Results 61 to 70 of about 4,593 (200)

Detailed analysis of the effects of initial geometric imperfections on longitudinally stiffened plates [PDF]

, 2013
The graduate thesis addresses slender longitudinally stiffened steel plates subjected to pure shear and uniform compression respectively. After buckling such plates develop significant post-critical resistance, which is not the case for column buckling ...
Lužar, Gašper
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Residual Stresses and Geometric Imperfections in High-Strength Steel Cellular Beams: Sensitivity Analysis

Although the use of high-strength steel in cellular beams enhances both structural performance and sustainability, it remains largely unexplored in current literature.
Ferreira, F. P. V., De Nardin, S., Tsavdaridis, K., Pazin, V. A.   +3 more
core   +1 more source

On the Initial Imperfections and Their Relations to the Strength of Webplates of Actual Steel Bridges [PDF]

, 1981
This study is mainly concerned with statistical investigations on the actual initial imperfections and their relations to the load carrying capacities of the webplates of steel bridges.
NIWA, Yoshiji, IWASHIMIZU, Yoshitaka, WATANABE, Eiichi   +2 more
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Numerical analysis of compressed cold formed steel members considering initial geometric imperfections

, 2007
O presente trabalho apresenta proposta de análise numérica de perfis de aço formados a frio submetidos à compressão centrada. Trata-se de investigação, realizada por meio de elementos finitos, com vistas à análise da influência de imperfeições ...
Saulo José de Castro Almeida, Almeida, Saulo José de Castro   +1 more
core   +1 more source

Inelastic Moment Resistances of Welded Steel Beams with Initial Shape Imperfections

Civil and Environmental Engineering
Numerical procedures based on geometric and material nonlinearities are proposed in the present study to evaluate the inelastic responses of welded steel beams with the initial shape imperfections of welds, braces and out-of-straightness.
Van Pham Phe, Doan-Tan Thi, Le-Dang Dung, Xuan-Huy Nguyen   +3 more
doaj   +1 more source

Influence of Imperfections on Axial Buckling Load of Composite Cylindrical Shells

, 2013
There is a strong requirement for more robust, lighter and cheaper launch vehicle structures. Unstiffened composite cylindrical shells, which are essential to the fabrication of launch vehicle airframes, are prone to buckling and are highly sensitive to ...
Prusty, G., Thomson, Rodney, Degenhardt, Richard, Keple, Jendi, Kelly, Don, Pearce, G.   +5 more
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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

Residual stresses and initial imperfections in non-linear analysis

, 2013
When non-linear finite element analysis (FEA) of cold-formed thin-walled steel sections subject to compression is carried out, an initial perturbation must be introduced in the model in order to trigger the failure due to instability.
Roure Fernández, Francisco, Casafont Ribera, Miguel, Bonada Bo, Jordi, Pastor Artigues, María Magdalena   +3 more
core   +1 more source

Robust sizing optimization of stiffened panels subject to geometric imperfections using fully nonlinear postbuckling analyses

, 2022
This work presents a new approach for deterministic and robust thickness sizing optimization of a stiffened panel subject to geometric imperfections.
Kriegesmann, Benedikt, Steltner, Kai, Pedersen, Claus B.W.   +2 more
core   +1 more source

STUDI ANALISIS PEMODELAN PERILAKU LENTUR BAJA COLD FORMED PADA STRUKTUR BALOK C SINGLE DENGAN PENGARUH INITIAL GEOMETRIC IMPERFECTIONS

, 2022
Pada era pemerintahan saat ini, pemerintah menargetkan program pembangunaninfrastruktur. Konstruksi saat ini pun juga menerapkan konstruksi yang memiliki sifatsustainability atau konstruksi hijau dengan cara menggunakan baja cold-formed sebagaisolusinya.
Natanael, Kristian, Setyowulan, Desy, Susanti, Lilya   +2 more
core   +1 more source