Postbuckling of an Imperfect Plate Subjected to the Shear Load

• Autorzy: Psotny M.
• Języki publikacji: EN

Abstrakty

EN

The stability analysis of an imperfect plate subjected to the shear load is presented, a specialized code based on FEM has been created. The nonlinear finite element method equations are derived from the variational principle of minimum of total potential energy. To obtain the nonlinear equilibrium paths, the Newton–Raphson iteration algorithm is used. Corresponding levels of the total potential energy are defined. The peculiarities of the effects of the initial imperfections are investigated. Special attention is paid to the influence of imperfections on the post–critical buckling mode. Obtained results are compared with those gained using ANSYS system.

Słowa kluczowe

EN

stability; buckling; postbuckling; geometric nonlinear theory; initial imperfection

PL

stabilność; wyboczenie; teoria geometrycznie nieliniowa; niedoskonałość

• Wydawca: Wydawnictwo Politechniki Łódzkiej
• Czasopismo: Mechanics and Mechanical Engineering
• Rocznik: 2016
• Tom: Vol. 20, nr 2
• Strony: 177--184
• Opis fizyczny: Bibliogr. 20 poz.

Twórcy

autor

Psotny M.

• Department of Structural Mechanics Slovak University of Technology in Bratislava Radlinskeho 11, 810 05 Bratislava, Slovakia

Bibliografia

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• [12] ANSYS User’s Manual 13.0. Swanson Analysis Systems, Inc., 2010.
• [13] Kala, Z., Kala, J., Skaloud, M. and Teply, B.: Sensitivity Analysis of the Effect of Initial Imperfections on the Stress State in the Crack–Prone Areas of Breathing Webs, Proc. of the Fourth Int. Conf. on Thin–walled Structures, Loughborough (UK), 499–506, 2004.
• [14] Psotny, M. and Ravinger, J.: Post–Buckling Behaviour of Imperfect Slender Web, Engineering Mechanics, 14, No. 6, 423–429, 2007.
• [15] Bulson, P. S.: The Stability of Flat Plates, Chatto&Windus, London, 1970.
• [16] Bloom, F. and Coffin, D.: Handbook of Thin Plate Buckling and Postbuckling, Chapman&Hall/CRC, Boca Raton, 2001.
• [17] Rhodes, J.: Some observations on the post-buckling behaviour of thin plates and thin-walled members. Thin–walled structures, 41, No. 2-3, 207–226, 2003.
• [18] Psotny, M.: Total Potential Energy Levels in the Post–Buckling, Proceedings of 13 th International Scientific Conference VSU 2013, Sofia, Vol. I., 296–299, 2013.
• [19] Ravinger, J. and Psotny, M.: Stable and Unstable Paths in the Post-Buckling Behaviour of Slender Web, Coupled Instabilities in Metal Structures, Roma, 67–75, 2004.
• [20] Psotny, M.: Stable and unstable paths in geometrically nonlinear problems, Vydavatelstvo SvF STU, Bratislava (in Slovak), 2004.

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.