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14
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Introduction
Nazhad Hussein currently works as Dean of Engineering college in Salahaddin University - Erbil. Their most recent publication is 'EFFECT OF HEAT INPUT AND ENVIRONMENTAL TEMPERATURE ON THE WELDING RESIDUAL STRESSES USING ANSYS APDL PROGRAM COMPARISON WITH EXPERIMENTAL RESULTS'.
Publications
Publications (14)
Nonlinear torsional vibration of nanorods embedded in an elastic medium under three-dimensional thermal stresses is investigated in this study. The scale effect is introduced to the equation of motion using the nonlocal theory. The nanorods are under the effect of a three-dimensional thermal environment. The elastic medium is modeled by infinite ro...
The effect of thermal stresses on the torsional vibration of non, single, and double-cracked nanorods surrounded by an elastic medium is investigated. The differential constitutive relation of the nonlocal theory is applied to the motion equation. Three-dimensional linear thermal strains raised from the thermal stresses are derived using nonlinear...
This paper presents new parameters for damping improvement in F2
MC tubes performance as tunable vibration
absorbers. They offer very good performance with environments having susceptibility to high frequency vibration noise. This
study highlights the behavior of changing some parameters of F2
MC tubes which never have been studied before. These...
This paper investigates free vibration of cracked single-walled carbon nanotubes modelled as Timoshenko nanobeams under axial thermal load. The main objective of this work is a deep, true, and precise formulation to analyse truly the thermal effects on the Timoshenko nanobeam model. Nonlocal elasticity theory is applied to Timoshenko beam model. It...
This paper studies torsional vibration of carbon nanotubes/nanorods embedded in an elastic medium under thermal stresses. Nonlocal theory is applied to the nanorod equations. The thermal stresses act in axial and other directions, and their amounts vary as temperature changes. The elastic medium is modeled as a rotational spring around the nanorod....
The purpose of this paper is to present a new method to establish a kinematic model for different
manipulators, whose can be simulate the move in a two-dimensional workspace.The model is
applied and implemented to four robot arm manipulators witha different DOF.The first step of
modelling a robot is establishing its mathematical model parameters. I...
Nonlinear vibration of nanobeams embedded in the linear and nonlinear elastic materials under magnetic and temperature effects is investigated in this study. Von Karman’s strain–displacement relation is applied to a nonlocal Euler–Bernoulli beam model. Equation of motion is derived using Hamilton’s principle. Galerkin’s method is applied to decompo...
This study investigates thermal effect on free vibration of cracked single-walled carbon nanotubes (SWCNTs) embedded in an elastic medium under different boundary conditions. The nonlocal Euler–Bernoulli beam equations are derived using the Hamiltonian principle. The interaction of the elastic medium and the SWCNT is modeled using Winkler-type foun...
Fluidic Flexible Matrix Composite (F2MC) tubes are promising fiber reinforced tubes, they can passively provide
damping and vibration absorption. This study focuses on analyzing F2MC tube’s response to add damping to cantilever
structures. A novel cantilever beam vibration absorber encompassing different models of a patch of F²MC tubes has been
exa...
Flexible Matrix Composite (F 2 MC) tubes are emerging technologies, which can provide lightweight, compact vibration control when attached to a vibrating structure. This work presents a new model for solving a problem of vibrations in cantilever beams with attaching F 2 MC tubes as patches that provide passive vibration control. Mathematical model...
The aim of this paper is to investigate the effect of increase in the value of heat input due to change in the welding speed and its influence on residual stress distribution in steel weldments at different environmental temperature. The residual stresses were determined by FE simulation using ANSYS APDL program and hole-drilling strain gage method...
Purpose
The purpose of the paper is to characterize the fatigue behavior, such as fatigue strength, and stress intensity factor values of aluminum alloy type 2024‐T3, using only a round specimen. The aim in this study is to interrelate the fatigue behavior directly with the microstructure, as an attempt to reduce other parameters that might be asso...