Nonlinear vibrations of doubly curved composite sandwich shells with FDM additively manufactured flexible honeycomb core

Аврамов, К. В.; Uspensky, B.

doi:10.1007/s00707-022-03426-w

Cited by 6 publications

(2 citation statements)

References 54 publications

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“…Work [13] presents outcomes about the stressdeformation state of honeycomb systems, accentuating the importance of continued research and prospects within industrial applications of these technologies. Meanwhile, a detailed exposition of multilayer shell structure manufacturing and associated calculations is presented in [14], delineating particular shell product behavior in [15].…”

Section: Literature Reviewmentioning

confidence: 99%

Damage Behavior of Multilayer Axisymmetric Shells Obtained by the FDM Method

Salenko,

Drahobetskyi,

Symonova

et al. 2024

JES

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This research rigorously explores the additive synthesis of structural components, focusing on unraveling the challenges and defect mechanisms intrinsic to the fused deposition modeling (FDM) process. Leveraging a comprehensive literature review and employing theoretical modeling and finite element analysis using ANSYS software, the study meticulously investigates the behavior of multilayer axisymmetric shells under varying internal pressure conditions. Critical parameters are identified, and the impact of design factors, including material properties, geometric parameters, and internal pressure, is quantitatively assessed using a rich digital dataset. In a series of model experiments, the study reveals specific numerical results that underscore the progressive nature of damage development in FDM-produced multilayer axisymmetric shells. Notably, under increasing internal pressure, stresses on the tank’s inner walls reach up to 27.5 MPa, emphasizing the critical importance of considering material properties in the design phase. The research also uncovers that the thickness of tank walls, while significant in resulting stresses, does not markedly impact the damage development mechanism. However, it places a premium on selecting rational parameters for the honeycomb system, including shell thickness, honeycomb height, honeycomb wall thickness, and honeycomb cell size, to minimize stress concentrations and enhance structural integrity. The inclusion of honeycomb structures in the tank design, as evidenced by specific results, provides enhanced thermal insulation properties. The research demonstrates that this design feature helps localize damage and mitigates the formation of significant trunk cracks, particularly along generative cracks.

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Section: Literature Reviewmentioning

confidence: 99%

Damage Behavior of Multilayer Axisymmetric Shells Obtained by the FDM Method

Salenko,

Drahobetskyi,

Symonova

et al. 2024

JES

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“…The use of thin-walled sandwich structures with honeycombs manufactured by additive technologies has several advantages over structures made by more traditional technologies [1][2][3][4][5]. Additive manufacturing simplifies the production of honeycombs and sandwich shells [6,7]. Moreover, the honeycombs have large strength and rigidity together with small weight.…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties of auxetic honeycombs realized via material extrusion additive manufacturing: Experimental testing and numerical studies

Uspensky,

Derevianko,

Avramov

et al. 2024

Preprint

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Combination of experimental testing and numerical analysis is suggested to determine static mechanical properties of the auxetic honeycombs realized via material extrusion. Special specimens, which consist of two honeycombs plates and three steel plates, are used to analyze experimentally shear mechanical properties of honeycombs. Shear testing is simulated using the finite elements software ANSYS. The tests on tension of honeycombs are carried out. These tests are simulated by finite elements software. Plasticity of the honeycomb material and geometrically nonlinear deformations of the honeycomb walls are accounted in honeycomb model. The experimental data and calculations results are close.

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