Numerical study on the mechanical behaviour of hollow-box beams subjected to static loading

• Autorzy: Silva H. M. , Meireles J. F.
• Języki publikacji: EN

Abstrakty

EN

Novel types of internally reinforced thin-walled beams are subjected to a feasibility analysis in terms of their effective mechanical behaviour. The novel beams are subjected to bending and torsion uncoupled loadings and are analysed in terms of their stiffness behaviour in static analysis. The models were built using the commercial Finite Element Method (FEM) software ANSYS Mechanical APDL. The feasibility of the models was determined by the comparison of the stiffness behaviour of the novel beams with simple hollow-box beams, having the same mass and dimensions, with the exception of the thickness. An efficiency parameter is used in order to determine the feasibility of the studied geometries. It is found that the novel geometries represent a great improvement under bending loading, better than under torsion loading. Nevertheless, for bending and torsion combined loadings, if bending loads are predominant, the beams can still be interesting for some applications, in particular those with mobile parts.

Słowa kluczowe

EN

sandwich beams; mechanical behaviour; FEM; Finite Element Method; solid mechanics

PL

belka trójwarstwowa; zachowanie mechaniczne; MES; metoda elementów skończonych; mechanika ciała stałego

• Wydawca: Wydawnictwo Politechniki Łódzkiej
• Czasopismo: Mechanics and Mechanical Engineering
• Rocznik: 2017
• Tom: Vol. 21, nr 4
• Strony: 871--884
• Opis fizyczny: Bibliogr. 14 poz., il. (w tym kolor.), wykr.

Twórcy

autor

Silva H. M.

• Department of Mechanical Engineering, University of Minho, Campus of Azurém, 4800-058 Guimarães, Portugal

autor

Meireles J. F.

• Department of Mechanical Engineering, University of Minho, Campus of Azurém, 4800-058 Guimarães, Portugal

Bibliografia

• [1] Silva, H.M., De Meireles, J.F.: Determination of material/geometry of the section most adequate for a static loaded beam subjected to a combination of bending and torsion, Materials Science Forum, 730-732, 507-512, 2013.
• [2] Silva, H.M.: Determination of material/geometry of the section most adequate for a static loaded beam subjected to a combination of bending and torsion, MSc. Thesis, University of Minho, 2011.
• [3] Ashby, M.F., Evans, A.G., Fleck, N.A., Gibson, L.J., Hutchinson, J.W. and Wadley, H.N.G.: Metal foams: A design guide, Butterworth Heinemann, Boston, 2000.
• [4] Evans, A.G., Hutchinson, J.W., Fleck, N.A., Ashby, M.F. and Wadley, H.N.G.: The topological design of multifunctional cellular metals, Progress in Materials Science, 46, 309-327, 2001.
• [5] Wadley, H.N.G, Fleck, N.A.,. Evans, A.G.: Fabrication and structural performance of periodic cellular metal sandwich structures, Composites Science and Technology, 6316, 2331-2343, 2003.
• [6] Hutchinson, R.G., Wicks, N., Evans, A.G., Fleck, N.A. and Hutchinson, J.W.: Kargone plate structures for actuation, International Journal of Solids and structures, 4025, 6969-6980, 2003.
• [7] Qiu, X., Deshpande, V.S. and Fleck, N.A.: Finite element analysis of the dynamic response of clamped sandwich beams subject to shock loading, European Journal of Mechanics A- Solids, 226, 801-881, 2003.
• [8] Xue, Z.T, Hutchinson, J.W.: Preliminary assessment of sandwich plated subject to blast loads, International Journal of mechanical sciences, 454, 687-705, 2003.
• [9] Fleck, N.A., Deshpande, V.S.: The resistance of clamped sandwich beams to shock loading, Journal of Applied Mechanics, 713, 386-401, 2004.
• [10] Leotoing, L.,Drapier, S. and Vautrin, A.: Nonlinear interaction of geometrical and material properties in sandwich beam instabilities, International Journal of Solids and Structures 39, 717-3739, 2002.
• [11] Silva, H.M., De Meireles, J. F.: Effective Mechanical Behavior of Sandwich Beams under Uncoupled Bending and Torsion Loadings, Applied Mechanics and Materials, 590, 58-62, 2014.
• [12] Silva, H.M., De Meireles, J. F.: Effective Stiffness Behavior of Sandwich Beams under Uncoupled Bending and Torsion Loadings, 852, 469-475, 2016.
• [13] Silva, H.M., De Meireles, J.F.: Feasibility of Internally Reinforced Thin-Walled Beams for Industrial Applications, Applied Mechanics and Materials, 775, 119-124, 2015.
• [14] Weckman, R.: Diagonal ribs increase torsional rigidity, 1988.