Helical buckling of thin rods: FE modelling
MATEC Web of Conferences, 2018 In this paper, we utilize the Finite Element (FE) method to model twisting of long thin rods and capture the bifurcation scenarios leading to heli- cal buckling and various further post-buckling states.
Kapitaniak Marcin +2 more
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Active Metamaterials with Tunable Shear Nonreciprocity and Nonlinear Dynamics. [PDF]
Adv Sci (Weinh)Active gear‐based mechanical metamaterials enable simultaneous control of translational and torsional stiffnesses by 30–100×, break shear reciprocity under positive versus negative loads, broadly tune resonant frequencies, and offer programmable dynamic responses.
Fang X, Yu M, Yu D, Cheng L.
europepmc +2 more sources
Automated classification of linear bifurcation buckling eigenmodes in thin-walled cylindrical shell structures [PDF]
, 2022 Computational problems in structural engineering are growing ever larger and solutions must increasingly be based on correspondingly large datasets obtained from detailed parametric sweeps.
Sadowski, Adam
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Numerical and Analytical Investigation of Stability of the Reinforced Plate
Communications, 2021 The work is aimed at the construction of an algorithm for studying the equilibrium states of a reinforced plate near critical points, using the first (cubic terms) nonlinear terms of the potential energy expansion.
Gaik A. Manuylov +2 more
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Efficient handling of stability problems in shell optimization by asymmetric ‘worst-case’ shape imperfection [PDF]
, 2008 The paper presents an approach to shape optimization of proportionally loaded elastic shell structures under stability constraints. To reduce the stability-related problems, a special technique is utilized, by which the response analysis is always ...
Brank, Boštjan +3 more
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Post-Buckling Behaviour of Steel Structures with Different Types of Imperfections
Applied Sciences, 2022 In this paper, the stability of steel members with a complex initial geometrical imperfection pattern are analysed. This issue is extremely important in the case of slender structures, characterised by multiple close critical loads and modal interactions,
Katarzyna Rzeszut
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Compound Bifurcations in the Buckling of a Delaminated Composite Strut [PDF]
Nonlinear Dynamics, 2006 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Buckling of an axisymmetric vesicle under compression: the effects of resistance to shear [PDF]
, 2007 We consider the axisymmetric deformation of an initially spherical, porous vesicle with incompressible membrane having finite resistance to in-plane shearing, as the vesicle is compressed between parallel plates.
Jensen, O. E.; id_orcid +4 more
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Nonlinear Static Stability of Imperfect Bio-Inspired Helicoidal Composite Beams
Mathematics, 2022 The objective of this manuscript is to develop, for the first time, a mathematical model for the prediction of buckling, postbuckling, and nonlinear bending of imperfect bio-inspired helicoidal composite beams with nonlinear rotation angle.
Nazira Mohamed +2 more
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Probing Shells Against Buckling: A Nondestructive Technique for Laboratory Testing [PDF]
, 2021 This paper addresses testing of compressed structures, such as shells, that exhibit catastrophic buckling and notorious imperfection sensitivity. The central concept is the probing of a loaded structural specimen by a controlled lateral displacement to ...
Sieber, Jan +2 more
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