Overall instability and optimization of bar structures with random defects in case of constraints on faultless operation probability [PDF]
The aim of this paper is to pose and solve weight optimization problem of bar structures with constraints on faultless operation probability of a structure and constraints on design variables.
O.A. Sergeyev +2 more
doaj +1 more source
This paper presents an analytical study on the multiple equilibria and buckling of pinned-fixed functionally graded graphene nanoplatelet-reinforced composite (FG-GPLRC) arches under central point load. It is assumed that graphene nanoplatelets (GPLs) in
Zhicheng Yang +5 more
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FUNDAMENTAL MODELS OF STRUCTURAL STABILITY
In this paper, basic structural stability phenomena are described. After some general comments about stability in the field of civil engineering, four elementary sources of nonlinearity are mentioned: of equilibrium equations, strain (geometry) relations,
Antonia Jaguljnjak Lazarević +2 more
doaj +1 more source
Influence of geometrical imperfection on critical temperature evaluation for steel corrugated arch sheets exposed to fire [PDF]
The critical temperature for an arched corrugated steel sheet exposed to fully developed fire is determined in this paper. The analysis is performed on 3D numerical model developed within the ANSYS computational environment with parameters calibrated ...
Maślak Mariusz +2 more
doaj +1 more source
Closed-form equation for natural frequencies of beams under full range of axial loads modeled with a spring-mass system [PDF]
A new simple closed-form equation that accurately predicts the effect of an arbitrarily large constant axial load, residual stress or temperature shift on the natural frequencies of an uniform single-span beam, with various end conditions, is presented ...
Fernández Martínez, Daniel +2 more
core +2 more sources
Strength Analysis of Steel Construction and Swing Hanger Using Theoretical Method and Simulation of Finite Element [PDF]
The initial activity in this study was carried out by examining the results of testing of reinforcing steel through tensile testing and bending testing.
Riki Effendi, Fadwah Maghfurah
doaj +1 more source
An Inelastic Theoretical Model regarding the Load-Carrying Capacity of PSL Bending Component
Parallel strand lumber (PSL) is an attractive structural wood composite which may have prospective use in building constructions. Conducting nonlinear analysis for the bending of PSL beams is a critical step in the determination of ultimate strength and ...
Baolu Sheng +3 more
doaj +1 more source
Helical buckling of Skyrme-Faddeev solitons [PDF]
Solitons in the Skyrme-Faddeev model on R^2xS^1 are shown to undergo buckling transitions as the circumference of the S^1 is varied. These results support a recent conjecture that solitons in this field theory are well-described by a much simpler model ...
Foster, David, Harland, Derek
core +2 more sources
Dynamics of poroelastic filaments [PDF]
We investigate the stability and geometrically non-linear dynamics of slender rods made of a linear isotropic poroelastic material. Dimensional reduction leads to the evolution equation for the shape of the poroelastica where, in addition to the usual ...
Mahadevan, L., Skotheim, J. M.
core +3 more sources
A NEW ALGORITHM IN NONLINEAR ANALYSIS OF STRUCTURES USING PARTICLE SWARM OPTIMIZATION
Solving systems of nonlinear equations is a difficult problem in numerical computation. Probably the best known and most widely used algorithm to solve a system of nonlinear equations is Newton-Raphson method.
Iman Mansouri +2 more
doaj +1 more source

