Listar Mecánica de Estruturas (ME) por data de publicación
Mostrando ítems 1-20 de 38
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Crushing analysis and multi-objective crashworthiness optimization of GFRP honeycomb-filled energy absorption devices
(Elsevier, 2014)[Abstract:] Fuel efficiency and occupant safety are two of the most important concerns in the automotive industry nowadays. Encouraged by the importance of this field of study, this research attempts an improvement in the ... -
Size and shape optimization of aluminum tubes with GFRP honeycomb reinforcements for crashworthy aircraft structures
(Elsevier, 2015)[Abstract:] Crashworthiness optimization of aircraft and automotive structures has become one the main research targets for their respective leading industries. The following research proposes a new design of an aircraft’s ... -
Bridge deck flutter derivatives: Efficient numerical evaluation exploiting their interdependence
(Elsevier, 2015-01)Increasing the efficiency in the process to numerically compute the flutter derivatives of bridge deck sections is desirable to advance the application of CFD based aerodynamic design in industrial projects. In this article, ... -
Numerical simulations of the aerodynamic response of 2D circular segments by means of URANS
(WIT Press, 2016)[Abstract:] In the wind engineering field, the so-called D-section (semi-circular cylinder) has attracted some attention from researchers, since it is a galloping prone geometry. In fact, a modest number of references where ... -
Crashworthiness optimization of aircraft hybrid energy absorbers enclosing honeycomb and foam structures
(ARC (Aerospace Research Central), 2017)[Abstract:] This research proposes a new design for a vertical strut used in aircraft fuselages. It consists of a hollow aluminum vertical strut filled with a glass-fiber-reinforced polymer honeycomb-shaped structure and ... -
Experiences on structural optimization under uncertainty in aerospace components
(WIT Press, 2018)[Abstract:] Nondeterministic optimization methods have been studied in depth from an academy and industrial point of view. The main drawback when implementing probabilistic optimization methods to complex structures is the ... -
Study of a static and vertically free-to-oscillate 4:1 rectangular cylinder by means of 2D URANS simulations
(WIT Press, 2018)[Abstract:] Flexible structures, such as cable-supported bridges, are prone to suffer from vortex-induced vibrations (VIV) under wind flow, as their span lengths are steadily growing in the last decades. VIV is a phenomenon ... -
Aerodynamic performance of twin-box decks: a parametric study on gap width effects based on validated 2D URANS simulations
(Elsevier, 2018)[Abstract:] 2D URANS simulations are conducted aiming to study the aerodynamic performance under smooth flow of twin-box decks depending on the gap distance between girders. The Stonecutters Bridge is taken as the reference ... -
Wind tunnel study on the effect of the gap width in the aerodynamic and aeroelastic responses of twin-box decks
(WIT Press, 2018)[Abstract:] Twin-box decks have recently been introduced in long-span bridges because this type of slotted cross-section provides flutter critical wind speeds higher than mono-box streamlined decks for flexible structures. ... -
Numerical simulations of the aerodynamic response of circular segments with different corner angles by means of 2D URANS. Impact of turbulence modeling approaches
(Taylor & Francis, 2018)[Abstract:] This paper presents the results of numerical and experimental investigations on the force coefficients and Strouhal numbers of circular segments considering different corner angles or chord to sagitta ratios. ... -
Crashworthiness study on hybrid energy absorbers as vertical struts in civil aircraft fuselage designs
(Taylor & Francis Online, 2019)[Abstract:] This research concerns the crashworthiness study and enhancement of commercial aircraft fuselage structures by incorporating crushable hybrid energy absorbers to work as vertical struts. To assess their ... -
3D LES simulations of a static and vertically free-to-oscillate 4:1 rectangular cylinder: effects of the grid resolution
(Elsevier, 2019)[Abstract:] In the present study, the aerodynamics of the flow fields around a static and vertically free-to-oscillate 4:1 rectangular cylinder are analysed by means of 3D LES simulations, adopting the OneEqEddy viscosity ... -
Computational Techniques for Novel Design of Long-Span Bridges Considering Aeroelastic Phenomena
(ASCE, 2020)[Abstract] Optimization techniques have demonstrated their capability to obtain economic and sustainable designs while meeting the performance and safety requirements in a number of engineering disciplines. In the bridge ... -
Testing and simulation of additively manufactured AlSi10Mg components under quasi-static loading
(Elsevier, 2020)[Abstract:] An experimental and numerical study on the quasi-static loading of AlSi10Mg square boxes produced by selective laser melting (SLM) was carried out. The goal was to evaluate the applicability of common finite ... -
Crashworthiness Analysis and Enhancement of Aircraft Structures Under Vertical Impact Scenarios
(American Institute of Aeronautics and Astronautics, 2020)[Abstract] This research focuses on the crashworthiness study and enhancement of commercial aircraft structures by developing crushable energy absorbers to work as vertical struts. To assess their contribution on a ... -
Aerostructural Optimization of Long Span Bridges: Current Advances and Challenges
(ASCE, 2020)[Abstract] This paper describes the evolution of deck shape of long span bridges since the Tacoma Narrows collapse trying to avoid undesirable aerodynamic behavior under wind flow and the trend in the last decades to ... -
Optimisation of Thin-Walled Hybrid Vertical Struts for Crashworthy Aircraft Designs
(Springer, 2020)[Abstract] This research concerns the crashworthiness enhancement of a model of a Boeing 737-200 fuselage section. Using a validated numerical specimen, four thin-walled crushable hybrid energy absorbers are added to the ... -
Energy Absorption of Aluminium Extrusions Filled with Cellular Materials Under Axial Crushing: Study of the Interaction Effect
(MDPI, 2020)[Abstract] This investigation focuses on the interaction effect during the quasi-static axial crushing of circular and square thin-walled aluminium extrusions filled with polymeric foam or cork. The increment in the absorbed ... -
Inclusion of Mechanical Dampers in the Multimodal Flutter Analysis of Slender Structures
(WIT Press, 2020)[Abstract] Sometimes slender structures are reinforced with mechanical dampers to reduce the vibrations caused by aeroelastic phenomena like flutter. However the formulation of flutter analysis only considers the classical ...