The Experts below are selected from a list of 3891 Experts worldwide ranked by ideXlab platform

Yanhai Liu - One of the best experts on this subject based on the ideXlab platform.

  • Study on different moduli T-Section Beams: Pure bending elastic solution and PMMA experiment
    'Elsevier BV', 2021
    Co-Authors: Zijiang Yang, Shizhong Liu, Yanhai Liu
    Abstract:

    In order to accurately analyze the bending problem of T-Section Beams, a novel analytical method is proposed based on the simplified mechanical model of T-Section Beams with different tension and compression moduli. Firstly, the expressions of the neutral layer position, normal stress, bending stiffness and displacement of the four-point bending test Beam of two types of T-Section Beams are derived based on the classical Beam theory. Then, the expressions of the Rectangular Section Beam are obtained by degenerating the expressions of T-Section. Finally, the proposed method is verified via the finite element simulation and the four-point bending test Beam of two types of T-Section Beams with Polymethyl methacrylate (PMMA). From the comparative analysis, the theoretical solutions of the proposed analytical method agree well with the results of the experimental data and the finite element. The flexural modulus can be obtained accurately by the proposed method with the compression and tensile moduli of the Beam, which can be used as an efficient and theoretical approach to determine the flexural modulus of the T Beam instead of conducting bending experiments

A Sanz-andrés - One of the best experts on this subject based on the ideXlab platform.

  • Static and Dynamic Experimental Analysis of the Galloping Stability of Porous H-Section Beams
    2020
    Co-Authors: F Gandia, J Meseguer, A Sanz-andrés
    Abstract:

    The phenomenon of self-induced vibrations of prismatic Beams in a cross-flow has been studied for decades, but it is still of great interest due to their important effects in many different industrial applications. This paper presents the experimental study developed on a prismatic Beam with H-Section. The aim of this analysis is to add some additional insight into the behaviour of the flow around this type of bodies, in order to reduce galloping and even to avoid it. The influence of some relevant geometrical parameters that define the H-Section on the translational galloping behaviour of these Beams has been analysed. Wind loads coefficients have been measured through static wind tunnel tests and the Den Hartog criterion applied to elucidate the influence of geometrical parameters on the galloping properties of the bodies under consideration. These results have been completed with surface pressure distribution measurements and, besides, dynamic tests have been also performed to verify the static criterion. Finally, the morphology of the flow past the tested bodies has been visualised by using smoke visualization techniques. Since the Rectangular Section Beam is a limiting case of the H-Section configuration, the results here obtained are compared with the ones published in the literature concerning Rectangular configurations; the agreement is satisfactory

Zijiang Yang - One of the best experts on this subject based on the ideXlab platform.

  • Study on different moduli T-Section Beams: Pure bending elastic solution and PMMA experiment
    'Elsevier BV', 2021
    Co-Authors: Zijiang Yang, Shizhong Liu, Yanhai Liu
    Abstract:

    In order to accurately analyze the bending problem of T-Section Beams, a novel analytical method is proposed based on the simplified mechanical model of T-Section Beams with different tension and compression moduli. Firstly, the expressions of the neutral layer position, normal stress, bending stiffness and displacement of the four-point bending test Beam of two types of T-Section Beams are derived based on the classical Beam theory. Then, the expressions of the Rectangular Section Beam are obtained by degenerating the expressions of T-Section. Finally, the proposed method is verified via the finite element simulation and the four-point bending test Beam of two types of T-Section Beams with Polymethyl methacrylate (PMMA). From the comparative analysis, the theoretical solutions of the proposed analytical method agree well with the results of the experimental data and the finite element. The flexural modulus can be obtained accurately by the proposed method with the compression and tensile moduli of the Beam, which can be used as an efficient and theoretical approach to determine the flexural modulus of the T Beam instead of conducting bending experiments

F Gandia - One of the best experts on this subject based on the ideXlab platform.

  • Static and Dynamic Experimental Analysis of the Galloping Stability of Porous H-Section Beams
    2020
    Co-Authors: F Gandia, J Meseguer, A Sanz-andrés
    Abstract:

    The phenomenon of self-induced vibrations of prismatic Beams in a cross-flow has been studied for decades, but it is still of great interest due to their important effects in many different industrial applications. This paper presents the experimental study developed on a prismatic Beam with H-Section. The aim of this analysis is to add some additional insight into the behaviour of the flow around this type of bodies, in order to reduce galloping and even to avoid it. The influence of some relevant geometrical parameters that define the H-Section on the translational galloping behaviour of these Beams has been analysed. Wind loads coefficients have been measured through static wind tunnel tests and the Den Hartog criterion applied to elucidate the influence of geometrical parameters on the galloping properties of the bodies under consideration. These results have been completed with surface pressure distribution measurements and, besides, dynamic tests have been also performed to verify the static criterion. Finally, the morphology of the flow past the tested bodies has been visualised by using smoke visualization techniques. Since the Rectangular Section Beam is a limiting case of the H-Section configuration, the results here obtained are compared with the ones published in the literature concerning Rectangular configurations; the agreement is satisfactory

Shizhong Liu - One of the best experts on this subject based on the ideXlab platform.

  • Study on different moduli T-Section Beams: Pure bending elastic solution and PMMA experiment
    'Elsevier BV', 2021
    Co-Authors: Zijiang Yang, Shizhong Liu, Yanhai Liu
    Abstract:

    In order to accurately analyze the bending problem of T-Section Beams, a novel analytical method is proposed based on the simplified mechanical model of T-Section Beams with different tension and compression moduli. Firstly, the expressions of the neutral layer position, normal stress, bending stiffness and displacement of the four-point bending test Beam of two types of T-Section Beams are derived based on the classical Beam theory. Then, the expressions of the Rectangular Section Beam are obtained by degenerating the expressions of T-Section. Finally, the proposed method is verified via the finite element simulation and the four-point bending test Beam of two types of T-Section Beams with Polymethyl methacrylate (PMMA). From the comparative analysis, the theoretical solutions of the proposed analytical method agree well with the results of the experimental data and the finite element. The flexural modulus can be obtained accurately by the proposed method with the compression and tensile moduli of the Beam, which can be used as an efficient and theoretical approach to determine the flexural modulus of the T Beam instead of conducting bending experiments