Monolithic and partitioned approaches to determine static deformation of membrane structures due to ponding

Narayanan, N. Kodunthirappully; Wüchner, Roland; Degroote, Joris

doi:10.1016/j.compstruc.2020.106419

Cited by 6 publications

(3 citation statements)

References 28 publications

(58 reference statements)

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“…As the membranes are rather soft showing large deformations the nonlinear solution with the direct scheme as proposed in section 4.2, see equations (37) and following leads often to considerable convergence problems. In Reference 62 the authors propose and prove new robust algorithms with a particular focus on the volume constraint on various 3D ponding problems showing good efficiency and better convergence.…”

Section: Realistic Modeling Of Gas‐fluid‐structure Interaction and Li...mentioning

confidence: 99%

Some remarks on load modeling in nonlinear structural analysis–Statics with large deformations–Consistent treatment of follower load effects and load control

Schweizerhof,

Konyukhov

2024

Numerical Meth Engineering

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Load modeling in nonlinear statics, particularly incorporating large deformations differs significantly from the treatment in linear analysis. As in structural dynamics masses in a gravity field generate the loading, their location, and their modifications within the deformation process must be considered in a nonlinear simulation. A specific view besides loading by masses is on gas and fluid interaction with structures. In addition, load control using specifically designed algorithms is evaluated with respect to realistic applications. Within the load modeling an unavoidable, however side aspect, is the general discussion about the so‐called follower forces and non‐conservative loading. As an example of real‐world applications, the specifics of inflated rubber dams are presented.

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Section: Realistic Modeling Of Gas‐fluid‐structure Interaction and Li...mentioning

confidence: 99%

Some remarks on load modeling in nonlinear structural analysis–Statics with large deformations–Consistent treatment of follower load effects and load control

Schweizerhof,

Konyukhov

2024

Numerical Meth Engineering

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“…Snow loads and the accumulation of water, called ponding, also have to be modeled carefully for the analysis of membrane structures. Both load cases highly depend on the membrane's surface inclination and deformation, again highlighting the necessity of performing geometrically non-linear analyses, see [25,12]. Lastly, the interaction with the supporting structure should be mentioned, as the flexibility of connections and their interaction with the membrane and cables can also have an effect on the load bearing behavior of the overall system [14].…”

Section: Ann-kathrin Goldbach and Kai-uwe Bletzingermentioning

confidence: 99%

Tracing non-linearities in the load bearing behavior of structural membranes: Typical shapes and load cases investigated towards European standardization

Goldbach,

Bletzinger

2024

ACSE

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One of the prevalent challenges in the design, numerical analysis,, and verification of structural membranes lies in the non-linearity of their loadresponse curves. Structural analysis has to be performed with a geometrically non-linear approach due to the interaction of form and forces, and thus a linear extrapolation or combination of analysis results is not possible. The appropriate modeling of the environmental impacts (such as wind and snow) also has a significant influence on the analysis results. Furthermore, non-linear material behavior can be of interest. The resulting load-response curves (e.g. stresses and deformations) are typically non-linear and their interpretation towards the underlying safety requirements is not straight forward. In addition, the prestress also has a major influence on membranes' structural behavior. However, the current European regulations for the proof of the limit states (ULS and SLS) of any building require a simplified categorization of the structural behavior. This research investigates the load-bearing behavior of typical re occurring membrane shapes in the context of current verification requirements. Typical load cases are applied and the structural behavior is shown under consideration of the mentioned non-linearities.

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“…This is clearly a fluid-structure interaction phenomenon (FSI) involving coupling of a membrane structure, ponding water and the wind. In our previous work [2], we developed partitioned and monolithic algorithms to calculate the static deformation of a membrane structure due to a given volume of ponding water, which will serve as an initial condition for the time varying FSI simulation.…”

mentioning

confidence: 99%

Simulation of wind induced excitation of a membrane structure with ponding water

Narayanan¹,

Wüchner²,

Degroote³

2022

8th European Congress on Computational Methods in Applied Sciences and Engineering

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Monolithic and partitioned approaches to determine static deformation of membrane structures due to ponding

Cited by 6 publications

References 28 publications

Some remarks on load modeling in nonlinear structural analysis–Statics with large deformations–Consistent treatment of follower load effects and load control

Some remarks on load modeling in nonlinear structural analysis–Statics with large deformations–Consistent treatment of follower load effects and load control

Tracing non-linearities in the load bearing behavior of structural membranes: Typical shapes and load cases investigated towards European standardization

Simulation of wind induced excitation of a membrane structure with ponding water

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