Results 111 to 120 of about 1,976 (223)

Free-Vibration and Buckling Analyses of Beams using Kriging-Based Timoshenko Beam Elements with the Discrete Shear Gap Technique

open access: yesCivil Engineering Dimension
A family of locking-free Kriging-based Timoshenko beam elements with a new implementation of the discrete shear gap technique was recently developed (referred to as K-beam-DSG1 elements). Performance of the K-beam-DSG1 elements has been shown to be very
Foek Tjong Wong   +2 more
doaj   +1 more source

Vibration and buckling studies of pretensioned structures [PDF]

open access: yes, 1982
Results of analyses and tests of a simple pretensional structure are presented. Linear finite element analysis correlated well with experimental small amplitude vibration data.
Belvin, W. K.
core   +1 more source

BIFURCATION BUCKLING OF SPHERICAL CAPS [PDF]

open access: yesCommunications on Pure and Applied Mathematics, 1964
openaire   +3 more sources

Mode interactions with symmetry [PDF]

open access: yes
This thesis deals with steady-state mode interaction problems with symmetry. We prove several results concerning problems invariant under the action of an arbitrary compact Lie group Γ. These include the existence of mixed-mode solutions and secondary
Castro, Sofia Balbina Santos Dias de
core  

Simulating Postbuckling Behaviour and Collapse of Stiffened CFRP Panels [PDF]

open access: yes, 2007
Advanced composite materials are well known for their outstanding potential in weight-related stiffness and strength leading to an ever increasing share in aerospace structural components out of Carbon Fibre Reinforced Plastics (CFRP).
Rohwer, Klaus, Degenhardt, Richard
core  

Buckling of a Nonlinearly Elastic Column: Variational Principles, Bifurcation and Asymptotics

open access: yesRocky Mountain Journal of Mathematics, 1995
We study the equilibrium states of an elastic column subject to an end thrust. The column is modeled as an inextensible rod with a nonlinear moment-curvature equation. We bring various mathematical theories to bear on this problem; the calculus of variations, bifurcation theory, phase plane analysis, and singular perturbation theory for ordinary ...
openaire   +3 more sources

Bifurcation analysis of cold-formed steel compression members [PDF]

open access: yes, 2002
An inelastic bifurcation analysis of cold-formed steel lipped channel columns is described in this paper. A technique for determining the overall flexural and flexural-torsional bifurcation loads of locally buckled columns is presented.
Young, B.
core  

Least-squares Smoothed Shape Functions for Constructing Field-Consistent Timoshenko Beam Elements

open access: yesCivil Engineering Dimension
This paper presents an approach for constructing field-consistent Timoshenko beam elements using least-squares smoothed (LSS) shape functions. The variational basis for shear strain redistribution is thoroughly explained, leading to the derivation of ...
Foek Tjong Wong   +3 more
doaj   +1 more source

Bifurcation of locally buckled channel columns [PDF]

open access: yes, 1997
The report derives the governing equations for the fundamental and bifurcated states of members with singly symmetric cross-sections that locally buckle in the fundamental state. The members are subject to pure compression and assumed to be geometrically
Rasmussen, KJR   +3 more
core  

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