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Journal of Applied and Computational Mechanics
Scopus
ISSN 2383-4536 · Shahid Chamran University of Ahvaz · 942 articles in the index
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Effect of Slot Jet on Heat Transfer and Flow Characteristics of Microchannel Heat Sink Partially Filled with Porous Media at High Heat Flow Density and Conjugate Heat Transfer Boundary Conditions
In this paper, a three-dimensional mathematical model of microchannel heat sink slot jet partially filled with porous media coupled heat transfer is constructed with the local thermal non-equilibrium (LTNE) model and the Darcy-Forchheimer model, taking into account the buoyancy effect and the…
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Application of Acoustic Emission for Diagnostic Pile Penetration by Consideration of Soil Particle Breakage
The possibility of passive monitoring on penetrating structural piles through acoustic signals is presented. The purpose of this study is first to provide deeper understanding on different situations against pile penetration into the soils through insights of acoustic emission technique. During…
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Effects of Porosity and Nonlocality on the Damped Vibration Behaviors of Functionally Graded Rectangular Nanoplates on General Viscoelastic Medium
This article presents an analytical framework for size-dependent damped vibration analysis of functionally graded nanoplates considering the effects of porosity. Two schemes of even and uneven porosity distributions are examined. The general viscoelastic foundations consist of four parameters that…
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Free Vibration Analysis of BDFG-GPLs Plates Partially Supported by Kerr Foundation using a Finite Element Procedure
The main objective of this article is to examine the free vibration of bi-directional functionally graded graphene platelets reinforced plates (so-called BDFG-GPLs plates) partially supported by Kerr foundation (KF). The governing equation of motion is derived from Hamilton's principle. A finite…
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Longitudinal Fracture Analysis of Continuously Inhomogeneous Beams Undergoing General Planar Motion
This paper is devoted to longitudinal fracture in continuously inhomogeneous non-linear elastic beam structures which undergo general planar motion. First, a unified approach for treatment of the problem is presented assuming law of planar motion in general form. The acceleration of an arbitrary…
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DoE Optimization of Applied Pressure and Mold Size in Manufacturing Homogeneous Alumina Samples by SPS Process under 1000A Current
Spark plasma sintering (SPS) presents advantages over conventional sintering methods, notably high heating rates and reduced residence times. However, SPS suffers from uneven temperature and stress distributions due to suboptimal sintering parameters, such as uniaxial pressure and mold dimensions…
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Analysis of the Effects of Time Periods and Fractal Patterns on Heat Flow in Porous Materials
The proposed mathematical model applies non-integer derivative orders to study how porosity influences a generalized thermoelastic medium while utilizing improved multi-phase delays framework. The system consists of a porous homogenous isotropic domain where the volume percent shows two-dimensional…
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A Scale-Adaptive TENO Scheme based on a New Smoothness Indicator
This work presents a new smoothness indicator for the Targeted Essentially Non-Oscillatory (TENO) scheme based on the generalized undivided difference method. Furthermore, to prevent excessive numerical dissipation in the low and intermediate wavenumbers, the threshold regulating parameter in the…
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Numerical Analysis of Two Side-by-Side Flexible Filaments in Shear Flow and Orbit Class Prediction using Immersed Boundary Method and Machine Learning Techniques
This study utilizes a second-order immersed boundary method (IBM) for investigating the orbital dynamics of two flexible, inextensible filaments placed side-by-side in low-Reynolds-number shear flows. A parametric analysis explores the effects of filament length, bending rigidity, and shear-strain…
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Interference of Thermal and Mechanical Waves in a Functionally Graded Hyperelastic Model Exhibits both Temperature and Coordinate Dependencies
This work presents advanced models to investigate the interaction between thermal and mechanical waves in near-incompressible functionally graded materials simultaneously subjected to mechanical and thermal loads. Both the position within the material and the temperature at each point affect the…
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Stochastic Velocity Assessment of Robertson-Stiff Fluids in Rectangular Ducts under Uncertain Parameters and Boundary Conditions
This study presents a pioneering stochastic modelling and analysis of Robertson-Stiff (R-S) fluid flow in a rectangular duct, addressing a critical gap in non-Newtonian fluid mechanics by quantifying velocity uncertainty under three distinct scenarios: uncertain dimensionless viscosity (Case I)…
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Thermal Storage Improvement through the Melting Process of PCMs in Triplex Tube Heat Exchangers with Different Fin Materials
This study explores the melting dynamics of paraffin wax, a phase change material (PCM), within a Triplex Tube Heat Exchanger (THEX) equipped with internal fins, using numerical simulations. The primary objective is to evaluate the impact of fin materials—aluminum, copper, carbon, and steel—on the…
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On the Dynamics of Charged Particle Close to Equatorial Plane of Earth in the Störmer Problem: Cylindrical Case of Dipole Magnetic Field
The classical Störmer problem (dynamics of charged particle in Earth’s magnetic field) has been fully considered hereby since the first part of such problem has been successfully solved recently for the case of dipole magnetic field associated with the spherical case (of a magnetized sphere). New…
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Wireless-Controlled Capsule Robots: A Novel Design and Experimental Validation
Wireless capsule robots represent a rapidly advancing area of biomedical engineering, with various designs targeting challenges in movement control, power transmission, and functionality within the gastrointestinal tract. This paper presents a wireless-controlled capsubot by integrating an internal…
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Temperature Influence on the Creep Behavior of a Carbon Fiber/Polyetheretherketone Composite
Carbon/PEEK Fiber Composites materials have, generally, a viscoelastic behavior and the mechanical properties are time dependent. These materials have gained an explosive use in the last decades, hence the need to determine their mechanical properties as accurately as possible. Generally, a…
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Numerical Investigation of Double Low-Velocity Impact and Post-Impact Compression Behavior in Laminated Composites
Low-velocity impact can significantly reduce the structural integrity of the laminated composites, and it can be exacerbating the damage if it occurs repeatedly. In this study, double low-velocity impacts are numerically applied on the laminates by utilizing ply-level based modeling strategy, which…
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Impact of Spatial Configuration on Fluid Flow through a Microchannel with Fin Pin Array
Enhancing the efficiency of microheat exchangers with channel characteristic dimensions of up to 100 microns represents a critical challenge for advancing cooling systems in microelectronics. Approaches to address this challenge can be categorized into several key areas: optimizing geometry and…
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A Simple Reliable Hybrid Method Based on Taylor Series for Generalized Local Fractional Nonlinear Singular Differential Equations
This paper proposes a local fractional derivative of order α when α > 1 ([1]). We also propose a simple method and refer to it as the hybrid Taylor series method, which solves a class of generalized local fractional systems of singular differential equations subject to both initial and boundary…
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High-Order Algorithm for Simulating Heat Transfer in Complex Yield-Stress Fluid Flows
This paper examines the numerical simulation of non-isothermal flows of Herschel-Bulkley fluids under stick-slip boundary conditions and a constant wall temperature. To solve the governing equations, we propose a decoupled transient solution algorithm utilizing high-order time-stepping methods…
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Mode I and Mode II Fracture Toughness of Fe-based Amorphous Materials: Theoretical and Empirical Investigations
This study investigates a diagonally loaded square plate specimen's fracture toughness. The specimen has central pre-crakes under loading modes I and II. Iron-based amorphous material with high strain-hardness (200 to 500 MPa) and malleability (10% to 50% elongation) is used for making these…