Results 21 to 30 of about 1,447 (166)

Fourier representation of geometrical imperfection for probabilistic buckling analysis

Jurnal Ilmiah SINERGI
This research studies the first part of the failure of a compression member structure due to buckling. This unstable equilibrium collapse, exposes brittle failure which occurs suddenly and therefore should be avoided wherever possible.
Pariatmono Sukamdo, Tuti Oktavia, Resmi Bestari Muin, Budianto Ontowirjo, Mohammad Ihsan, Sang Toga Sitompul   +5 more
doaj   +1 more source

INFLUENCE OF GEOMETRICAL AND STRUCTURAL IMERFECTIONS OF STEEL PLATE GIRDERS

Facta Universitatis. Series: Architecture and Civil Engineering, 2021
The girders or parts of the girders are not ideally flat in terms of their geometry. The deviations that occur are defined as geometric imperfections.
Dragana Turnić, Srđan Živković, Marija Spasojević Šurdilović, Marko Milošević, Aleksandra Igić   +4 more
doaj   +1 more source

Optimal Design of Trusses With Geometric Imperfections

13th AIAA/ISSMO Multidisciplinary Analysis Optimization Conference, 2010
The present paper focuses on optimization of trusses that have randomness in geometry that may arise from fabrication errors. The analysis herein is a generalization of a perturbation approach to topology optimization under geometric uncertainties. The main novelty in the present paper is in the consideration of potential buckling due to misaligned ...
Mehdi Jalalpour, Takeru Igusa, James Guest   +2 more
openaire   +2 more sources

Numerical comparison between the thermo-structural behavior of steel and partially encased steel and concrete composite columns in fire

Revista IBRACON de Estruturas e Materiais, 2018
The bare steel structural members have a low fire resistance. However, in steel and concrete composite members, the concrete encasement, besides the contribution to the stiffness of the whole system, reduces the amount of heat that reaches the steel ...
Y. S. SIMÕES, F. M. ROCHA, J. MUNAIAR NETO   +2 more
doaj   +2 more sources

Ductility prediction of substrate-supported metal layers based on rate-independent crystal plasticity theory

MATEC Web of Conferences, 2016
In this paper, both the bifurcation theory and the initial imperfection approach are used to predict localized necking in substrate-supported metal layers.
Akpama Holanyo K., Bettaieb Mohamed Ben, Abed-Meraim Farid   +2 more
doaj   +1 more source

Interactive Buckling of Q420 Welded Circular Tubes under Axial Compression

Advances in Materials Science and Engineering, 2020
Finite element models (FE models) of high-strength steel Q420 (yield strength 420 MPa) circular tubes considering residual stresses and local and overall geometric imperfections were established and verified against existing test data. Based on parameter
Bin Huang, Zhou Che Hong
doaj   +1 more source

Hafif Çelik Elemanlar için İki Boyutlu Görüntülerden Üç Boyutlu Yüzey Ağı Elde Edilmesi

Düzce Üniversitesi Bilim ve Teknoloji Dergisi, 2023
Hafif çelik yapılarla ilgili yürütülen araştırmalardaki son gelişmeler ve güncellenen tasarım yönergeleri sayesinde hafif çelik elemanların inşaat süreçlerinde kullanımı önemli ölçüde artmıştır.
Burcu Güldür Erkal
doaj   +1 more source

Buckling Knockdown Factors for Hemispherical Foam Core Sandwich Shells With Single Dimple

International Journal of Aerospace Engineering
In this study, nonlinear postbuckling analyses are performed using ABAQUS to derive the buckling knockdown factors (KDFs) for hemispherical foam core sandwich shells under external pressure.
Chang-Hoon Sim, Chang-Min Lee, Gi-Seop Kim, Jae-Sang Park, Jun-Seong Lee   +4 more
doaj   +1 more source

Buckling of composite cylindrical shells with ovality and thickness variation subjected to hydrostatic pressure

Defence Technology, 2022
The initial geometric imperfection is one of the primary factors affecting the buckling behaviors of composite cylindrical shells under hydrostatic pressure.
Zhun Li, Ke-chun Shen, Xin-hu Zhang, Guang Pan   +3 more
doaj   +1 more source

Imperfection sensitivity analysis for a composite bowed-out shell under axial compression

Advances in Mechanical Engineering, 2019
In this article, we present a systematic work to investigate the imperfection sensitivity of composite bowed-out shells with different layup patterns under axial compression. Two types of geometric imperfections, including eigenmode-shaped imperfections (
Zhun Li, Guang Pan, Kechun Shen
doaj   +1 more source