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A simulation-based approach to the fluid-structure interaction inside fatigue cracks in hydraulic components

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Experiments on hydraulic components indicated that hydraulic pressure causes an additional load on the crack faces and that a viscous fluids do not flow out during rapid load changes, which reduces the effective damage amplitude. In this work, a simulation of the fluid-structure interaction is model...

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Main Author: Michiels, Lukas
Format: Online
Language:English
Published: KIT Scientific Publishing 2026
Subjects:
Bauteilermüdung
Fluid-Struktur Interaktion
Fluid-Induziertes Rissschließen
Strömungssimulation
Fatigue
Fluid-Structure Interaction
Fluid-Induced Crack Closure
Computational Fluid Dynamics
thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials::TGB Mechanical engineering
Online Access:1869-6058 (Online)
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Summary:Experiments on hydraulic components indicated that hydraulic pressure causes an additional load on the crack faces and that a viscous fluids do not flow out during rapid load changes, which reduces the effective damage amplitude. In this work, a simulation of the fluid-structure interaction is modeled with an averaged thin-film flow and coupled with a mechanical model. The simulation of the oil flow in the crack and the crack provides a better understanding of the FSI and its impact on fatigue.

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