Results 251 to 260 of about 2,646,492 (277)

Effect of Initial Imperfections on the Flexural Eigenvibrations of Cylindrical Shells

Journal of Applied Mechanics and Technical Physics, 2001
The effect of small initial deviations from the ideal circular shape of a shell on the frequencies and modes of flexural eigenvibrations is studied with the use of the linear theory of thin shallow shells. It is assumed that the initial deviations are responsible for interaction between flexural and radial vibrations of the shell.
Taranukha, N. A., Lejzerovich, G. S.
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Lateral Stability of Beams with Initial Imperfections

Journal of Engineering Mechanics, 1983
The design of large flat-roof systems necessitates a means of analyzing the required strength of bracing members. If the braced beam is initially perfectly straight, it will remain straight until it buckles; the prebuckling stresses in the braces are theoretically zero. If the braced beam has initial imperfections, they will grow under load and so will
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The Effect of Initial Imperfections on Shell Stability

2002
The development of “DISDECO”, the Delft Interactive Shell DEsign COde is described. The purpose of this project is to make the accumulated theoretical, numerical and practical knowledge of the last 20 years readily accessible to users interested in the analysis of buckling of sensitive structures.
J. Arbocz, J. M. A. M. Hol, J. Vries
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Ultimate Load Behavior of Beams With Initial Imperfections

Journal of Structural Engineering, 1985
More exact expressions of the fundamental equations of a member with initial imperfections subjected to the action of bending and torsional moments are derived. Since beam problems involve moderately large in‐plane deformation prior to collapse, only nonlinear terms of in‐plane displacement and in‐plane resulting force are considered in the numerical ...
Susumu Nishida, Yuhshi Fukumoto
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Reliability of framed structures with initial imperfections

Computers & Structures, 1987
Abstract A method is proposed for determining the reliability of inelastic framed structures with initial imperfections. Structures with deterministic initial imperfections and material properties are analyzed by a previously proposed nonlinear structural analysis method to find the limit state functions in load space.
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Buckling of Initially Imperfect Cylindrical Shells Subject to Torsion

Journal of Applied Mechanics, 1957
Abstract An analytical solution based upon large-deflection shell theory is presented for the problem of the elastic instability of a thin cylindrical shell subject to torsion. The fundamental equations used are those presented by Donnell in 1934, and these equations together with the condition of stationary potential energy are employed
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Axial Impact Buckling of a Column With Random Initial Imperfections

Journal of Applied Mechanics, 1978
Axial impact buckling of perfectly elastic bars with initial imperfections is considered in a probabilistic setting. It is assumed that the initial imperfection function involved a single parameter, which in turn is a continuous random variable with given probability distribution function.
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Computation of Critical Initial Imperfection of Truss Structures

Journal of Engineering Mechanics, 1990
A method for computing the critical (worst) initial imperfection of elastic truss structures is presented, on the basis of a previous work of the writers. This method can deal with initial imperfections of various properties, including loading pattern vectors, nodal initial position vectors, initial member length, and the product of Young's modulus and
Kiyohiro Ikeda, Kazuo Murota
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On the stability of an initially imperfect, nonlinearly viscoelastic column

International Journal of Solids and Structures, 1968
Abstract The stability of an initially imperfect, simply-supported, H-section beam-column, subjected to an axial compressive load, is investigated. The material of the column is taken to behave as a general nonlinear viscoelastic solid with a constitutive relation represented by a Volterra-Frechet functional polynomial.
Distefano, J. N., Sackman, J. L.
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Sensitivity of semi-rigid frames to initial imperfections

Journal of Constructional Steel Research, 1991
Abstract The effects of imperfections are presented for the limit state concept design philosophy of structural steel buildings with flexible beam-column connections. The sensitivity of calibrating frames with four types of connections was tested on a second-order elastic in-plane model with semirigid connections expressed as a second-order ...
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