نتایج جستجو برای: Axial Load Variation

تعداد نتایج: 483119  

Journal: :مهندسی سازه 0
علی اکبر مقصودی هومان رضائیان

in fact the most suitable method for finding the load bearing capacity of a member under the axial load or axial load and bending is make use of the interaction diagrams. to analysis and design the hollow circular, square and rectangular high strength concrete (hsc) column shapes, a linear strain variation was assumed in the cross-section height of the members and then the static equilibrium eq...

Mohieddin Ghomshei, M., Namazi, Sh.,

In this article, mechanical buckling analysis of tapered beams having constant width and variable thickness, made of two-dimensional functionally graded materials is studied. The beam is assumed to be made of metal and ceramic, where their volume fractions vary in both longitudinal and thickness directions based on the power law. The beam is generally subjected to combined concentrated and dist...

Journal: :journal of mining and environment 0
a. mirzaghorbanali school of civil, mining, and environmental engineering, university of wollongong, nsw, australia n. aziz school of civil, mining, and environmental engineering, university of wollongong, nsw, australia

the load transfer mechanisms of cable bolts differ from those for normal rebar bolts. the cable bolts used in mines are basically steel strands with different constructions depending on the number of wires or elements and the way they are laid. tendon bolts (rebar and cable) are normally evaluated for their strength and load transfer properties. the tendon strength can be evaluated by the tensi...

Journal: :مهندسی عمران فردوسی 0
مسعود قادری حسین غفارزاده وحید عرب ملکی

in this paper, a new analytical method is proposed to study the effect of crack and axial load on vibration behavior and stability of the cracked columns. using the local flexibility model, the crack has been simulated by a torsional spring with connecting two segments of column in crack location. by solving governing eigenvalue equation, the effect of crack parameters and axial load on the nat...

Journal: :international journal of civil engineering 0
m.e. torki phd student, zachry department of civil engineering, texas a&m university, college station, tx 77843, usa m. taghi kazemi associate professor, department of civil engineering, sharif university of technology, tehran, islamic republic of iran s.b. talaeitaba assistant professor of azad university, department of civil engineering, khomeinishahr azad university, isfahan, islamic republic of iran

the effect of axial deformation of shell particles on the dynamic instability (flutter) of cantilevered cylindrical shells made of functionally graded materials (fgm) under an end axial follower force is addressed. to this end, at first, results for free vibration of fgm cylindrical shells were verified with previous outcomes and they were in very good agreement. then, the effect of axial defor...

Journal: :iranian journal of science and technology (sciences) 2006
h. sofiyev

in this study, the stability problem of a circular orthotropic cylindrical shell under the effect of anaxial compression varying with a power function of time is considered. at first, the modified donnell typedynamic stability and compatibility equations are obtained using love’s shell theory. applying the galerkinmethod and rayleigh-ritz variational techniques to these equations and taking the...

Journal: :civil engineering infrastructures journal 0
omid rezaifar assistant professor of civil engineering department, research institute of advanced technology in civil engineering, semnan university, semnan, iran. mohammad reza doostmohammadi m.sc, research institute of advanced technology in civil engineering, semnan university, semnan, iran.

the present study utilizes an analytical method to formulate the three lowest modal frequencies of axially-loaded notched beam through both crack location and load level in a specific format that can be used in existing frequency-based crack-identification methods. the proposed formula provides a basis to shift into two states, one with axial loading and the other without any loading whatsoever...

Journal: :journal of computational & applied research in mechanical engineering (jcarme) 2012
mohammad ebrahim torki harchegani mohammad taghi kazemi

axial vibration effect of shell particles on dynamic stability of a cantilevered cylindrical shell under an axial follower force was addressed. in spite of free-ended shells, the reduced axial force under this effect cannot be derived analytically. instead, an approximate method was proposed based on the fact that the static (and harmonic) axial deformation under an axial load in a free-ended b...

The purpose of this study is to investigate bending moment and the axial load capacity of a pressurized pipe suffering from a through-wall circumferential crack repaired by a composite sleeve. The three-dimensional finite element method (FEM) was adopted to compute the results, and the failure assessment diagram (FAD) was employed to investigate the failure behavior of the repaired pipe. The fi...

M Jabbari, M Zarghami Dehaghani

This paper studied Buckling analysis of porous truncated conical shell subjected to axial load. It is considered that a fluid undrained between porous material and the Porous material properties vary across the thickness of shell with a specific function also assumed that the edge of the shell is simply supported. The governing equations are based on the Sanders kinematics equations and the fir...

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