Results 41 to 50 of about 1,447 (166)

Mechanical properties of a G/h-BN heterobilayer nanosheets coupled by interlayer sp3 bonds and defects

open access: yesMaterials Research Express, 2019
The mechanical properties of graphene/hexagonal boron nitride (G/h-BN) heterobilayer nanosheets coupled by interlayer sp ^3 bonds and defects have been investigated by using the molecular dynamics (MD) simulation. For this purpose, interlayer sp ^3 bonds
Lei Fan, Wenjuan Yao
doaj   +1 more source

Effect of geometric imperfections on the ultimate moment capacity of cold-formed sigma-shape se

open access: yesHBRC Journal, 2017
In recent years, cold formed steel sections are used more and more as primary framing components and as a secondary structural system. They are used as purlins and side rails or floor joist, and after that in the building envelops.
Bassem L. Gendy, M.T. Hanna
doaj   +1 more source

Stability Analysis and Comparison of Conventional Concrete and Expanded Polystyrene Concrete Spherical Shells

open access: yesStructural Mechanics of Engineering Constructions and Buildings
The main purpose of this study is to investigate the buckling behavior of a light weight expanded polystyrene concrete (EPSC) spherical shell and compare it to an equivalent concrete shell.
Issaias A. Sereke   +2 more
doaj   +1 more source

Geometrical and Structural Imperfections of Steel Member Systems

open access: yesProcedia Engineering, 2012
AbstractThe paper is focused on the influence of geometrical and structural imperfections in selected load-bearing steel structures from the point of view of the whole load-bearing system. Implemented member steel structures show a varying degree of shape and structural deviations from the presumed idealized state.
Šmak, M., Straka, B.
openaire   +1 more source

An Analytical Study on the Thermal Post-Buckling Behaviors of Geometrically Imperfect FRC-Laminated Beams Using a Modified Zig-Zag Beam Model

open access: yesAerospace
An asymptotic analytical method is proposed to study the thermal post-buckling behaviors of fiber-reinforced composite (FRC)-laminated beams with geometric imperfections employing a modified zig-zag beam model.
Zhoumi Wang, Qingchun Meng
doaj   +1 more source

Probabilistic Topology Optimization Framework for Geometrically Nonlinear Structures Considering Load Position Uncertainty and Imperfections

open access: yesMathematics
In this manuscript, a novel approach to topology optimization is proposed which integrates considerations of uncertain load positions, thereby enhancing the reliability-based design within the context of structural engineering. Extending the conventional
Muayad Habashneh   +3 more
doaj   +1 more source

Numerical Analysis Of Buckling Of Von Mises Planar Truss

open access: yesTransactions of the VŠB: Technical University of Ostrava, Civil Engineering Series, 2015
A computational algorithm of a discrete model of von Mises planar steel truss is presented. The structure deformation is evaluated by seeking the minimal potential energy. The critical force invented by mathematical solution was compared with solution by
Kalina Martin
doaj   +1 more source

Numerically Predicted Buckling Design Criteria for Elliptical Common Bulkhead Structures

open access: yesInternational Journal of Aerospace Engineering
A common bulkhead (CB) structure that separates the oxidizer and fuel regions without an interstage single tank reduces the weight of the propellant tanks of launch systems.
Gi-Seop Kim   +3 more
doaj   +1 more source

FUNDAMENTAL MODELS OF STRUCTURAL STABILITY

open access: yesRudarsko-geološko-naftni Zbornik, 2017
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

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