Searched for: subject%3A%22sequentially%255C%2Blinear%255C%2Banalysis%22
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Bresser, D. (author), Rots, J.G. (author), Hendriks, M.A.N. (author), Pari, M. (author)
Sequentially Linear Analysis (SLA), an event-by-event solution strategy in which a sequence of scaled linear analyses with decreasing secant stiffness is performed, representing local damage increments; is a robust alternative to nonlinear finite element analysis of quasi-brittle structures. Since it is based on a fixed smeared crack...
journal article 2023
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Pari, M. (author), van de Graaf, Anne (author), Hendriks, M.A.N. (author), Rots, J.G. (author)
In the finite element modelling of masonry structures, the micro-modelling technique of differentiating the continuum into a linear elastic bulk, and interfaces representing non-linear joints is common. However, this approach of simulating cracking-crushing-shearing failure possibilities in interfaces, typical of damage in masonry, also poses...
journal article 2021
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Pari, M. (author)
Sequentially Linear Analysis (SLA) is a proven robust alternative to incremental-iterative solution methods in nonlinear finite element analysis (NLFEA) of quasi-brittle specimen. The core of the method is in its departure from a load, displacement or arc-length driven incremental approach (aided by internal iterations to establish equilibrium)...
doctoral thesis 2020
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Pari, M. (author), Hendriks, M.A.N. (author), Rots, J.G. (author)
Sequentially linear solution procedures provide a robust alternative to their traditional incremental-iterative counterparts for finite element simulation of quasi-brittle materials. Sequentially linear analysis (SLA), one such non-incremental (total) approach, has been extended to non-proportional loading situations in the past few years....
review 2020
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Bresser, Djonno (author)
Throughout the years, incremental iterative approaches have been shown to be excellent tools in describing the complex behaviour of structures under a wide range of circumstances. However, robustness issues arise for quasi-brittle structures due to the potential lost of convergence during the development of abrupt fracture mechanisms. In order...
master thesis 2019
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Yu, C. (author)
It is difficult to accurately predict the strength of masonry and concrete structures. The most widely used method for simulating their behaviour is finite element analysis with the Newton-Raphson method and arch length control. However, the Newton-Raphson method can diverge and not produce a result, for example in bifurcations or during snap...
doctoral thesis 2019
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Pari, M. (author), Swart, W. (author), van Gijzen, M.B. (author), Hendriks, M.A.N. (author), Rots, J.G. (author)
Sequentially linear analysis (SLA), an event-by-event procedure for finite element (FE) simulation of quasi-brittle materials, is based on sequentially identifying a critical integration point in the FE model, to reduce its strength and stiffness, and the corresponding critical load multiplier (λ <sub>crit</sub>), to scale the linear analysis...
journal article 2019
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Pari, M. (author), Hendriks, M.A.N. (author), Rots, J.G. (author)
Sequentially linear analysis (SLA), a non-incremental-iterative approach towards finite element simulation of quasi-brittle materials, is based on sequentially identifying a critical integration point in the model, to reduce its strength and stiffness, and the associated critical load multiplier (λ <sub>crit</sub> ), to scale the linear...
journal article 2019
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Meiring, Cynthia (author)
The unreinforced masonry construction of Dutch terraced houses in Groningen is prone to lateral earthquake loading. To analyse the capacity of these houses, the faculty of Civil Engineering at the TU Delft started a test campaign. In this thesis, the experimental results served as benchmarks to validate a relatively new numerical method:...
master thesis 2018
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Ferket, Max (author)
This research investigates how the equivalent frame method in combination with a sequentially linear analysis can be used to model the behaviour of a façade of an unreinforced masonry structure, subjected to a lateral pushover load. The experimental data of the two-story building experiment at the University of Pavia is used.<br/>Two different...
master thesis 2018
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Yu, C. (author), Hoogenboom, P.C.J. (author), Rots, J.G. (author)
Quasi brittle materials, such as un-reinforced masonry or concrete are difficult to analyse because often the traditional Newton–Raphson (N-R) procedure fails to converge. Many solutions have been proposed such as Sequentially Linear Analysis (SLA), but these may fail in case of non-proportional loading with a large prestress. In this paper a...
journal article 2018
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Verbrugge, Marnix (author)
This thesis is a study towards in-plane behaviour of masonry shear walls modelled through a predefined crack pattern at macro level. The Semi-Lumped method, proposed by Messali (2015), is analysed in detail to confirm the consequences of the SLM assumptions. This is achieved via literature and numerical validations. The final part of the thesis...
master thesis 2017
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Hagen, Corné (author)
Glass is gaining popularity as a structural material, this is mainly based on its transparent character. But due to its brittle failure behaviour the safety of these structures is an issue. Several concepts are found to guarantee the safety during the development of its structural application. One of these developments is to reinforce glass with...
master thesis 2017
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van de Graaf, A.V. (author)
The numerical simulation of brittle failure at structural level with nonlinear finite<br/>element analysis (NLFEA) remains a challenge due to robustness issues. We attribute these problems to the dimensions of real-world structures combined with softening behavior and negative tangent stiffness at local level which may lead to non-convergence, i...
doctoral thesis 2017
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Yu, C. (author), Hoogenboom, P.C.J. (author), Rots, J.G. (author)
Sequentially linear analysis (SLA) is an alternative to the Newton-Raphson method for analyzing the nonlinear behavior of reinforced concrete and masonry structures. In this paper SLA is extended to load cases that are applied one after the other, for example first dead load and then wind load. It is shown that every nonlinear analysis step can...
conference paper 2016
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Slobbe, A.T. (author)
The crack band approach (in the smeared crack concept) is widely used for the modeling of concrete fracture and is an important analysis technique within advanced engineering. However, the simulations can be impeded by mesh-induced directional bias. Cracks prefer to propagate along continuous mesh lines, which causes a dependency of the...
doctoral thesis 2015
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Kraus, J. (author)
The modelling of brittle fracture is essential for the assessment of structural safety. It remains a challenge due to sharp material softening after realization of the material strength. Standard nonlinear finite element analysis techniques using incremental-iterative solution procedures have been adapted to deal with the sharp softening curves...
master thesis 2014
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Voormeeren, L.O. (author)
When analyzing three-dimensional problems with nonlinear finite element analysis (NLFEA) often problems are encountered such as bifurcation and divergence of the solution. In particular, cases subjected to tension softening tend to encourage the emergence of multiple equilibrium paths. In order to overcome these problems the Sequentially Linear...
master thesis 2011
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Ensink, Sebastiaan (author)
master thesis 2010
document
Billington, S.L. (author)
conference paper 2009
Searched for: subject%3A%22sequentially%255C%2Blinear%255C%2Banalysis%22
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