Results 131 to 140 of about 269 (167)

Elasto-plastic buckling of compression members as a coupled instability

Thin-Walled Structures, 1994
Abstract In the paper the author shows that plastic deformations can be considered as a bifurcational instability of the atomic lattice. Thus, the plastic buckling of a compression bar is examined like a coupled instability between the general buckling by flexural and the local buckling by plastic deformations.
openaire   +1 more source

DYNAMIC BUCKLING OF ELASTO-PLASTIC CYLINDRICAL SHELLS UNDER AXIAL LOAD

2006
The dynamic buckling of a cylindrical shell subject to a uniform axial compression, which is a linear function of time, is examined within the framework of small strain elasto-plasticity. The material of the shell is incompressible and the effect of the elastic unloading is not taken into consideration.
Sofiyevi, A., Schnack, E.
openaire   +2 more sources

A Theory of Elasto-plastic Buckling of Structures

1971
The formulation of a theory of elasto-plastic buckling of structures is a research of a theoretical and applied interest. Such a problem requires the evaluation of the plastic response of the strain-hardening materials under a sudden change of loading and here the real difficulties hide.
openaire   +1 more source

Influence of elasto-plastic behavior of thin films on circular buckling structures

International Journal of Solids and Structures
International audience ; We report on circular buckles experimentally observed by optical and atomic force microscopy on gold ductile thin films deposited by physical vapor deposition on silicon wafers. It is shown that, whatever the radius blister dimensions, their maximum deflections are higher than those expected by the elastic theory.
Meng, K., Parry, G., Hurier, M.A., Tromas, Christophe, Coupeau, C.   +4 more
openaire   +2 more sources

An Elasto-Plastic Buckling Analysis Method for Ship Panel Structures

SNAME Maritime Convention and 5th World Maritime Technology Conference, 2015
An elasto-plastic method (EPM) for advanced buckling analysis of stiffened panels is proposed based on elastic large deflection theory and rigid plastic method considering initial imperfections, combined biaxial compression and lateral loads, and also five collapse modes.
Yining Lu, Enrong Qi
openaire   +1 more source

Elasto-plastic shear buckling of square plates with circular holes

Computers & Structures, 1978
Abstract With in-plane stresses calculated by finite element analysis, critical loads are obtained by the Rayleigh-Ritz method for a square plate subjected to uniform edge shear stress and containing centrally located circular holes. Elastic and elasto-plastic buckling is examined for clamped and simply supported plates, and results are compared with
Uenoya, M., Redwood, R. G.
openaire   +2 more sources

Elasto‐Plastic Interaction Buckling of Cold‐Formed Channel Columns

Journal of Structural Engineering, 1991
A new model has been developed to study the elasto-plastic interaction between the local and Euler buckling modes in a cold-formed thin-walled channel column under concentric and eccentric loading. Plate (local) and column (overall) imperfections have been considered in the analysis.
Y. L. Guo, S. F. Chen
openaire   +1 more source

Numerical procedure for the deflections of buckled elasto-plastic flexible bars

Computer-Aided Design, 1977
Abstract In this paper, a numerical procedure to determine the deflections at the free end and along the central line of buckled elasto-plastic flexible bars is introduced. Because of the large deflection of the bar, the nonlinear theory of bending is used to solve the problem at hand.
openaire   +1 more source

ELASTO-PLASTIC BUCKLING IN SHORT THIN WALLED BEAMS AND COLUMNS.

Proceedings of the Institution of Civil Engineers, 1978
A method for analysing interactive buckling in the elasto-plastic range of thin-walled rectangular sections is outlined. The governing differential equations are presented for solution in incremental form and the yield function and associated flow rule are used to derive tangential elasto-plastic rigidities.
openaire   +1 more source

Elasto-plastic stress analysis and buckling of laminated plates

2021
n ABSTRACT In this study, a novel analytical solution method is developed for thermal elastic- plastic stress analysis of laminated plates. This analytical solution is performed to satisfy thermal elastic-plastic stress-strain relations and boundary conditions for small plastic deformations.
openaire   +1 more source