Resistencia de vigas esbeltas de acero inoxidable bajo cargas concentradas mediante elementos finitos

Ayestarán, Asdrubal; Ingeniería, Albatros; Graciano, Carlos; González‐Estrada, Octavio Andrés

doi:10.18273/revuin.v16n2-2017006

Cited by 17 publications

(8 citation statements)

References 11 publications

(15 reference statements)

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“…In order to model the initial shape imperfections, a linear eigenvalue analysis is performed to obtain the critical buckling loads and corresponding buckling modes [18], [21]. The analysis is conducted using the Finite Element (FE) software ABAQUS [22].…”

Section: Eigenvalue Analysismentioning

confidence: 99%

Compressive strength of partially stiffened cylinders at elevated temperatures

Araque¹,

Graciano

Zapata-Medina

et al. 2020

revuin

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This work presents the finite element analysis of partially stiffened cylinders subjected to axial compression at elevated temperatures. The compressive strength is calculated for self-weight conditions and the influence of the temperature on the material response is also investigated. In the oil industry, pressure vessels are commonly used operating at complex design conditions such as high-pressure profiles and/or elevated temperature gradients which affect considerably the structural response of inner components. Among them, risers become sensitive steel elements withstanding heavy compressive loading due to self-weight, as well as, insulation elements added toprotect them from the elevated temperature gradient. Most risers structurally fail at the bottom end due to buckling caused by self-weight and temperature effects. To remediate this situation and to guarantee the integrity of the riser, longitudinal stiffeners are welded at the bottom end. Hence, a proper determination of the compressive strength of the cylinder, taking into account the influence of the longitudinal stiffening and the corresponding temperature, is required.Results indicate that the use oflongitudinal stiffeners in deformed cylinders increases the strength to buckling in percentages that vary according to the cross-section of the profiles.

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Section: Eigenvalue Analysismentioning

confidence: 99%

Compressive strength of partially stiffened cylinders at elevated temperatures

Araque¹,

Graciano

Zapata-Medina

et al. 2020

revuin

Self Cite

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“…The Finite Element Method (FEM) [18] is a numerical technique used to solve problems with a high degree of complexity, for which it is difficult to solve analytically. The method has, therefore, great application in engineering problems [19], [20].…”

Section: Finite Element Analysismentioning

confidence: 99%

Design turbine blade Aeolian of vertical axis using laminated tin palm material using the finite element method

2018

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This work focuses in analyze the mechanical behavior of a vertical axis wind turbine Blade, which is constituted by a natural composite material of “Palma de Lata” and binder, constituents for which its mechanical properties are obtained through mechanical tests and literature references. This study was made under the wind conditions of the colombian “Cañon del Chicamocha”, whose aerodynamic loads (pressures) were obtained in previus studies. The Design was made base on the layers layout of the composite, from stress distribution analysis the critical regions to reinforce the blade were found. At last, the behavior of the reinforced Blade was verified, obtaining in the “Palma de Lata” laminated a feasible alternative to be used in the wind turbines design.

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“…Finite element analysis (FEA) has been proven to be a reliable tool to predict the behavior of stainless-steel girders subjected to patch loading [14], [15], [16], [17], [18]. To standardize and facilitate FEA, the European Committee for Standardization [19], [20] developed a designation system that abbreviates the features included in various structural analyses.…”

Section: Introductionmentioning

confidence: 99%

A comparative analysis of resistance models for austenitic stainless steel girders subjected to concentrated loads

Graciano¹,

Loaiza²,

Casanova³

2021

Revista UIS Ingenierías

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The increasing use of stainless steel in construction has led to the need of developing resistance models for structural elements made of this material. Unlike carbon steels, stainless steel alloys exhibit stress-strain curves with a pronounced strain hardening capacity and reasonable ductility that should be considered in the design. This difference in behavior makes the formulations used for carbon steel conservative when designing with stainless steel. Therefore, this paper presents a comparative analysis of resistance models for slender austenitic stainless-steel beams subject to concentrated loads. First, the failure mechanisms of stainless-steel beams are presented using a nonlinear finite element model. From this validated numerical model, a database obtained from a parametric analysis that covers a wide range of geometries is presented. Subsequently, this database is used to perform a comparison between various resistance models available in the literature. These models correspond to both international design codes and models obtained through machine learning. Finally, the numerical results show considerable improvement in the predicted ultimate resistances for slender stainless steel plate girders subjected to patch loading.

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Resistencia de vigas esbeltas de acero inoxidable bajo cargas concentradas mediante elementos finitos

Cited by 17 publications

References 11 publications

Compressive strength of partially stiffened cylinders at elevated temperatures

Compressive strength of partially stiffened cylinders at elevated temperatures

Design turbine blade Aeolian of vertical axis using laminated tin palm material using the finite element method

A comparative analysis of resistance models for austenitic stainless steel girders subjected to concentrated loads

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