Euler–Lagrange coupling with damping effects: Application to slamming problems

Aquelet, Nicolas; Souli, M’hamed; Olovsson, Lars

doi:10.1016/j.cma.2005.01.010

Cited by 142 publications

(89 citation statements)

References 13 publications

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“…Current industrial applications include: sloshing involving a 'free surface' [14], and slamming problems [15], which are high velocity impact problems where the target is modeled as a fluid material, thus providing a more realistic representation of the impact event by capturing large deformations.…”

Section: Ale Descriptionmentioning

confidence: 99%

Transient Response of a Projectile in Gun Launch Simulation Using Lagrangian and Ale Methods

Tabiei¹,

Chowdhury²,

Aquelet³

et al. 2010

The International Journal of Multiphysics

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Section: Ale Descriptionmentioning

confidence: 99%

Transient Response of a Projectile in Gun Launch Simulation Using Lagrangian and Ale Methods

Tabiei¹,

Chowdhury²,

Aquelet³

et al. 2010

The International Journal of Multiphysics

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“…Energy is conserved with the penalty method; however, a slight disadvantage is the possible occurrence of stability problems. A detailed description of the penalty method is given by (Aquelet et al, 2005).…”

Section: The Penalty Coupling Methodsmentioning

confidence: 99%

Application of the penalty coupling method for the analysis of blood vessels

Pericevic

Moatamedi

2007

European Journal of Computational Mechanics

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Due to the significant health and economic impact of blood vessel diseases on modern society, its analysis is becoming of increasing importance for the medical sciences. The complexity of the vascular system, its dynamics and material characteristics all make it an ideal candidate for analysis through fluid-structure interaction (FSI) simulations. FSI is a relatively new approach in numerical analysis and enables the multi-physical analysis of problems, yielding a higher accuracy of results than could be possible when using a single physics code to analyse the same category of problems. This paper introduces the concepts behind the Arbitrary Lagrangian Eulerian (ALE) formulation using the penalty coupling method. It moves on to present a validation case and compares it to available simulation results from the literature using a different FSI method. Results were found to correspond well to the comparison case as well as basic theory.

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“…Since ALE approach is based on the arbitrary movement of a reference domain as a third one in addition to the common material and spatial ones, it controls the mesh geometry independently from material geometry (Aquelet, et al, 2003(Aquelet, et al, , 2006Souli, et al, 2000).…”

Section: Fsi Analysis Technique Of Ls-dyna Codementioning

confidence: 99%

“…These forces are added to the fluid and structure nodal forces, where fluid and structure is solved using an explicit finite element formulation. The EulerLagrange coupling algorithm uses a penalty coupling similar to penalty contact in Lagrangian analyses, as shown in Figs. 4 and 5, respectively (Aquelet, et al, 2006). (Aquelet, et al, 2006) In FSI problems with interface between different materials such as fluid and air, the distortion of the Lagrangian mesh makes many re-meshing steps for the continued calculation.…”

Section: Fsi Analysis Technique Of Ls-dyna Codementioning

confidence: 99%

“…These FSI problems could be conveniently simulated using Arbitrary Lagrangian Eulerian (ALE) formulation and Euler-Lagrange coupling algorithm of LS-DYNA code (LSTC, 2009). Volume of Fluid(VOF) method is adopted for solving a broad range of nonlinear free surface problems and coupling algorithm is more suitable for the FSI problems with very complicated structure, where fluid grid can overlap the structural mesh (Aquelet, et al, 2003(Aquelet, et al, , 2006Souli, et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Estimation of Acceleration Response of Freefall Lifeboat using FSI Analysis Technique of LS-DYNA Code

Bae¹,

Zakki²,

Kim³

et al. 2010

Journal of the Society of Naval Architects of Korea

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During certification of freefall lifeboats, it is necessary to estimate the injury potential of the impact loads exerted on the occupants during water entry. This paper focused on the numerical simulation to predict the acceleration response during the impact of freefall lifeboats on the water using FSI(Fluid-Structure Interaction) analysis technique of LS-DYNA code. FSI problems could be conveniently simulated by the overlapping capability using Arbitrary Lagrangian Eulerian(ALE) formulation and Euler-Lagrange coupling algorithm of LS-DYNA code. Through this study, it could be found that simulation results were in relatively good agreement with experimental ones in the acceleration peak values, and that the loading conditions were very sensitive to the acceleration responses by the experimental and simulation results.

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Euler–Lagrange coupling with damping effects: Application to slamming problems

Cited by 142 publications

References 13 publications

Transient Response of a Projectile in Gun Launch Simulation Using Lagrangian and Ale Methods

Transient Response of a Projectile in Gun Launch Simulation Using Lagrangian and Ale Methods

Application of the penalty coupling method for the analysis of blood vessels

Estimation of Acceleration Response of Freefall Lifeboat using FSI Analysis Technique of LS-DYNA Code

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