Results 11 to 20 of about 4,593 (200)

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   +2 more sources

Effects of plies orientations and initial geometric imperfections on buckling strength of a composite stiffened panel

open access: yesMATEC Web of Conferences, 2018
The use of composite stiffened panels is common in several activities such as aerospace, marine and civil engineering. The biggest advantage of the composite materials is their high specific strength and stiffness ratios, coupled with weight reduction ...
Feddal Ikram   +2 more
doaj   +2 more sources

Influence of Initial Imperfections on PMMA Spherical Shell

open access: yesAdvances in Materials Science and Engineering, 2022
This paper focused on the influence of initial imperfection on the critical load of PMMA pressure spherical shell by introducing buckling modes as the initial defect.
Haitao Zhu   +4 more
doaj   +2 more sources

Defining initial geometric imperfections for the in-plane stability design of steel frames

open access: yes
The presence and form of initial geometric imperfections can significantly impact the structural response and the ultimate capacity of steel structures. Suitably chosen imperfections must be adopted during the design stage, particularly when utilising advanced analysis; applying inappropriate imperfections, either in terms of their shape or amplitude ...
Slack, Harry
openaire   +3 more sources

Study of the influence of initial geometric imperfections on the behavior of semi-rigid steel frames

open access: yes, 2021
Neste trabalho analisou-se a influência das imperfeições geométricas iniciais na estabilidade de pórticos planos semi-rígidos de aço. Para isso, foi analisado via método dos elementos finitos a introdução das imperfeições geométricas iniciais por meio da
Higaki, Bruno Eizo   +1 more
core   +1 more source

Vibration Analysis of an Imperfect Single-Layer Graphene Sheet using Quasi-3d Theory and Isogeometric Approach [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2023
In this study, the size-dependent free vibration analysis of a geometrically imperfect single-layer graphene sheet (SLGS) is studied by an isogeometric approach along with the quasi-3D shear and normal deformation theory.
Heidar Fazeli   +2 more
doaj   +1 more source

Strain Energy and Entropy Based Scaling of Buckling Modes

open access: yesEntropy, 2023
A new utilization of entropy in the context of buckling is presented. The novel concept of connecting the strain energy and entropy for a pin-ended strut is derived.
Zdeněk Kala
doaj   +1 more source

INITIAL GEOMETRIC IMPERFECTIONS AKIBAT TEKUK SINGLE CURVATURE MOMENT PADA BALOK BAJA SEDERHANA

open access: yes, 2021
Steel beams are susceptible to initial geometric imperfections due to improper fabrication and installation processes. Consequently, long steel beams without stiffening are prone to bending due to lateral torsion.
Swastika, Tri Widya   +2 more
core   +1 more source

Design Forces of Horizontal Braces Unlocated at Middle of Columns considering Random Initial Geometric Imperfections

open access: yesAdvances in Civil Engineering, 2021
The horizontal bracing forces of column-bracing systems derived from past studies and current design codes were considered only located at middle of columns.
Jinyou Zhao, Junming Wei, Jun Wang
doaj   +1 more source

Buckling of Rectangular Plates under Nonlinear Creep

open access: yesAdvanced Engineering Research, 2023
Introduction. The task of analyzing the stability of plates and shells under creep conditions is critical for structural elements made of materials with the property of aging, which are under the action of long-term loads, since the loss of stability can
S. B. Yazyev, A. S. Chepurnenko
doaj   +1 more source

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