loading path is one of the most important points related to this ...
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Static analysis of cracked Timoshenko beam resting on elastic foundation using Galerkin’s method
(Islamic Azad University, Bandar Anzali Branch, 2018-09-01)In this paper, the static behavior of a cracked Timoshenko beam resting on an elastic foundation is investigated through the approximate method of Galerkin. The crack is simulated using a rotational spring whose stiffness ...
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Biaxial Buckling of Single-Layer Graphene Sheet Based on Nonlocal Plate Model and Molecular Dynamics Simulation
(Islamic Azad University, Bandar Anzali Branch, 2018-09-01)This paper considers biaxial buckling behavior of single-layered graphene sheets (SLGSs) using molecular dynamics (MD) and nonlocal elasticity theory. Based on the MD simulations, Large-scale Atomic/Molecular Massively ...
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Thermomechanical Analysis of FGM-Coated Centrifugal Blades of Gas Turbine Using Finite Element Method
(Islamic Azad University, Bandar Anzali Branch, 2018-09-01)With their special airfoil geometry, the blades adopted in hot section of gas turbines are highly susceptible to the damages induced by extreme thermal and mechanical stresses. The blades are usually made of super expensive ...
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Numerical and experimental analysis of buckling and post buckling in cylindrical shells with circular cutout
(Islamic Azad University, Bandar Anzali Branch, 2018-09-01)Buckling in cylindrical shells has been a major issue for researchers for more than a century. Cylindrical shells are often used in the production of aircrafts, racks, boilers, pipelines, cars, and some submarine structures. ...
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Pareto Optimal Tuning of Adaptive PID Controller using Model Predictive Strategy
(Islamic Azad University, Bandar Anzali Branch, 2018-09-01)In this paper, the gains of PID controller are obtained online using Model Predictive Control (MPC). In fact MPC tries to tune the PID-controller parameters by predicting system's behavior in some time steps ahead. In this ...
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Investigating Plastic Behavior of Pre- shock loaded 7075-T6 Aluminum Alloy with Concentrating on Lode Angle and Traxiality
(Islamic Azad University, Bandar Anzali Branch, 2018-09-01)In this paper, the prediction of fracture in 7075-T6 aluminum alloy is considered with focus on Lode Angle and Triaxiality effects. uniaxial stress-strain curve of 7075-T6 aluminum alloy are investigated experimentally for ...
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Elastoplastic dynamic buckling of rectangular plates subjected to impulsive loading with various boundary conditions using deformation and incremental theory of plasticity
(Islamic Azad University, Bandar Anzali Branch, 2018-03-01)The elastoplastic dynamic buckling of a thin rectangular plate with different boundary conditions subjected to uni- and biaxial compression sinusoidal pulse functions is investigated employing Galerkin method on the basis ...
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A Fuzzy Logic Approach for Predicting Effect of Thermal Aging on Surface Hardness of Carbon Fiber Reinforced Composites
(Islamic Azad University, Bandar Anzali Branch, 2018-03-01)In the present work, a fuzzy logic approach was used in order to determine the effect of thermal aging on the surface hardness of phenolic resin reinforced by woven carbon fibers (CFP). For this purpose, the specimens ...
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Surface stress size dependency in postbuckling characteristics of nanoshells under lateral and hydrostatic pressures
(Islamic Azad University, Bandar Anzali Branch, 2018-03-01)The prime aim of the current study is to predict the nonlinear buckling and postbuckling behavior of cylindrical nanoshells subjected to two different radial compressive loads including lateral pressure and hydrostatic ...
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Perfect position and oscillation frequency of nanosectors orbiting inside carbon nanotori
(Islamic Azad University, Bandar Anzali Branch, 2018-03-01)This paper aims to develop a new semi-analytical method based on the continuum approximation and Lennard-Jones (LJ) potential function to investigate the potential energy and van der Waals (vdW) interaction force between ...
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On the effect of the uniaxial strain on the thermal conductivity coefficient of the nitrogen-doped graphene nanosheets
(Islamic Azad University, Bandar Anzali Branch, 2018-03-01)In this paper, using molecular dynamics simulations, the thermal properties of the nitrogen-doped graphene sheets are investigated. For this purpose, the LAMMPS software is employed. To study the effect of the atomic ...
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Experimental and numerical analysis of dynamic plastic behavior of long metallic bars under axial impact
(Islamic Azad University, Bandar Anzali Branch, 2018-03-01)In this paper, dynamic behavior of long metallic bars subjected to axial impact is investigated experimentally and numerically. Bars made of steel without and with attached mass are impacted against a rigid wall. Experimental ...



