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Optimization of slender structures considering geometrical imperfections
Inverse Problems in Science and Engineering, 2006In this article, we present an optimization model which incorporates uncertainty induced by geometrical imperfections. Within the model, geometrical imperfections are represented by means of random fields. The induced uncertainties are then treated using the concept of a convex model.
M. Baitsch, D. Hartmann
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The implication and evaluation of geometrical imperfections on manufactured surfaces
CIRP Annals, 2022 This paper takes the broad topic of geometrical surface imperfections on manufactured surfaces and provides an overview of how they affect component functionality and how they may be detected and classified as defects or not.
B. Mullany +3 more
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Engineering Structures, 2018 In many applications structures need to be easily moveable, or assembled at high speed on unprepared sites. Forthis purpose, preassembled deployable structures, which consist of beam elements connected by hinges, arehighly effective.
N De Temmerman, Peter Z Berke
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International Journal of Solids and Structures, 2014 In this study, we investigate the effect of geometrical imperfections on swelling-induced buckling patterns in gel films with a square lattice of holes.
Dai Okumura, Nobutada Ohno
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Geometric imperfections of additive manufactured members
Engineering Structures, 2022Abstract Challenges in civil engineering and construction industries increase, and simultaneously it is necessary to provide a sustainable utilization of resources. Optimising material applications and manufacturing processes is therefore essential for modern constructions.
M. Kraus +5 more
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Dynamic Stability of Shallow Arches with the Geometrical Imperfections
2009 International Joint Conference on Computational Sciences and Optimization, 2009The dynamic stability of the hinged-hinged sinusoidal shallow arch with geometrical imperfection under time wise distributed load is investigated in this paper. First, the nonlinear governing equation of shallow arch is derived from the d’Alembert principle and Euler-Bernoulli assumption.
Jiangen Lv, Zhuangpeng Yi, Ronghui Wang
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Composite Structures, 2022 In this paper, the influence of initial geometrical imperfections on thermal stability of laminated composite plates using Layer wise plate model is presented.
Ćetković, Marina
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Dynamic Instability and Resonances of Geometrically Imperfect Plates
Volume 1D: 16th Biennial Conference on Mechanical Vibration and Noise, 1997Abstract The parametric resonance and other dynamic instabilities of a rectangular plate with initial geometric imperfections acted upon by parametric excitation have been investigated. The temporal equations of motion describing the non-linear behavior of these plates for large oscillations are solved using a direct integration. Results
Germain L. Ostiguy, Lyne St-Georges
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Mechanics of Solids, 2023
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Sedebo, G. T. +4 more
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zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Sedebo, G. T. +4 more
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International Journal of Solids and Structures, 2011 The problem about identification of resistance forces acting on a drill column moving in an inclined bore-hole is stated. It is supposed that the well trajectories can have geometrical imperfections in the shape of cylindrical spiral or plane ...
V I Gulyayev
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