Results 231 to 240 of about 1,734,649 (295)

Dynamic Buckling of a Nonlinear Timoshenko Beam

SIAM Journal on Applied Mathematics, 1979
The transient motion that results when an ended-loaded column buckles is studied using a nonlinear Timoshenko beam theory. The two-time method is used to construct an asymptotic expansion of the solution. The results are then compared with those of a previous analysis of the same problem that employed the Euler-Bernoulli beam theory.
Hirschhorn Sapir, Marilyn, Reiss, Edward L.   +1 more
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Nonlinear Cyclic Behavior of Reinforcing Bars Including Buckling

Journal of Structural Engineering, 1992
The effects of inelastic buckling on monotonic and cyclic behavior of reinforcing steel bars are studied. Experimental tests show that this phenomenon occurs when the ratio between length and diameter of the bar exceeds 5, and that it leads to a postyield softening branch in compression that strongly influences the cyclic behavior of the bar.
MONTI, Giorgio, NUTI C.
openaire   +3 more sources

Nonlinear buckling and post-buckling analyses of functionally graded circular shallow arches

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2023
Snap-through analysis of thin, functionally graded (FG), fixed, circular shallow arches subjected to uniformly distributed vertical load is examined in this paper. The modulus of elasticity varies gradually along with the normal to the axis of the arch in alliance with the power law form.
Ayfer Tekin Atacan, Receb Faruk Yükseler   +1 more
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Post buckling analysis of imperfect nonlinear viscoelastic columns

International Journal of Solids and Structures, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Touati, David, Cederbaum, Gabriel
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Nonlinear buckling analysis of composite shells

15th Structural Dynamics and Materials Conference, 1974
An incremental finite element procedure is presented for nonlinear buckling (collapse) analysis of composite shells undergoing large elastic deformations. The type of element employed is a modified version of Clough-Felippa's quadrilateral shell element. The element is made of any number of rigidly bonded orthotropic layers of different thicknesses and
openaire   +1 more source

Nonlinear Isometric Bifurcation and Shell Buckling

ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, 1977
AbstractA simple concept for studying the lower stability limit of shell structures which is based on the theory of isometric transformation of surfaces is outlined. The influence of imperfection on the lower stability limit is discussed in the case of axially compressed cylindrical shells.
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Nonlinear Interactive Buckling: Sensitivity and Optimality∗

Journal of Structural Mechanics, 1977
ABSTRACT The nonlinear buckling behavior of discrete systems in which two eigen-modes interact is studied. A variable parameter affecting the design is introduced to allow a change in the closeness of the two eigenvalues. The sensitivity of the critical equilibrium states to combined changes in the design and imperfection parameters is considered ...
J. Roorda, A. J. Reis
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Nonlinear buckling instabilities of interspersed railway tracks

Computers & Structures, 2021
Abstract In a conventional railway system, timber sleepers have been widely used for ballasted railway tracks to carry passengers and transport goods. However, due to the limited availability of reliable and high-quality timbers, and restrictions on deforestation, the “interspersed” approach is adopted to replace ageing timbers with concrete sleepers.
Chayut Ngamkhanong, Sakdirat Kaewunruen, Charalampos Baniotopoulos   +2 more
openaire   +1 more source

Nonlinear Buckling Analysis of Sandwich Arches

Journal of the Engineering Mechanics Division, 1971
An incremental displacement formulation for the nonlinear finite element analysis of sandwich arches is presented. The formulation permits the analysis of geometrically nonlinear problems with finite rotations but infinitesimal strains. The finite element model employed is a straight beam-column type, and has a three-layered sandwich construction with ...
Parviz Sharifi, Egor P. Popov
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Nonlinear buckling of cylindrical shells

Computers & Structures, 1972
A method is presented for the study of the nonlinear buckling of shallow cylindrical shells. The governing differential equations are expressed in terms of a stress function and the normal displacement. The Kantorovitch method and a finite difference scheme are applied to solve the resulting set of nonlinear differential equations.
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