An accurate Galerkin-BEM approach for the modeling of quasi-static viscoelastic problems

Neto, Cesar Gonçalves; Santiago, J.A.F.; Telles, J. C. F.; Costa, E.G.A.

doi:10.1016/j.enganabound.2021.05.013

Cited by 8 publications

(2 citation statements)

References 19 publications

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“…One particularly reliable numerical approach for examining SSI issues is the finite element method. Researchers first simulated the unbounded domain of the soil mass, which stretches infinitely in one or both directions, using traditional finite element methods (Ai et al, 2014;Neto et al, 2021) . Many software programs, such as ROBOT, SAP2000, and others, place a high priority on structural analysis, often simplifying the contribution of foundations and subsoil with basic elastic spring constants.…”

Section: Model With Finite Elementsmentioning

confidence: 99%

Nonlinear Static Soil-Structure Interaction Analysis of Time-Dependent Soil Deformation Effects on RC Structures

Remadna,

Bezih,

Demagh

et al. 2024

J. Eng. Exact Sci.

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Soil response and superstructure behavior are two major factors influencing the long-term performance of reinforced concrete (RC) structures. Maintaining the structural integrity of these structures over time is crucial due to the complex static interactions between the soil and the structure. This study uses a finite element model to examine the stability of RC structures, considering the long-term static interactions between the nonlinear behavior of the soil and the structure. Numerical simulations are performed on real RC beam constructions at serviceability limit states (SLS) under various loading scenarios in both homogeneous and heterogeneous soil conditions. The parametric study's results indicate that soil heterogeneity and static soil-structure interactions significantly influence the design of RC structures. The nonlinear behavior of the soil over time intensifies these impacts further. This study shows how important it is to think about different types of soil and how they interact with structures when they are not moving. This is especially true when it comes to soil that is easily compressed and changes shape over time in a nonlinear way. By incorporating these factors, the research highlights the critical need to integrate soil heterogeneity and static interaction into the design process to ensure the stability and safety of RC structures. Ultimately, the results demonstrate that accounting for these complex interactions can greatly improve the durability and reliability of RC structures in diverse soil conditions.

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Section: Model With Finite Elementsmentioning

confidence: 99%

Nonlinear Static Soil-Structure Interaction Analysis of Time-Dependent Soil Deformation Effects on RC Structures

Remadna,

Bezih,

Demagh

et al. 2024

J. Eng. Exact Sci.

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“…The shear effects can be preponderant if the material is considered almost incompressible (such as rubber-like materials) or even the only effect when volumetric deformations are completely suppressed (for instance, in geophysical applications). Riobom Neto et al (2021) uses Boltzmann model in a Boundary Elements Formulation applied to plane and half-plane quasi-static viscoelastic problems considering only shear effects. Authors model the elastic behavior based on spherical tensors and the deviatoric constitutive relation based on Boltzmann model.…”

Section: Introductionmentioning

confidence: 99%

Shear contribution on viscoelastic behavior of beams modeled using plane frame elements with Reissner kinematics

Becho

Greco

Maciel

2022

Lat. Am. j. solids struct.

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The development of a numerical formulation is presented to describe viscoelastic behavior considering shear effects. The nonlinear positional formulation of the Finite Element Method is used considering plane frame elements with Reissner kinematics. The description of the viscoelastic behavior is considered through the adoption of a stress-strain relation based on Boltzmann rheological model. The used kinematics allows to describe the decoupling between the rotations and the displacements in element cross-sections. This approach allows to evaluate the contribution of shear effects in viscoelastic behavior in an original way. Based on the developments and the results obtained, it is possible to observe that strains and displacements due to viscoelastic behavior are significantly superior to the results obtained considering Bernoulli-Euler kinematics hypothesis. It is possible to notice a better agreement between the obtained numerical results and the results in the literature. Results obtained from the developed formulation allow the assessment of the shear effects on the viscoelastic behavior of plane frames.

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RI-IGABEM for 3D viscoelastic problems with body force

Zhan

Dai

et al. 2022

Computer Methods in Applied Mechanics and Engineering

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An accurate Galerkin-BEM approach for the modeling of quasi-static viscoelastic problems

Cited by 8 publications

References 19 publications

Nonlinear Static Soil-Structure Interaction Analysis of Time-Dependent Soil Deformation Effects on RC Structures

Nonlinear Static Soil-Structure Interaction Analysis of Time-Dependent Soil Deformation Effects on RC Structures

Shear contribution on viscoelastic behavior of beams modeled using plane frame elements with Reissner kinematics

RI-IGABEM for 3D viscoelastic problems with body force

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