Davood Poorveis

Davood Poorveis
Shahid Chamran University of Ahvaz | scu · Department of Civil Engineering (Ahvaz)

PhD

About

20
Publications
3,800
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293
Citations
Citations since 2017
13 Research Items
277 Citations
20172018201920202021202220230102030405060
20172018201920202021202220230102030405060
20172018201920202021202220230102030405060
20172018201920202021202220230102030405060

Publications

Publications (20)
Technical Report
Full-text available
This article presents an experiment-based study on the effect of low contents (1-2 kg/m 3) of 11 polypropylene short fibers of 6 and 12-mm length on energy absorption capacity and durability of concrete. The area under the stress-strain curve up to strain at maximum load and the water permeability obtained from stress-strain curves and the water pe...
Article
In this paper the effects of position and shape of cutout on the buckling load of composite cylindrical panel under compressive load is investigated. The laminated cylindrical panel with an arbitrary cutout shape is simulated by the spline finite strip method. The first order shear deformation theory is considered in this study. Using a linear buck...
Article
While the wheel flat is an asymmetrical phenomenon in the railway, majority of researches have used two-dimensional models in the investigation of the effect of wheel flat on the wheel rail forces. This is due to the considerably low computational costs of two dimensional (2D) models although their reliability is questionable. This leaves us with t...
Article
Full-text available
In this study, a new sub-parametric strip element is developed to simulate the axially loaded composite cylindrical panel with arbitrary cutout. For this purpose, a code called SSFSM is developed in FORTRAN to analyze the buckling of panels. The first order shear deformation theory is used to form the strain-displacement relations. Spline and Lagra...
Article
In this paper, a methodology is introduced to address the free vibration analysis of cracked plate subjected to a uniaxial inplane compressive load for the first time. The crack, assumed to be open and at the edge is modeled by a massless linear rotational spring. The governing differential equations are derived using the Mindlin theory, taking int...
Article
Full-text available
In this research, two equations are considered as examples of hyperbolic and elliptic equations. In addition, two finite element methods are applied for solving of these equations. The purpose of this research is the selection of suitable method for solving each of two equations. Burgers’ equation is a hyperbolic equation. This equation is a pure a...
Article
The effects of initial geometric imperfection and pre- and post-buckling deformations on vibration of isotropic rectangular plates under uniaxial compressive in-plane load have been studied. The differential equations of plate motions, using the Mindlin theory and Von-Karman stress-strain relations for large deformations, were extracted. The soluti...
Conference Paper
Full-text available
In this research, the effect of adding 6 and 12 mm in length, polypropylene short fibers on ductility of high-strength concrete was investigated, experimentally. It was observed that addition of both 6 and 12 mm fibers to concrete result in remarkable increase in it's ductility.
Article
Linearized buckling analysis of functionally graded shells of revolution subjected to displacement-dependent pressure, which remains normal to the shell's middle surface throughout the deformation process, is described in this work. Material properties are assumed to be varied continuously in the thickness direction according to a simple power law...
Article
This paper is presented to solve the buckling problem of functionally graded truncated conical shells subjected to displacement-dependent pressure which remains normal to the shell middle surface throughout the deformation process by the semi-analytical finite strip method. Material properties are assumed to be temperature dependent, and varied con...
Article
The objective of this paper is to investigate buckling behavior of composite laminated cylinders by using semi-analytical finite strip method. The shell is subjected to deformation-dependent loads which remain normal to the shell middle surface throughout the deformation process. The load stiffness matrix, which is responsible for variation of load...
Article
Full-text available
In this paper, a new algorithm for solving the vehicle/track dynamic interaction problem is developed, aimed at reducing the computational cost. The algorithm called Advanced Solver Algorithm (ASA) uses the full Newton–Raphson incremental-iterative method in conjunction with the Newmark integration scheme to solve the equilibrium equations of the c...
Article
Rail irregularity is one of the most significant load amplification factors in railway track systems. In this paper, the capability and effectiveness of the two main railway slab tracks modeling techniques in prediction of the influences of rail irregularities on the Wheel/Rail Dynamic Force (WRDF) were investigated. For this purpose, two 2D and 3D...
Article
Laminated composite shells are commonly used in various engineering applications including aerospace and marine structures. In this paper, using semi-analytical finite strip method, the buckling behavior of laminated composite deep as well as thick shells of revolution under follower forces which remain normal to the shell is investigated. The stif...
Article
This paper develops a new two-dimensional numerical model of vehicle/discontinuous slab track dynamic interaction. The vehicle is simulated as a multibody system with 10 degrees of freedom. The slab track is represented by a three-layer model that consists of a continuous rail layer, a discontinuous concrete slab layer, and a continuous concrete ba...
Article
This article focuses on the application of the Fourier-expansion based differential quadrature method (FDQM) for the buckling analysis of ring-stiffened composite laminated cylindrical shells. Displacements and rotations are expressed in terms of Fourier series expansions in longitudinal direction and their first order derivatives are approximated...
Article
In this paper, the static buckling of especially orthotropic stringer-stiiened composite cylindrical shells subjected to combined axial compression and external pressure is investigated, based on geometrical non-linear analysis with considering pre-buckling deformations. The kinematic relation of shells is based on the Donnell non-linear theory and...

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Projects

Projects (2)
Project
In this project, our goal is to examine the concrete elements in the fire. When a fire exposes concrete to high heat, extensive damage can occur because of the temperature shock to the material. Basically, like most any other material, concrete expands as it’s heated. When extreme heat is applied, the outer layers will expand much more quickly than the inner sections. in this project we test In this project, the effect of different parameters of the beam on fire is investigated
Archived project
Investigating behavior of Concrete Meso-scale models under dynamic loadings